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DELL OptiPlex 760

1. Keyboard failure or keyboard cable loose see Keyboard Problems No boot device available The system cannot detect a bootable device or partition o If the floppy drive is your boot device ensure that the cables are connected and that a bootable floppy disk is in the drive o If the hard drive is your boot device ensure that the cables are connected and that the drive is installed properly and partitioned as a boot device o Enter System Setup and ensure that the boot sequence information is correct See System Setup No timer tick interrupt A chip on the system board might be malfunctioning or motherboard failure see Contacting Dell for assistance Non system disk or disk error Replace the floppy disk with one that has a bootable operating system or remove the floppy disk and restart the computer Not a boot diskette Insert a bootable floppy disk and restart your computer NOTICE Hard Drive SELF MONITORING SYSTEM has reported that a parameter has exceeded its normal operating range Dell recommends that you back up your data regularly A parameter out of range may or may not indicate a potential hard drive problem S M A R T error possible HDD failure This feature can be enabled or disabled in the system setup Hardware Troubleshooter If a device is either not detected during the operating system setup or is detected but incorrectly configured you can use the Hardware Troubleshooter to resolve the incomp
2. Ability to discover track and inventory assets in the presence or absence of the operating systems The computer must have the power cable connected and must be connected to the network Ability to power on and power off the computer remotely whatever the state of the operating system Advanced Functionality K NOTE Additional management software and purchasing options are required for some of the following features Ability to do remote issues remediation 1 to 1 via text based console redirection Serial over LAN and IDE redirection Hardened security via agent presence enables detection of removed agents and network access control Circuit breaker and software version control Your computer aids in troubleshooting iAMT by providing the following iAMT related error messages Error Message Description SERVICE_MODE jumper The service mode jumper is Do not populate the SERVICE_MODE jumper AMT will not function properly Only manufacturing installed uses this jumper MEMORY Unsupported memory configuration Populate Unable to launch ME AMT functionality is broken when DIMM1 is not populated DIMM1 Out of Band Management The term out of band refers to the ability to manage the computer in the absence of an operating system or with the operating system in an unusable state or with the computer powered off The only requirement for managing such a computer is for AMT capability to be enabled and a
3. E5 5 Cal 5 5 f es f Les Cal Cala C fla Calj Cal Cul Cal rae oe eS Bs eB S AD a Az 7 E rea 6 fewe fea 7 1 n r r T r T r 20 Pin Number Signal Name 18 AWG Wire DC Power Connectors P3 P5 P8 and P9 94321 Pin Number Signal name 18 AWG Wire 13 3 VDC svoe Red Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Speakers Speakers Removing the Speaker A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance ras CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 Remove the cover of your computer see Removing the Computer Cover 3 Disconnect the cables from the system board 4 Remove the speaker from the chassis of the computer 5 Replace the computer cover see Replacing the Computer Cover 6 Turn on power to the computer I nstalling the Speaker WARNI NG Before working inside your computer read the safety information that shipped with your computer
4. 1 Click Start Control Panel Appearance and Themes 2 Click the area you want to change or click the Display icon 3 Try different settings for Color quality and Screen resolution Windows Vista 1 Click Start Control Panel gt Hardware and Sound gt Personalization gt Display Settings 2 Adjust Resolution and Colors settings as needed 3D image quality is poor Check the graphics card power cable connection Ensure that the power cable for the graphics card s is correctly attached to the card Check the monitor settings See the monitor documentation for instructions on adjusting the contrast and brightness demagnetizing degaussing the monitor and running the monitor self test Only part of the display is readable Connect an external monitor 1 Shut down your computer and connect an external monitor to the computer 2 Turn on the computer and the monitor and adjust the monitor brightness and contrast controls If the external monitor works the computer display or video controller may be defective Contact Dell see Contacting Dell Dell Technical Update Service The Dell Technical Update service provides proactive e mail notification of software and hardware updates for your computer The service is free and can be customized for content format and how frequently you receive notifications To enroll for the Dell Technical Update service go to support dell com technicalupdate Back to C
5. 6 Check all cable connections and fold cables out of the way to provide airflow for the fan and cooling vents 7 Replace the computer cover see Replacing the Computer Cover 8 Enter system setup and use the Diskette Drive option to enable your new floppy drive see System Setup See the documentation that came with the drive for instructions on installing any software required for drive operation 9 Verify that your computer works correctly by running the Dell Diagnostics see Dell Diagnostics Media Card Reader WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover Removing a Media Card Reader 1 Follow the procedures in Working on Your Computer 2 Lay the computer on its side so that the system board is on the bottom of the inside of the computer 3 Remove the computer cover see Removing the Computer Cover 4 Remove the optical drive and carefully set it aside see Optical Drive A CAUTI ON Do not pull the drive out of the computer by the drive cables Doing so may cause damage to cables and the cable connectors 5 Remove the cable from the media card reader connector 6 Remove the hard drive see
6. A dedicated graphics port that allows system memory to be used for video related tasks AGP delivers a smooth true color video image because of the faster interface between the video circuitry and the computer memory AHCI Advanced Host Controller Interface An interface for a SATA hard drive Host Controller which allows the storage driver to enable technologies such as Native Command Queuing NCQ and hot plug ALS ambient light sensor A feature that helps to control display brightness antivirus software A program designed to identify quarantine and or delete viruses from your computer ASF alert standards format A standard to define a mechanism for reporting hardware and software alerts to a management console ASF is designed to be platform and operating system independent battery life span The length of time years during which a portable computer battery is able to be depleted and recharged battery operating time The length of time minutes or hours that a portable computer battery powers the computer BIOS basic input output system A program or utility that serves as an interface between the computer hardware and the operating system Unless you understand what effect these settings have on the computer do not change them Also referred to as system setup bit The smallest unit of data interpreted by your computer Bluetooth wireless technology A wireless technology standard
7. data power cable 5 Replace the computer cover see Replacing the Computer Cover 6 Verify that your computer works correctly by running the Dell Diagnostics see Dell Diagnostics Optical Drive A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before replacing the cover Removing an Optical Drive 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Disconnect the power and data cables from the back of the drive and system board 4 Grasp the sliding plate lever and slide it downwards until the drive panel snaps open while holding the lever down slide the drive out of the computer optical drive drive release latch Installing an Optical Drive 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 If you are replacing an optical drive remove the shoulder screws from the existing drive and attach the screws to the replacement drive 4 If you are installing a new optical drive remove the drive panel insert remove the shoulder screws from the inside of the drive panel insert and attach the screws to t
8. module locking switch 2 If the module bay contains an airbay remove the security screw and pull the airbay out of the module bay and skip to step 5 gt lt bottom of computer 3 Press the device latch release so that the latch release pops out drive release latch CAUTION Do not place any heavy objects on top of the computer Doing so may bend the chassis and cause difficulty in removing a module device 4 Pull the device by the latch release to remove the device from the module bay 1 latch release 5 Slide the new device into the module bay 6 If desired you may lock the new device in the module bay by moving the module locking switch to the locked position you must remove the computer cover to use the locking switch 7 If you removed the cover to lock the device in the module bay replace the computer cover see Replacing the Computer Cover 1 bottom of computer 2 security screw Removing and Installing a Device When Your Computer Is Running K NOTE Installing and removing a device while the computer is running may not be applicable to all SATA operating modes To enable this feature set SATA Operation to AHCI or RAID Operation in the system setup program Microsoft Windows 1 To remove a device installed in the module bay double click the Safely Remove Hardware icon on the taskbar 2 In the list of devices that appears on your screen click the device you want to eject
9. F2 to run the setup utility To determine whether you need to replace the battery reenter the time and date in system setup and exit the program to save the information Turn off your computer and disconnect it from the electrical outlet for a few hours then reconnect the computer turn it on and enter system setup see Entering System Setup If the date and time are not correct in system setup replace the battery You can operate your computer without a battery however without a battery the configuration information is erased if the computer is turned off or unplugged from the electrical outlet In this case you must enter system setup see Entering System Setup and reset the configuration options A WARNING A new battery can explode if it is incorrectly installed Replace the battery only with the same or equivalent type recommended by the manufacturer Discard used batteries according to the manufacturer s instructions To remove the battery 1 If you have not already done so make a copy of your configuration information found in system setup 2 Follow the procedures in Working on Your Computer 3 Remove the computer cover 4 Locate the battery socket CAUTION If you pry the battery out of its socket with a blunt object be careful not to touch the system board with the object Ensure that the object is inserted between the battery and the socket before you attempt to pry out the battery Otherwise you may damage the system b
10. For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance A CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 Remove the cover of your computer see Removing the Computer Cover 3 Insert the speaker into the chassis of the computer 4 Connect the cables to the system board 5 Replace the computer cover 6 Turn on power to the computer Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual System Fan System Fan WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis Removing the System Fan 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the heat sink a
11. If you have to repeatedly reset time and date information after turning on the computer or if an incorrect time or date displays during start up replace the battery see Replacing the Battery on page 157 If the battery still does not work properly contact Dell see Contacting Dell Drive Problems A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance Ensure that Microsoft Windows Recognizes the drive Windows XP Click Start and click My Computer Windows Vista Click the Windows Vista Start button and click Computer If the drive is not listed perform a full scan with your antivirus software to check for and remove viruses Viruses can sometimes prevent Windows from recognizing the drive Test the drive Insert another disc to eliminate the possibility that the original drive is defective Insert a bootable floppy disk and restart the computer Clean the drive or disk See the Dell Technology Guide for more information on cleaning your computer Check the cable connections Run the Hardware Troubleshooter See Hardware Troubleshooter on page 83 Run the Dell Diagnostics See Dell Diagnostics Optical drive problems K NOTE High speed optical drive vibration is normal and may caus
12. NOTE Use the guides on the I O panel bracket to help position the I O panel in place and use the notch on the I O panel bracket to help seat the card Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Power Supply Power Supply Replacing the Power Supply WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 If installed remove the optical drive see Removing an Optical Drive 4 If installed remove the floppy drive or media card reader see Floppy Drive 5 Disconnect the DC power cables from the system board and the drives NOTE Remember the routing of the DC power cables underneath the tabs in the computer frame as you remove them from the system board and drives You must route these cables properly when you replace them to prevent their being pinched or crimped 6 Remove the three screws that attach the power supply to the computer chassi
13. Q A possible USB failure has occurred Reinstall all USB devices and check all cable connections If two or more memory modules are installed remove the modules see Removing Memory Module s then reinstall one module see Installing Memory Module s and restart the computer If the computer starts normally continue to install additional memory modules one at a time until you have identified a faulty module or reinstalled all modules without error If available install working memory of the same type into your computer see Memory If the problem persists contact Dell see Contacting Dell Memory modules are detected but a Ensure that no special requirements for memory module connector placement exist memory configuration or compatibility Ensure that the memory you are using is supported by your computer see the Setup and error has occurred Quick Reference Guide that ships with your computer If the problem persists contact Dell see Contacting Dell A possible expansion card failure has Determine if a conflict exists by removing an expansion card not a graphics card and occurred restarting the computer see the Cards section for your computer If the problem persists reinstall the card you removed then remove a different card and restart the computer Repeat this process for each expansion card installed If the computer starts normally troubleshoot the last card removed from the computer for resource conflict
14. front panel connector FRONTPANEL power connector MIGRO_pwR n r 15 PCI connector SLOT3 battery socket BATTERY 17 PS 2 or serial connector SERIAL2 18 floppy connector DSKT 19 fan connector FAN_CPU DOO o Back to Contents Page Back to Contents Page Contacting Dell Dell OptiPlex 760 Service Manual To contact Dell for sales technical support or customer service issues 1 Visit support dell com 2 Verify your country or region in the Choose a Country Region drop down menu at the bottom of the page 3 Click Contact Us on the left side of the page 4 Select the appropriate service or support link based on your need 5 Choose the method of contacting Dell that is convenient for you Back to Contents Page Back to Contents Page Glossary Dell OptiPlex 760 Service Manual Terms in this Glossary are provided for informational purposes only and may or may not describe features included with your particular computer A AC alternating current The form of electricity that powers your computer when you plug the AC adapter power cable in to an electrical outlet ACPI advanced configuration and power interface A power management specification that enables Microsoft Windows operating systems to put a computer in standby or hibernate mode to conserve the amount of electrical power allocated to each device attached to the computer AGP accelerated graphics port
15. A measure of time that equals one thousandth of a second Access times of storage devices are often measured in ms network adapter A chip that provides network capabilities A computer may include a network adapter on its system board or it may contain a PC Card with an adapter on it A network adapter is also referred to as a NIC network interface controller NIC See network adapter notification area The section of the Windows taskbar that contains icons for providing quick access to programs and computer functions such as the clock volume control and print status Also referred to as system tray ns nanosecond A measure of time that equals one billionth of a second NVRAM nonvolatile random access memory A type of memory that stores data when the computer is turned off or loses its external power source NVRAM is used for maintaining computer configuration information such as date time and other system setup options that you can set O optical drive A drive that uses optical technology to read or write data from CDs DVDs or DVD RWs Example of optical drives include CD drives DVD drives CD RW drives and CD RW DVD combo drives P parallel connector An I O port often used to connect a parallel printer to your computer Also referred to as an LPT port partition A physical storage area on a hard drive that is assigned to one or more logical storage areas known as logical drives Each part
16. CAUTI ON When sliding the I O panel out of the computer be extremely careful Carelessness may result in damage to the cable connectors and the cable routing clips 4 Gently rotate and slide the I O panel away from the computer 1 0 panel I O cable connector Fi I O connector pull loop 5 Remove the cable from the I O panel by pulling on the pull tab Replacing the I O Panel To replace the I O panel follow the removal procedures in the reverse order K NOTE Use the guides on the I O panel bracket to help position the I O panel in place and use the notch on the I O panel bracket to help seat the card Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Power Supply Power Supply Replacing the Power Supply WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Disconnect the DC power cables from the system board and the drives Note th
17. Connect your computer and monitor to electrical outlets and turn them on After the Microsoft Windows desktop appears on your computer shut down your computer Turn off the monitor and disconnect it from the electrical outlet Disconnect the computer power cable from the electrical outlet and press the power button to ground the system board Open the computer cover Locate the 2 pin password jumper on the system board and attach the jumper to reenable the password feature Replace the computer cover see Replacing the Computer Cover A CAUTI ON To connect a network cable first plug the cable into the network wall jack and then plug it into the computer 12 Connect your computer and devices to electrical outlets and turn them on K NOTE This procedure enables the password feature When you enter system setup see Entering System Setup both system and administrator password options appear as Not Set meaning that the password feature is enabled but no password is assigned 13 Assign a new system and or administrator password Clearing CMOS Settings A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover 3 Reset the current CMOS settings a Loc
18. EEE 1394 device not provided by Dell Contact the IEEE 1394 device manufacturer Keyboard Problems A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance Check the keyboard cable Ensure that the keyboard cable is firmly connected to the computer Shut down the computer see Before Working on Your Computer reconnect the keyboard cable as shown on the setup diagram for your computer and then restart the computer Ensure that the cable is not damaged or frayed and check cable connectors for bent or broken pins Straighten any bent pins Remove any keyboard extension cables and connect the keyboard directly to the computer Test the keyboard Connect a properly working keyboard to the computer then try using the keyboard Run the Hardware Troubleshooter See Hardware Troubleshooter Lockups and Software Problems A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance The computer does not start up Check the diagnostic lights See Diagnostic Lights Ensure that the power cable is firmly connected to the computer and to
19. F12 Boot Menu appears in the upper right corner of the screen press lt F12 gt If you wait too long and the operating system logo appears continue to wait until you see the Microsoft Windows desktop then shut down your computer and try again 4 The Boot Menu appears listing all available boot devices 5 Use the arrow keys to select the appropriate device for the current boot only K NOTE To boot to a USB device the device must be bootable To ensure that a device is bootable check the device documentation Changing the Boot Sequence for Future Boots 1 Enter System Setup see Entering System Setup 2 Click to expand SystemBoard and then click Boot Sequence 3 Highlight the appropriate device from the list of devices on the right and then click the up or down arrows to move the item you want to change 4 Click Apply to save the changes and then click Exit to exit System Setup and resume the boot process Booting to a USB Device K NOTE To boot to a USB device the device must be bootable To ensure that your device is bootable check the device documentation Memory Key 1 Insert the memory key into a USB port and restart the computer 2 When F12 Boot Menu appears in the upper right corner of the screen press lt F12 gt The BIOS detects the device and adds the USB device option to the boot menu 3 From the boot menu select the number that appears next to the USB device The computer boots to the
20. IN O O Black Black m ul 3 3 VDC 3 3 VDC Orange m oOo Orange m N U O A Gray Black m Ko 12 VDC 12 VDC N oO Blue N m O O m O O z Black N N PS_ON Green 5 VDC D O O z lt lt o D o N Ww 24 5 VDC Red DC Power Connector P2 Pin Number Signal Name 18 AWG Wire DC Power Connector P5 and P6 94321 Pin Number 18 AWG Wire 3 3 VDC Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Speakers Speakers Removing a Speaker WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 Remove the cover of your computer see Removing the Computer Cover 3 Disconnect the speaker cable from the INT_SPKR connector on the system board 4 Press the release tab and then slide the speaker down and away from the computer chassis 3 eveaterane SiC A 5 Replace the computer cove
21. K NOTE You cannot remove a device if your computer is turned on and the device is locked in the module bay You must shut down the computer and follow the steps in Removing and Installing a Device When Your Computer Is Turned Off to remove a locked device A CAUTI ON Do not place any heavy objects on top of the computer Doing so may bend the chassis and cause difficulty in removing a module device 3 When a computer message indicates that you can remove the device remove the device from the module bay 4 Slide the new device into the module bay Securing a Device in the Module Bay 1 Remove the computer cover see Removing the Computer Cover 2 Gently press the module locking switch down until it locks into place 3 Replace the computer cover see Replacing the Computer Cover The module cannot be removed from the computer until you lift the module locking switch into its unlocked position 4 You may also secure a device in the module bay by using a security screw packaged separately accessed from the bottom of the computer bottom of computer Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Cable Cover Optional Cable Cover Optional Attaching the Cable Cover 1 Ensure that all external device cables are threaded through the hole in the cable cover 2 Connect all device cables to the connectors on the back of the computer 3 Hold the bottom of the cable cover
22. K NOTE Your Dell computer uses only PCI and PCI Express slots K NOTE The serial port adapter for your mini tower computer includes two PS 2 connectors If you are replacing a card uninstall the driver for the existing card See the documentation that came with the card for instructions 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently push the release tab on the card retention latch from the inside to pivot the latch open The latch will remain in the open position card retention latch alignment guide fears ___ _ 4 card edge connector S card connector __ 6 release tab 4 If you are installing a new card remove the filler bracket to create a card slot opening 5 If you are replacing a card that is already installed in the computer remove the card If necessary disconnect any cables connected to the card 6 If your card includes a card retention bar remove the bar Gently pull the securing tab grasp the card by its top corners and ease it out of its connector 7 Prepare the new card for installation WARNING Some network adapters automatically start the computer when they are connected to a network To guard against electrical shock be sure to unplug your computer from its electrical outlet before installing any cards gt K NOTE See the documentation that came with the card for information on configuring the card making int
23. Programs Use an older program with this version of Windows 2 Inthe welcome screen click Next 3 Follow the instructions on the screen A solid blue screen appears Turn the computer off If you are unable to get a response by pressing a key on your keyboard or moving your mouse press and hold the power button for at least 8 to 10 seconds until the computer turns off and then restart your computer Other software problems Check the software documentation or contact the software manufacturer for troubleshooting information Ensure that the program is compatible with the operating system installed on your computer Ensure that your computer meets the minimum hardware requirements needed to run the software See the software documentation for information Ensure that the program is installed and configured properly Verify that the device drivers do not conflict with the program If necessary uninstall and then reinstall the program Back up your files immediately Use a virus scanning program to check the hard drive floppy disks CDs or DVDs Save and close any open files or programs and shut down your computer through the Start menu Memory Problems A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance If you receive
24. Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headphone or line in connectors on the back panel of the computer 15 If you installed a network adapter card and want to turn off the integrated network adapter a Enter system setup select System Configuration gt Integrated NIC and change the setting to Disabled See Entering System Setup b Connect the network cable to the network adapter card s connectors Do not connect the network cable to the integrated network connector on the back panel of the computer ris CAUTION If you disable the integrated network adapter you will not have AMT functionality 16 Install any drivers required for the card as described in the card documentation PS 2 Serial Port Adapter WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis Installing a PS 2 Serial Port Adapter 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Compute
25. Setup 2 Type the administrator password at the prompt 3 Highlight Admin Password and press the left or right arrow key to delete the existing administrator password The setting changes to Not Set To assign a new administrator password perform the steps in Assigning an Administrator Password 4 Exit system setup Disabling a Forgotten Password and Setting a New Password To reset system and or administrator passwords see Clearing Forgotten Passwords Jumper Settings Mini Tower Small Form Factor Ultra Small Form Factor Jumper Setting Description Password features are enabled default setting Password features are disabled RTCRST The real time clock has not been reset The real time clock is being reset jumpered temporarily On O jumpered unjumpered Clearing Forgotten Passwords WARNI NG Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance A CAUTI ON This process erases both the system and administrator passwords 10 11 Follow the procedures in Working on Your Computer Remove the computer cover Locate the 2 pin password jumper PSWD on the system board and remove the jumper to clear the password See Password Protection Replace the computer cover see Replacing the Computer Cover
26. an insufficient memory message Save and close any open files and exit any open programs you are not using to see if that resolves the problem See the software documentation for minimum memory requirements If necessary install additional memory see Installing Memory Module s Reseat the memory modules see Memory to ensure that your computer is successfully communicating with the memory Run the Dell Diagnostics see Dell Diagnostics If you experience other memory problems Reseat the memory modules see Memory to ensure that your computer is successfully communicating with the memory Ensure that you are following the memory installation guidelines see Installing Memory Module s Ensure that the memory you are using is supported by your computer For more information about the type of memory supported by your computer see Memory Run the Dell Diagnostics see Dell Diagnostics Mouse Problems A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance Check the mouse cable Ensure that the cable is not damaged or frayed and check cable connectors for bent or broken pins Straighten any bent pins Remove any mouse extension cables and connect the mouse directly to the computer Verify that the mouse cable is connected
27. as shown on the setup diagram for your computer Restart the computer Simultaneously press lt Ctrl gt lt Esc gt to display the Start menu Press lt u gt press the up and down arrow keys to highlight Shut down or Turn Off and then press lt Enter gt After the computer turns off reconnect the mouse cable as shown on the setup diagram Turn on the computer me a a Test the mouse Connect a properly working mouse to the computer then try using the mouse Check the mouse settings Windows XP 1 Click Start Control Panel gt Mouse 2 Adjust the settings as needed Windows Vista 1 Click Start Control Panel Hardware and Sound Mouse 2 Adjust the settings as needed Reinstall the mouse driver Run the Hardware Troubleshooter See Hardware Troubleshooter Network Problems A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance Check the network cable connector Ensure that the network cable is firmly inserted into the network connector on the back of the computer and the network jack Check the network lights on the back of the computer If the link integrity light is off no network communication is occurring Replace the network cable Restart the computer and log on to the network aga
28. avoid damage ensure that the processor aligns properly with the socket and do not use excessive force when you install the processor 7 Set the processor lightly in the socket and ensure that the processor is positioned correctly 8 When the processor is fully seated in the socket close the processor cover Ensure that the tab on the processor cover is positioned underneath the center cover latch on the socket 9 Pivot the socket release lever back toward the socket and snap it into place to secure the processor 10 Clean the thermal grease from the bottom of the heat sink A CAUTI ON Ensure that you apply new thermal grease New thermal grease is critical for ensuring adequate thermal bonding which is a requirement for optimal processor operation 11 Apply the new thermal grease to the top of the processor 12 Install the heat sink assembly a Place the heat sink assembly back onto the heat sink assembly bracket b Rotate the heat sink assembly down towards the computer base and tighten the two captive screws CAUTION Ensure that the heat sink is correctly seated and secure heat sink assembly heat sink assembly bracket 13 Route the floppy drive cable through the securing tab on the heat sink and connect it to the system board 14 Replace the optical drive see Optical Drive 15 Replace the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page Dell OptiPle
29. base on the side opposite the release lever 1 heat sink 2 retention base 3 release 10 Lower the heat sink onto the processor at a 45 degree angle so that one end of the heat sink fits securely under the tab opposite the release tab on the retention base 11 Re assemble the shroud 12 Replace the computer cover see Replacing the Computer Cover 13 Replace the cable cover if used see Attaching the Cable Cover Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Chassis Intrusion Switch Chassis Intrusion Switch WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance Removing the Chassis Intrusion Switch 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Disconnect the chassis intrusion switch cable from the system board by using two fingers to squeeze the release mechanism on one side of the connector as you pull to disconnect the cable connector 4 Slide the chassis intrusion switch out of its slot in the metal bracket and then push it down through the square hole in the bracket to remove the switch and its attached cable from the computer K NOTE You may feel a slight resistance as you slide the switch
30. cable press in on the locking tabs before you disconnect the cable As you pull connectors apart keep them evenly aligned to avoid bending any connector pins Also before you connect a cable ensure that both connectors are correctly oriented and aligned A CAUTI ON To avoid damaging the computer perform the following steps before you begin working inside the computer 1 Ensure that the work surface is flat and clean to prevent the computer cover from being scratched 2 Turn off your computer see Turning Off Your Computer A CAUTI ON To disconnect a network cable first unplug the cable from your computer and then unplug the cable from the network device 3 Disconnect all telephone or network cables from the computer 4 Disconnect your computer and all attached devices from their electrical outlets 5 Press and hold the power button while the system is unplugged to ground the system board CAUTI ON Before touching anything inside your computer ground yourself by touching an unpainted metal surface such as the metal at the back of the computer While you work periodically touch an unpainted metal surface to dissipate static electricity which could harm internal components Turning Off Your Computer A CAUTI ON To avoid losing data save and close all open files and exit all open programs before you turn off your computer 1 Shut down the operating system 2 Ensure that the computer and all attached devices are turned o
31. cables over the cards Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment 8 Secure any remaining card s by closing the card retention latch and snapping it into place 9 Replace the computer cover see Replacing the Computer Cover 10 Uninstall the card s driver See the documentation that came with the card for instructions 11 If you removed a sound card a Enter system setup select System Configuration gt Miscellaneous Devices and change the Audio setting to Enabled see Entering System Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headphone or line in connectors on the back panel of the computer 12 If you removed a network adapter card and want to turn on the integrated network adapter a Enter system setup select System Configuration gt Integrated NIC and change the setting to Enabled see Entering System Setup b Connect the network cable to the integrated the back panel of the computer PCI Express and DVI Cards Your computer supports one low profile PCI Express x16 card If you are replacing a PCI Express card with a different type of PCI Express card remove the current driver for the card from the operating system See the documentation that came with the card for information Installing a PCI Express x16 Card or DVI Card 1 Follow the procedures i
32. clicks into place 1 media card reader 2 slot verification number 5 Connect the cable to the media card reader and system board connector 6 Replace the optical drive see Optical Drive 7 Check all cable connections and fold cables out of the way to provide airflow for the fan and cooling vents 8 Replace the computer cover see Replacing the Computer Cover 9 Verify that your computer works correctly by running the Dell Diagnostics see Dell Diagnostics Hard Drive WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover CAUTION To avoid damage to the drive do not set it on a hard surface I nstead set the drive on a surface such as a foam pad that will sufficiently cushion it Removing a Hard Drive A CAUTI ON If you are replacing a hard drive that contains data you want to keep back up your files before you begin this procedure 1 Check the documentation for the drive to verify that it is configured for your computer 2 Follow the procedures in Working on Your Computer 3 Remove the computer cover see Removing the Computer Cover NOTE Since the following steps do not require the
33. complete removal of the optical drive and the floppy drive it is not necessary to disconnect the cables connecting the two drives 4 Remove the optical drive from the bay and carefully set it aside see Optical Drive 5 Remove the floppy drive from the 3 5 inch bay and carefully set it aside see Floppy Drive 6 Press in on the two plastic securing clips on each side of the drive and slide the drive towards the back of the computer A CAUTI ON Do not pull the drive out of the computer by the drive cables Doing so may cause damage to cables and the cable connectors 7 Lift the drive out of the computer and disconnect the power and data cables from the drive securing clips 2 Installing a Hard Drive 1 Check the documentation for the drive to verify that it is configured for your computer A CAUTI ON To avoid damage to the drive do not set it on a hard surface I nstead set the drive on a surface such as a foam pad that will sufficiently cushion it 2 Unpack the replacement hard drive and prepare it for installation 3 If your replacement hard drive does not have the plastic hard drive bracket attached remove the bracket from the existing drive by unsnapping it from the drive 1 hard drive 2 release tabs 2 securing tabs 2 3 screws 4 Jal plastic hard drive bracket 5 Connect the power and data cables to the drive 6 Locate the correct slot for the drive and slide the drive into the bay unt
34. detaches When connecting and disconnecting a cable without a pull tab hold the cable by the black connector at each end Eau o DA SS he M a Drive I nserts Your computer will come with a plastic insert with shoulder screws and a metal insert Removing Drive I nserts If you are installing a new drive 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Lift the drive release latch 4 Slide the metal bracket toward the back of the computer and lift up 1 metal insert 5 Press the release tabs on the plastic insert and press from behind to remove 1 shoulder screws 2 plastic drive insert Replacing Drive Inserts If you are removing a drive and need to replace the inserts 1 Place the plastic insert over the opening and press the insert tab down until the plastic insert snaps into place 2 Slide the metal bracket toward the front of the computer and click into place 3 Replace the computer cover see Replacing the Computer Cover Optical Drive WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover NOTE
35. hard drive bracket 6 Gently lift to remove the fan from the hard drive bracket 7 Disconnect the fan cable from the FAN_HDD connector on the system board fen release tab 4 ton fede te Replacing the Hard Drive Fan 1 Connect the hard drive fan cable to the FAN_HDD connector on the system board 2 Align the release tab and the four side tabs on the fan with the five corresponding slots on the hard drive bracket 3 Slide the release tab beneath the metal housing covering its slot and then slide the fan towards the back of the computer 4 Replace the screw that secures the fan release tab to the hard drive bracket 5 Replace the hard drive see Installing a Hard Drive 6 Replace the computer cover see Replacing the Computer Cover 7 Replace the cable cover if used Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual System Fans System Fans WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis Removing the System Fans 1 Follow the
36. in even intervals to open the Boot Device Menu If you wait too long and the operating system logo appears continue to wait until you see the Microsoft Windows desktop then shut down your computer and try again 4 When the boot device list appears use the up or down arrow keys to highlight CD DVD CD RW Drive then press lt Enter gt NOTE Using the one time boot menu changes the boot sequence for the current boot only Upon restart the computer boots according to the boot sequence specified in System Setup 5 Press any key to confirm that you want to start from the CD DVD If you wait too long and the operating system logo appears continue to wait until you see the Microsoft Windows desktop then shut down your computer and try again 6 Type 1 to Run the 32 Bit Dell Diagnostics 7 At the Dell Diagnostics Menu type 1 to select Dell 32 bit Diagnostics for Resource CD graphical user interface 8 Press lt Tab gt to select Test System and then press lt Enter gt NOTE It is recommended that you select Test System to run a complete test on your computer Selecting Test Memory initiates the extended memory test which can take up to thirty minutes or more to complete When the test completes record the test results and then press any key to return to the previous menu 9 At the Dell Diagnostics Main Menu left click with the mouse or press lt Tab gt and then lt Enter gt to select the test you want to run see Dell Diagn
37. is located on a network in a directory and the system administrator has assigned rights only to specific individuals refresh rate The frequency measured in Hz at which your screen s horizontal lines are recharged sometimes also referred to as its vertical frequency The higher the refresh rate the less video flicker can be seen by the human eye resolution The sharpness and clarity of an image produced by a printer or displayed on a monitor The higher the resolution the sharper the image RFI radio frequency interference Interference that is generated at typical radio frequencies in the range of 10 kHz to 100 000 MHz Radio frequencies are at the lower end of the electromagnetic frequency spectrum and are more likely to have interference than the higher frequency radiations such as infrared and light ROM read only memory Memory that stores data and programs that cannot be deleted or written to by the computer ROM unlike RAM retains its contents after you shut down your computer Some programs essential to the operation of your computer reside in ROM RPM revolutions per minute The number of rotations that occur per minute Hard drive speed is often measured in rpm RTC real time clock Battery powered clock on the system board that keeps the date and time after you shut down the computer RTCRST real time clock reset A jumper on the system board of some computers that can often be used for tr
38. network cable plugged into the integrated network adapter K NOTE Power is supplied to the DIMMs even when the computer is turned off Accessing iAMT setup Intel s Management Engine BIOS Extension MEBx interface controls the iAMT features and setup options for your computer MEBx is used to Turn on or off iAMT Set iAMT modes Set iAMT configuration modes To view the MEBx setup screen press lt Ctrl gt lt p gt during the boot process of your computer when you turn it on Your default MEBx password is admin K NOTE To make configuration setting changes the default MEBx password must be changed Turning Off iAMT iAMT is enabled in the Management Engine ME firmware by default However you may choose to turn off the iAMT feature To turn off iAMT 1 Press lt Ctrl P gt to enter the MEBx setup and enter your password 2 Select Intel ME Configuration Intel ME Features Control Manageability Feature Selection 3 Select None 4 Select Return to Previous Menu twice Changes are applied and the computer reboots USB Provisioning iAMT can be provisioned using a USB key and Dell Client Manager The USB key must Be formatted using the FAT16 file system with no system files Contain only the setup bin file E NOTE The key should not be bootable To provision AMT using a USB key plug the USB key into a USB port prior to boot During POST the BIOS displays a message stating that the computer is b
39. o Remove and then reinstall any cards See the following o Mini Tower Cards o Desktop Cards o Small Form Factor Cards Eliminate interference Some possible causes of interference are o Power keyboard and mouse extension cables o Too many devices on a power strip o Multiple power strips connected to the same electrical outlet Diagnostic Lights A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance To help troubleshoot a problem your computer has four lights labeled 1 2 3 and 4 on the front panel K NOTE If you are using an ultra form factor computer the diagnostic lights are present on the back panel See the Setup and Quick Reference Guide that ships with your computer for more information When the computer starts normally the lights flash and then turn off If the computer malfunctions use the sequence of the lights to help identify the problem K NOTE After the computer completes POST all four lights turn off before booting to the operating system Diagnostic Light Codes During POST Light Pattern Problem Description Suggested Resolution 0919010 The computer is either turned off or Reseat the power cable in the power connector on the back of the computer and the not receiving power electrical outlet Byp
40. set it on a hard surface I nstead set the drive on a surface such as a foam pad that will sufficiently cushion it Removing the Hard Drive 1 Follow the procedures in Working on Your Computer Remove the computer cover see Removing the Computer Cover 3 Disconnect the power and data cables from the hard drive 4 Press the plastic drive rails towards each other and slide the drive slightly forward 5 Rotate the hard drive up and away from the computer 1 drive rails 2 data cable connector power cable connector Installing a Hard Drive 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 If you are installing a new drive rather than replacing an already installed drive a Check the documentation for the drive to verify that the drive is configured for your computer b Attach the plastic drive rails located inside the cover to the new drive and skip to step 6 femo A CAUTI ON If you are replacing a hard drive that contains data you want to keep back up your files before you begin this procedure 4 Remove the installed hard drive see Removing the Hard Drive 5 Remove the four screws that secure the drive rails to the existing hard drive and attach the drive rails to the replacement hard drive A CAUTI ON Serial ATA data and power connectors are keyed for correct insertion that is a notch or a missing pin on one connector matc
41. so as to align the tabs with the slots on the computer s back panel 4 Insert the tabs into the slots and slide the cover to align the ends of the cover with the ends of the chassis see the illustration until the cable cover is securely positioned 5 Install a security device in the security cable slot optional security cable slot Removing the Cable Cover 1 Ifa security device is installed in the security cable slot remove the device release button 2 Slide the release button grasp the cable cover and slide the cover sideways as shown until it stops and then lift the cable cover up and away Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Heat Sink and Processor Heat Sink and Processor WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the cover A CAUTI ON When replacing the processor do not touch the underside of the new processor A CAUTI ON When replacing the processor do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket Removing the Processor 1 Follow the procedures in Working on Your Computer 2 Remove the
42. system board 6 Remove the screws from the system board Mini tower see Mini Tower System Board Screws Desktop see Desktop System Board Screws Small form factor see Small Form Factor System Board Screws Ultra small form factor see Ultra Small Form Factor System Board Screws 7 Slide the system board assembly toward the front of the computer and then lift the board up and away 8 If you are replacing the system board place the system board assembly that you just removed next to the replacement system board to ensure it is identical Mini Tower System Board Screws Desktop System Board Screws Small Form Factor System Board Screws ae 7 Hite ietiteiittiinie 1 screws 9 Ultra Small Form Factor System Board Screws screws 10 Replacing the System Board NOTE The system board is shipped in manufacturing mode The user or service provider must select the manageability option upon first boot See Manageability on how to select the manageability mode m Gently align the board into the chassis and slide it toward the back of the computer 2 Replace the screws on the system board 3 Replace any components and cables that you removed from the system board 4 Reconnect all cables to their connectors at the back of the computer 5 Replace the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page System Setup Dell OptiPlex
43. the bottom of the heat sink A CAUTI ON Ensure that you apply new thermal grease New thermal grease is critical for ensuring adequate thermal bonding which is a requirement for optimal processor operation 11 Apply the new thermal grease to the top of the processor 12 Install the heat sink assembly see Installing the Heat Sink Assembly 13 Replace the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Chassis Intrusion Switch Chassis Intrusion Switch WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance K NOTE The chassis intrusion switch is standard on the ultra small form factor computer but is optional on mini tower desktop and small form factor computers it may not be present on your computer Removing the Chassis I ntrusion Switch 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Press the chassis intrusion switch cable connector release mechanism and pull the cable connector to disconnect the chassis intrusion switch cable from the system board 4 Slide the chassis intrusion switch out of its slot in the metal bracket and then push it down through the square hole in the
44. the data unit size or stripe width DMA direct memory access A channel that allows certain types of data transfer between RAM and a device to bypass the processor docking device See APR DMTF Distributed Management Task Force A consortium of hardware and software companies who develop management standards for distributed desktop network enterprise and Internet environments domain A group of computers programs and devices on a network that are administered as a unit with common rules and procedures for use by a specific group of users A user logs on to the domain to gain access to the resources DRAM dynamic random access memory Memory that stores information in integrated circuits containing capacitors driver Software that allows the operating system to control a device such as a printer Many devices do not work properly if the correct driver is not installed in the computer DSL Digital Subscriber Line A technology that provides a constant high speed Internet connection through an analog telephone line dual core An Intel technology in which two physical computational units exist inside a single processor package thereby increasing computing efficiency and multi tasking ability dual display mode A display setting that allows you to use a second monitor as an extension of your display Also referred to as extended display mode DVD R DVD recordable A recordable version
45. the drive out of the computer by the drive cables Doing so may cause damage to cables and the cable connectors 4 Press in on the two blue securing tabs on each side of the drive and lift the drive up and away from the computer careful not to pull the cables still attached to it securing tabs 2 5 Disconnect the power and data cable from the hard drive 6 Disconnect the data cable from the system board 7 Disconnect the hard drive fan cable from the system board and set the hard drive aside data cable Installing a Hard Drive 1 Check the documentation for the drive to verify that it is configured for your computer A CAUTI ON To avoid damage to the drive do not set it on a hard surface I nstead set the drive on a surface such as a foam pad that will sufficiently cushion it 2 Unpack the replacement hard drive and prepare it for installation 3 If your replacement hard drive does not have the plastic drive bracket attached remove the bracket from the existing drive by unsnapping it from the drive 1 release tabs 2 2 hard drive afardarve racket 4 Connect the hard drive fan cable to the system board 5 Connect the power and data cables to the hard drive 6 Connect the data cable to the system board 1 power cable 2 data cable 7 Check all connectors to ensure that they are properly cabled and firmly seated 8 Align the hard drive tab with the chassis and gently position
46. the electrical outlet The computer stops responding A CAUTI ON You may lose data if you are unable to perform an operating system shutdown Turn the computer off If you are unable to get a response by pressing a key on your keyboard or moving your mouse press and hold the power button for at least 8 to 10 seconds until the computer turns off and then restart your computer A program stops responding End the program Press lt Ctrl gt lt Shift gt lt Esc gt simultaneously to access the Task Manager Click the Applications tab Click to select the program that is no longer responding Click End Task Pa A program crashes repeatedly K NOTE Most software includes installation instructions in its documentation or on a floppy disk CD or DVD Check the software documentation If necessary uninstall and then reinstall the program A program is designed for an earlier Windows operating system Run the Program Compatibility Wizard Windows XP The Program Compatibility Wizard configures a program so that it runs in an environment similar to non XP operating system environments 1 Click Start All Programs Accessories gt Program Compatibility Wizard Next 2 Follow the instructions on the screen Windows Vista The Program Compatibility Wizard configures a program so that it runs in an environment similar to non Windows Vista operating system environments 1 Click Start Control Panel
47. the power supply button If the light illuminates there could be a problem with the system board If the power supply diagnostic light still does not illuminate the problem is probably with the power supply Contact Dell see Contacting Dell 0000 No CPU present Reinstall the processor and restart the system If the computer still fails to boot inspect the processor socket for damage If the problem persists contact Dell see Contacting Dell Steady Amber oo Memory modules are detected but a If two or more memory modules are installed remove the modules then reinstall one memory power failure has occurred module and restart the computer If the computer starts normally continue to install additional memory modules one at a fe time until you have identified a faulty module or reinstalled all modules without error If only one memory module is installed try moving it to a different DIMM connector and Steady Amber restart the computer If available install verified working memory of the same type into your computer If the problem persists contact Dell see Contacting Dell Q A possible CPU or motherboard Replace the processor with a known good processor If the computer still fails to boot failure has occurred inspect the processor socket for damage If the problem persists contact Dell see Contacting Dell Steady Amber Q BIOS may be corrupt or missing Steady Amber 0O Steady Amb
48. two cables a DC power cable and a data interface cable to the back of the drive Data I nterface Connectors Serial ATA SATA Connector 1 data interface cable connector 2 data interface connector Power Cable Connectors Te Connecting and Disconnecting Drive Cables When removing an cable with a pull tab grasp the colored pull tab and pull until the connector detaches When connecting and disconnecting a SATA data cable hold the cable by the black connector at each end Hard Drive A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover A CAUTI ON To avoid damage to the drive do not set it on a hard surface I nstead set the drive on a surface such as a foam pad that will sufficiently cushion it Removing a Hard Drive FaN CAUTI ON If you are replacing a hard drive that contains data you want to keep back up your files before you begin this procedure 1 Check the documentation for the drive to verify that it is configured for your computer 2 Follow the procedures in Working on Your Computer 3 Remove the computer cover see Removing the Computer Cover ras CAUTI ON Do not pull
49. 760 Service Manual Overview Entering System Setup System Setup Options Boot Sequence Booting to a USB Device Password Protection Jumper Settings Clearing Forgotten Passwords Clearing CMOS Settings Deploying Citrix Provisioning Server Dell With Client Static IP Configuration Overview Use System Setup as follows To change the system configuration information after you add change or remove any hardware in your computer To set or change a user selectable option such as the user password To read the current amount of memory or set the type of hard drive installed Before you use System Setup it is recommended that you write down the System Setup screen information for future reference CAUTION Unless you are an expert computer user do not change the settings for this program Certain changes can make your computer work incorrectly Entering System Setup 1 Turn on or restart your computer 2 When the DELL logo is displayed you must watch for the Fi2 prompt to appear 3 Once the F12 prompt appears press lt F12 gt immediately The Boot Menu appears 4 Use the up and down arrow keys to select System Setup and then press lt Enter gt NOTE The F12 prompt indicates that the keyboard has initialized This prompt can appear very quickly so you must watch for it to display and then press lt F12 gt If you press lt F12 gt before you are prompted this keystroke will be lost 5 If you wait too lo
50. AR guidelines for energy efficiency Models DCTR DCNE DCSM and DCCY February 2009 Rev A01 Back to Contents Page Back to Contents Page System Board Dell OptiPlex 760 Service Manual Removing the System Board Replacing the System Board WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance Removing the System Board 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover CAUTION Before touching anything inside your computer ground yourself by touching an unpainted metal surface such as the metal at the back of the computer While you work periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components 3 Remove any components that restrict access to the system board optical drive s floppy drive hard drive hard drive bracket I O panel as applicable K NOTE If you are using an ultra small form factor computer you must remove the system board sled and fan see Removing the System Fans 4 Remove the processor and heat sink assembly Mini tower see Heat Sink and Processor Desktop see Processor Small form factor see Heat Sink and Processor Ultra small form factor see Heat Sink and Processor 5 Disconnect all cables from the
51. AUTI ON indicates potential damage to hardware or loss of data if instructions are not followed A WARNING A WARNING indicates a potential for property damage personal injury or death If you purchased a Dell n Series computer any references in this document to Microsoft Windows operating systems are not applicable Information in this document is subject to change without notice 2008 2009 Dell Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo OptiPlex TravelLite OpenManage and StrikeZone are trademarks of Dell Inc Intel and SpeedStep are registered trademarks of Intel Corporation in the U S and other countries Microsoft Windows Windows Vista and the Windows Start button are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Computrace is a registered trademark of Absolute Software Corp Citrix is a registered trademarks of Citrix Systems Inc and or one or more of its subsidiaries and may be registered in the United States Patent and Trademark Office and in other countries Bluetooth is a trademark owned by Bluetooth SIG Inc and is used by Dell Inc under license ENERGY STAR is a registered trademark of the U S Environmental Protection Agency As an ENERGY STAR partner Dell Inc has determined that this product meets the ENERGY ST
52. Before closing the card retention latch ensure that The tops of all cards and filler brackets are flush with the alignment guide The notch in the top of the card or filler bracket fits around the alignment guide 9 Secure the card s by closing the card retention latch and snapping it into place CAUTION Do not route card cables over the cards Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment 10 Connect any cables that should be attached to the card 11 Replace the computer cover see Replacing the Computer Cover K NOTE See the documentation that came with the card regarding the card s cable connections 12 If you installed a sound card a Enter system setup select System Configuration Miscellaneous Devices and change the Audio setting to Disabled see Entering System Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headphone or line in connectors on the back panel of the computer A CAUTI ON If you disable the integrated network adapter you will not have AMT functionality 13 If you installed a network adapter card and want to turn off the integrated network adapter a Enter system setup select System Configuration Integrated NIC and change the setting to Disabled see Entering System Setup A CAUTI ON To connect a network cable first plug the
53. Card that extends beyond the edge of the PC Card slot when installed F Fahrenheit A temperature measurement scale where 32 is the freezing point and 212 is the boiling point of water FBD fully buffered DIMM A DIMM with DDR2 DRAM chips and an Advanced Memory Buffer AMB that speeds communication between the DDR2 SDRAM chips and the system FCC Federal Communications Commission A U S agency responsible for enforcing communications related regulations that state how much radiation computers and other electronic equipment can emit fingerprint reader A strip sensor that uses your unique fingerprint to authenticate your user identity to help secure your computer folder A term used to describe space on a disk or drive where files are organized and grouped Files in a folder can be viewed and ordered in various ways such as alphabetically by date and by size format The process that prepares a drive or disk for file storage When a drive or disk is formatted the existing information on it is lost FSB front side bus The data path and physical interface between the processor and RAM FTP file transfer protocol A standard Internet protocol used to exchange files between computers connected to the Internet G G gravity A measurement of weight and force GB gigabyte A measurement of data storage that equals 1024 MB 1 073 741 824 bytes When used to refer to hard drive stor
54. Dell OptiPlex 760 Service Manual Mini Tower Computer Desktop Computer Small Form Factor Computer Ultra Small Form Factor Computer Back to Contents Page Advanced Features Dell OptiPlex 760 Service Manual LegacySelect Technology Control Manageability Physical Security Trusted Platform Module TPM Security Management Software Computer Tracking Software About Smart Cards and Fingerprint Readers Hyperthreading and Multi Core Technology Power Management for Windows XP and Windows Vista LegacySelect Technology Control LegacySelect technology control offers legacy full legacy reduced or legacy free solutions based on common platforms hard drive images and help desk procedures Control is provided to the administrator through system setup Dell OpenManage IT Assistant or Dell custom factory integration LegacySelect allows administrators to electronically activate or deactivate connectors and media devices that include serial and USB connectors a parallel connector a floppy drive PCI slots and a PS 2 mouse Connectors and media devices that are deactivated make resources available You must restart the computer to effect the changes Manageability DASH DASH Desktop and mobile Architecture for System Hardware is a Desktop Management Task Force DMTF management initiative that standardizes the manageability interfaces for mobile and desktop hardware The focus of the DASH architecture is to enable
55. Disconnect any cables that will not reach the riser card cage once they are removed from the computer b Rotate the riser card cage handle up and gently pull on the handle to lift the riser card cage up and away from the computer riser card cage 2 handle 1 3 frisercards a o o S 4 Gently lift the release tab on the card retention latch from the inside to pivot the latch open Pivot the latch until it snaps into the open position 5 If you are installing a new PS 2 serial port adapter remove the filler bracket to create an empty card slot opening 6 If you are replacing a PS 2 adapter that is already installed in the computer remove the adapter 7 If necessary disconnect any cables connected to the adapter A WARNING To guard against electrical shock be sure to unplug your computer from its electrical outlet before installing any cards or adapters 8 Align the PS 2 serial port adapter bracket in the retention slot and press down firmly Ensure that the adapter is fully seated in the slot 9 Before you close the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 10 Secure the card s by closing the card retention latch and snapping it into place A CAUTI ON Do not route card cables over the cards Cables routed over the cards can prevent the computer cover from closing p
56. Express x16 card slot K NOTE Your Dell computer uses only PCI and PCI Express slots ISA cards are not supported PCI Cards 7 Installing a PCI Card 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover K NOTE For PCI card locations see System Board Components 3 Gently lift the release tab on the card retention latch from the inside and pivot the latch open card retention latch card a card edge connector card connector 4 If you are installing a new card remove the filler bracket to create a card slot opening Then continue with step 6 5 If you are replacing a card that is already installed in the computer remove the card If necessary disconnect any cables connected to the card Then continue with step 6 6 Prepare the card for installation WARNING Some network adapters automatically start the computer when they are connected to a network To guard against electrical shock be sure to unplug your computer from its electrical outlet before installing any cards NOTE See the documentation that came with the card for information on configuring the card making internal connections or customizing it for your computer 7 Place the card in the connector and press down firmly Ensure that the card is fully seated in the slot card fully seated card not fully seated S bracket within slot a bracket caught outside of slot 8
57. If you will be operating your computer without an optical drive or a 3 5 inch device floppy drive or media card reader installed the appropriate drive bay insert must be installed in place of the drive Contact Dell if you need a drive bay insert See Removing Drive Inserts Removing an Optical Drive 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover A CAUTI ON Do not pull the drive out of the computer by the drive cables Doing so may cause damage to cables and the cable connectors 3 Pull up on the drive release latch and slide the drive towards the back of the computer Then lift up to remove the drive from the computer 1 drive release latch 2 optical drive 4 Disconnect the power and data cables from the back of the drive 5 If you are not replacing the optical drive at this time install the optical drive insert by lowering it into the drive bay until it clicks into place Contact Dell if you need a drive bay insert Installing an Optical Drive 1 Unpack the drive and prepare it for installation Check the documentation that accompanied the drive to verify that the drive is configured for your computer 2 Follow the procedures in Working on Your Computer 3 If you are installing a new drive remove the drive inserts and then remove the three shoulder screws see Removing Drive Inserts If you are replacing an existing drive follow procedures
58. NERGY STAR is a registered trademark of the U S Environmental Protection Agency As an ENERGY STAR partner Dell Inc has determined that this product meets the ENERGY STAR guidelines for energy efficiency Models DCTR DCNE DCSM and DCCY February 2009 Rev A01 Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Cards Cards WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintains the airflow that cools your computer Your Dell computer supports a PS 2 serial port adapter and provides the following connectors for PCI and PCI Express cards Two PCI card slots One PCI Express x16 card slot One PCI Express x1 card slot PCI Express x16 card securing tab only for PCI Express cards PCI Express x16 card slot 4 PCI Express x1 card Installing a PCI or PCI Express Card
59. O Security Administrative Provides restricted access to the computer s system setup program in the same way that access to the system can be restricted Password with the System Password option This option is not set by default System Password Displays the current status of the system s password security feature and allows a new system password to be assigned and verified This option is not set by default Password Changes Enables or disables the user from changing the system password without the administrative password This option is enabled by default TPM Security Enables or disables the trusted platform module TPM security You can set the TPM security to Deactivate default Activate Clear NOTE When TPM Security is set to Clear the system setup program clears the user information stored in the TPM CPU XD Support Enables or disables the execute disable mode of the processor This option is enabled by default Comput race R Enables or disables the optional Computrace service designed for asset management You can set this option to Deactivate default Disable Activate SATA 0 Password Displays the current status of the password set for the hard drive connected to the SATA 0 connector on the system board You can also set a new password This option is not set by default NOTE The system setup program displays a password for each of the hard drives connected to your system board
60. OTE You can use Password Status in conjunction with System Password and Admin Password to further protect your computer from unauthorized changes Deleting or Changing an Existing System Password 1 Enter system setup see Entering System Setup 2 Go to Security gt System Password and press lt Enter gt 3 When prompted type the system password 4 Press lt Enter gt twice to clear the existing system password The setting changes to Not Set If Not Set is displayed the system password is deleted If Not Set is not displayed press lt Alt gt lt b gt to restart the computer and then repeat steps 3 and 4 5 To assign a new password follow the procedure in Assigning a System Password 6 Exit system setup Administrator Password Option Settings You cannot change or enter a new administrator password if either of the following two options is displayed Set An administrator password is assigned Disabled The administrator password is disabled by a jumper setting on the system board You can only assign an administrator password when the following option is displayed Not Set No administrator password is assigned and the password jumper on the system board is in the enabled position the default setting Assigning an Administrator Password The administrator password can be the same as the system password NOTE If the two passwords are different the administrator password can be used as an alter
61. Power Management AC Recovery Determines how the system responds when AC power is re applied after a power loss You can set the AC Recovery to Power Off default Power On Last State Auto On Time Sets time to automatically turn on the computer Time is kept in the standard 12 hour format hours minutes seconds Change the startup time by typing the values in the time and AM PM fields NOTE This feature does not work if you turn off your computer using the switch on a power strip or surge protector or if Auto Power On is set to disabled Low Power Mode Enables or disables low power mode This option is disabled by default NOTE When low power mode is enabled the integrated network card is disabled Remote Wakeup Allows the system to power up when a network interface controller receives a wake up signal You can set Remote Wakeup to Disable default Enable Enable with Boot NIC Suspend Mode Sets the power management suspend mode to S1 S3 default Fan Control Controls the speed of the system fan Override NOTE When enabled the fan runs at full speed Maintenance Service Tag Displays the Service Tag of your computer Asset Tag Allows you to create a system asset tag if an asset tag is not already set This option is not set by default ERR Messages Controls the SERR Message mechanism This option is enabled by default Some graphics cards require the SERR Message mecha
62. Removing a Hard Drive 7 Disconnect the media card reader cable from the system board media card reader cable INT_USB connector on the system board Pull the drive release latch and slide the media card reader towards the back of the computer Then lift up to remove the media card reader from the computer 9 Replace the hard drive see Installing a Hard Drive 10 Replace the computer cover see Replacing the Computer Cover Installing a Media Card Reader 1 media card reader 2 screws 3 1 If you are replacing a media card reader remove the installed media card reader see Removing a Media Card Reader and skip to step 3 2 If you are installing a new media card reader perform the following steps before continuing to step 3 a Follow the procedures in Working on Your Computer b Remove the computer cover see Removing the Computer Cover C Lay the computer on its side so that the system board is on the bottom of the inside of the computer d Remove the drive panel insert 3 Align the screws on the media card reader with the bracket slots in the computer and gently position the drive until it clicks into place 4 Connect the cable into the connectors on the media card reader and INT_USB connector on the system board 1 media card reader data cable 2 NT_USB connector on the system board 5 Replace the optical drive see Optical Drive 6 Check all cable connections and fold cables out o
63. Replacing the Computer Cover Installing an Optical Drive 1 Unpack the drive and prepare it for installation 2 Check the documentation that accompanied the drive to verify that the drive is configured for your computer 3 Follow the procedures in Working on Your Computer 4 Remove the computer cover see Removing the Computer Cover 5 Connect the power and data cable to the drive 1 optical drive 2 data cable 3 power cable 6 Connect the data cable to the system board optical drive data cable 7 Gently position the drive until it clicks into place 8 Check all cable connections and fold cables out of the way to provide airflow for the fan and cooling vents 9 Replace the computer cover see Replacing the Computer Cover 10 See the documentation that came with the drive for instructions on installing any software required for drive operation 11 Enter system setup and select the appropriate Drive option see Entering System Setup 12 Verify that your computer works correctly by running the Dell Diagnostics see Dell Diagnostics Floppy Drive WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing
64. TA3 Hard drives must be connected to the lower numbered SATA connectors while any other SATA devices like an optical drive must be connected to the remaining SATA connectors numbered higher than the one that the hard drive s is connected to For example if you have two SATA hard drives and one SATA optical drive connect the two hard drives to the SATAO and SATA1 connectors and connect the SATA optical drive to the SATA2 connector See System Board Components for the location of SATA connectors on the system board Connecting Drive Cables When you install a drive you connect two cables a DC power cable and a data interface cable to the back of the drive Data I nterface Connectors SATA Connector data interface cable connector data interface connector Power Cable Connectors 1 power cable 2 power input connector Connecting and Disconnecting Drive Cables When removing a cable with a pull tab grasp the colored pull tab and pull until the connector detaches When connecting and disconnecting a cable without a pull tab hold the cable by the black connector at each end Hard Drive A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical out
65. The device list may not display the names of all components installed on your computer or all devices attached to your computer Parameters Allows you to customize the test if applicable by changing the test settings Solving Problems Follow these tips when troubleshooting your computer If you added or removed a part before the problem started review the installation procedures and ensure that the part is correctly installed If a peripheral device does not work ensure that the device is properly connected If an error message appears on the screen write down the exact message This message may help support personnel diagnose and fix the problem s If an error message occurs in a program see the program s documentation K NOTE The procedures in this document were written for the Windows default view so they may not apply if you set your Dell computer to the Windows Classic view Battery Problems A WARNING There is a danger of a new battery exploding if it is incorrectly installed Replace the battery only with the same or equivalent type recommended by the manufacturer Discard used batteries according to the manufacturer s instructions A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance Replace the battery
66. To set standby mode to automatically activate after a defined period of inactivity 1 Click Start Control Panel gt Pick a category Performance and Maintenance 2 Under or pick a Control Panel icon click Power Options To immediately activate standby mode without a period of inactivity click Start gt Turn Off Computer Stand by To exit from standby mode press a key on the keyboard or move the mouse Hibernate Mode Hibernate mode conserves power by copying system data to a reserved area on the hard drive and then completely turning off the computer When the computer exits from hibernate mode the desktop is restored to the state it was in prior to entering hibernate mode To activate hibernate mode 1 Click Start Control Panel gt Pick a category Performance and Maintenance 2 Under or pick a Control Panel icon click Power Options 3 Define your hibernate settings on the Power Schemes tab Advanced tab and Hibernate tab To exit from hibernate mode press the power button The computer may take a short time to exit from hibernate mode Because the keyboard and mouse do not function in hibernate mode pressing a key on the keyboard or moving the mouse does not bring the computer out of hibernation Because hibernate mode requires a special file on your hard drive with enough disk space to store the contents of the computer memory Dell creates an appropriately sized hibernate mode file before shipping the comput
67. USB device Floppy Drive 1 In system setup set the Diskette Drive option to USB 2 Save and exit system setup 3 Connect the USB floppy drive insert a bootable floppy and re boot the computer Password Protection CAUTI ON Although passwords provide security for the data on your computer they are not foolproof If your data requires more security it is your responsibility to obtain and use additional forms of protection such as data encryption programs System Password CAUTI ON If you leave your computer running and unattended without having a system password assigned or if you leave your computer unlocked so that someone can disable the password by changing a jumper setting anyone can access the data stored on your hard drive Option Settings You cannot change or enter a new system password if either of the following two options is displayed Set A system password is assigned Disabled The system password is disabled by a jumper setting on the system board You can only assign a system password when the following option is displayed Not Set No system password is assigned and the password jumper on the system board is in the enabled position the default setting Assigning a System Password To exit without assigning a system password press lt Esc gt at any time before you press the OK button in step 4 1 Enter system setup see Entering System Setup 2 Select System Password and verify
68. WER FRONTPANEL SATA drive connectors SATA2 10 intrusion switch connector INTRUDER and SATA3 internal USB INT_USB service mode disable jumper 13 RTC reset jumper RTCRST PCI Express x16 connector SLOT1 15 PCI Express x1 connector 16 PCI connector SLOT2 SLOT3 SLOT4 17 battery socket BATTERY 18 PS 2 or serial connector SERIAL2 19 floppy connector DSKT fan FAN_CPU Back to Contents Page Back to Contents Page Replacing the Computer Cover Dell OptiPlex 760 Service Manual Mini Tower Desktop and Small Form Factor Ultra Small Form Factor WARNI NG Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance A CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis Mini Tower Desktop and Small Form Factor 1 Ensure that all cables are connected and fold cables out of the way Gently pull the power cables toward you so that they do not get caught underneath the drives 2 Ensure that no tools or extra parts are left inside the computer 3 To replace the cover a Align the bottom of the cover with the hinge tabs lo
69. Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently lift the release tab on the card retention latch from the inside to pivot the latch open Pivot the latch until it snaps into the open position 4 Disconnect the PS 2 serial port cable from the system board see System Board Components 5 Ease the PS 2 serial port adapter bracket out of its retention slot 6 If you are removing the adapter permanently install a filler bracket in the empty card slot opening K NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintain the airflow that cools your computer 7 Before you close the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 8 Secure any remaining card s by closing the card retention latch and snapping it into place 9 Replace the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Heat Sink and Processor Heat Sink and Processor WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage a
70. Your Hard Drive Before running the Dell Diagnostics enter System Setup see the Entering System Setup to review your computer s configuration information and ensure that the device you want to test is displayed in System Setup and is active The Dell Diagnostics is located on a separate diagnostic utility partition on your hard drive K NOTE If your computer does not display a screen image contact Dell see Contacting Dell 1 Ensure that the computer is connected to an electrical outlet that is known to be working properly 2 Turn on or restart your computer 3 When the DELL logo appears press lt F12 gt immediately NOTE Keyboard failure may result when a key is held down for extended periods of time To avoid possible keyboard failure press and release lt F12 gt in even intervals to open the Boot Device Menu If you wait too long and the operating system logo appears continue to wait until you see the Microsoft Windows desktop then shut down your computer and try again 4 Use the up and down arrow keys to select Diagnostics from the boot menu and then press lt Enter gt NOTE If you see a message stating that no diagnostics utility partition has been found run the Dell Diagnostics from your Drivers and Utilities media see Starting the Dell Diagnostics From the Drivers and Utilities Media 5 Press any key to start the Dell Diagnostics from the diagnostics utility partition on your hard drive 6 Press lt T
71. ab gt to select Test System and then press lt Enter gt NOTE It is recommended that you select Test System to run a complete test on your computer Selecting Test Memory initiates the extended memory test which can take up to thirty minutes or more to complete When the test completes record the test results and then press any key to return to the previous menu 7 At the Dell Diagnostics Main Menu left click with the mouse or press lt Tab gt and then lt Enter gt to select the test you want to run see Dell Diagnostics Main Menu K NOTE Write down any error codes and problem descriptions exactly as they appear and follow the instructions on the screen 8 After all tests have completed close the test window to return to the Dell Diagnostics Main Menu 9 Close the Main Menu window to exit the Dell Diagnostics and restart the computer Starting the Dell Diagnostics From the Drivers and Utilities Media Before running the Dell Diagnostics enter System Setup see Entering System Setup to review your computer s configuration information and ensure that the device you want to test is displayed in System Setup and is active 1 Insert the Drivers and Utilities media into the optical drive 2 Restart your computer 3 When the DELL logo appears press lt F12 gt immediately NOTE Keyboard failure may result when a key is held down for extended periods of time To avoid possible keyboard failure press and release lt F12 gt
72. ables the NumLock feature when your computer starts When enabled default this option activates the numeric and mathematical features shown at the top of each key When disabled this option activates the cursor control functions labeled on the bottom of each key POST Hotkeys Allows you to specify the function keys to display on the screen when the computer starts Enable F2 Setup enabled by default Enable F12 Boot menu enabled by default Keyboard Enables or disables keyboard error reporting when the computer starts Errors This option is enabled by default System Logs Events Displays the system event log and allows you to Clear Log Mark all Entries Boot Sequence This feature allows you to change the Boot Device Property for devices Option Settings Onboard USB Floppy Drive The computer attempts to boot from the floppy drive Onboard SATA Hard Drive The computer attempts to boot from the hard drive USB Device The computer attempts to boot from a removable device such as a USB key CD DVD The computer attempts to boot from the disc drive Changing the Boot Sequence for the Current Boot You can use this feature for example to restart your computer to a USB device such as a floppy drive memory key or optical drive 1 If you are booting to a USB device connect the USB device to a USB connector 2 Turn on or restart your computer 3 When
73. age the term is often rounded to 1 000 000 000 bytes GHz gigahertz A measurement of frequency that equals one thousand million Hz or one thousand MHz The speeds for computer processors buses and interfaces are often measured in GHz graphics mode A video mode that can be defined as x horizontal pixels by y vertical pixels by z colors Graphics modes can display an unlimited variety of shapes and fonts GUI graphical user interface Software that interacts with the user by means of menus windows and icons Most programs that operate on the Windows operating systems are GUIS H hard drive A drive that reads and writes data on a hard disk The terms hard drive and hard disk are often used interchangeably heat sink A metal plate on some processors that helps dissipate heat hibernate mode A power management mode that saves everything in memory to a reserved space on the hard drive and then turns off the computer When you restart the computer the memory information that was saved to the hard drive is automatically restored HTTP hypertext transfer protocol A protocol for exchanging files between computers connected to the Internet Hyperthreading hyperthreading is an Intel technology that can enhance overall computer performance by allowing one physical processor to function as two logical processors capable of performing certain tasks simultaneously Hz hertz A unit of frequency measu
74. ard drive fan a Align the triangle on the fans back panel with the triangle on the hard drive brackets back panel b Rotate the fan in the direction of the arrow on the back panel of the fan Install the hard drive see Installing a Hard Drive Replace the computer cover see Replacing the Computer Cover Optical Drive WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover Removing an Optical Drive 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover A CAUTI ON Do not pull the drive out of the computer by the drive cables Doing so may cause damage to cables and the cable connectors 3 Pull the drive release latch and slide the drive towards the back of the computer Then lift up to remove the drive from the computer 1 drive release latch 2 optical drive 4 Disconnect the power and data cable from the back of the drive 1 optical drive 2 data cable 3 power cable 5 Disconnect the data cable from the system board 1 optical drive 2 data cable 6 Remove the drive and replace the computer cover see
75. ass power strips power extension cables and other power protection devices to verify that the computer turns on properly Te Ensure that any power strips being used are plugged into an electrical outlet and are turned on Ensure that the electrical outlet is working by testing it with another device such as a lamp Ensure that the main power cable and front panel cable are securely connected to the off system board QQO A possible motherboard failure has Unplug the computer Allow a minute for the power to drain Plug the computer into a occurred working electrical outlet and press the power button If the problem persists contact Dell see Contacting Dell Off 000 A possible motherboard power Power off computer leaving the computer plugged in Press and hold the power supply test supply or peripheral failure has button on the back of the power supply unit occurred AN If the power supply diagnostic light next to the switch illuminates the problem may be with Ie your system board Contact Dell see Contacting Dell If the power supply diagnostic light next to the switch does not illuminate disconnect all Blinking Amber internal and external peripherals and press and hold the power supply test button If it illuminates there could be a problem with a peripheral Contact Dell see Contacting Dell If the power supply diagnostic light still does not illuminate disconnect the power supply from the system board then press and hold
76. ate the password PSWD and CMOS RTCRST jumpers on the system board see Password Protection b Remove the password jumper plug from its pins c Place the password jumper plug on the RTCRST pins and wait approximately 5 seconds d Remove the jumper plug from the RTCRST pins and place it back on the password pins 4 Replace the computer cover see Replacing the Computer Cover FaN CAUTI ON To connect a network cable first plug the cable into the network wall jack and then plug it into the computer 5 Connect your computer and devices to electrical outlets and turn them on Deploying Citrix Provisioning Server Dell With Client Static I P Configuration In a secure environment where no DHCP service exists to assign IP addresses to clients and allow the clients to boot to the Provisioning Server manually program static IP addresses for those clients in the system BIOS 1 During boot press lt F2 gt to open System Setup 2 Select I mageSever from the list of boot options 3 Set Client DHCP to Static IP 4 Select Accept in the window that opens asking you to confirm changing the Client DHCP option 5 Set the Client IP with your desired IP address The default is 255 255 255 255 6 Set the Client Subnet Mask to the address assigned to the client The default address is 255 255 255 255 7 Set the Client Gateway to the gateway address assigned to the client The default address is 255 255 255 255 8 Change the Lookup Metho
77. atibility Windows XP 1 Click Start Help and Support 2 Type hardware troubleshooter in the search field and press lt Enter gt to start the search 3 In the Fix a Problem section click Hardware Troubleshooter 4 In the Hardware Troubleshooter list select the option that best describes the problem and click Next to follow the remaining troubleshooting steps Windows Vista 1 Click the Windows Vista start button and click Help and Support 2 Type hardware troubleshooter in the search field and press lt Enter gt to start the search 3 Inthe search results select the option that best describes the problem and follow the remaining troubleshooting steps Dell Diagnostics A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance When to Use the Dell Diagnostics If you experience a problem with your computer perform the checks in Solving Problems and then run the Dell Diagnostics before contacting Dell for assistance Start the Dell Diagnostics from your hard drive or from the Drivers and Utilities media provided with your computer K NOTE The Drivers and Utilities media is optional and may not ship with your computer K NOTE The Dell Diagnostics only operate on Dell computers Starting the Dell Diagnostics From
78. b to raise the card retention latch 5 If necessary disconnect any cables connected to the card 6 Grasp the card by its top corners and ease it out of its connector 7 If you are removing the card permanently install a filler bracket in the empty card slot opening sf K NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintain the airflow that cools your computer 8 Lower the card retention latch and press it into place 9 Replace the riser card cage a Align the tabs in the side of the riser card cage with the slots on the side of the computer and slide the riser card cage down into place b Ensure that the riser cards are fully seated in the connectors on the system board riser card cage 2 1 riser cards a system board connectors 10 Replace the computer cover see Replacing the Computer Cover reconnect the computer and devices to electrical outlets and then turn them on 11 Uninstall the card s driver See the documentation that came with the card for instructions 12 If you removed a sound card a Enter system setup select System Configuration Miscellaneous Devices and change the Audio setting to Enabled See Entering System Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headp
79. bracket to remove the switch and its attached cable from the computer K NOTE You may feel a slight resistance as you slide the switch out of the slot 1 chassis intrusion switch 2 chassis intrusion switch cable Replacing the Chassis Intrusion Switch 1 Gently insert the switch from underneath the metal bracket into the square hole in the bracket and then slide the chassis intrusion switch into its slot until it snaps securely into place 2 Reconnect the cable to the system board 3 Replace the computer cover see Replacing the Computer Cover Resetting the Chassis Intrusion Detector 1 Turn on or restart your computer 2 When the DELL logo appears press lt F12 gt immediately If you wait too long and the operating system logo appears continue to wait until you see the Microsoft Windows desktop Then shut down your computer and try again 3 Select System Setup 4 Select Security Chassis Intrusion and then select the Clear Intrusion Warning option to reset the chassis intrusion detector Change the setting to On On Silent or Disabled K NOTE The default setting is On Silent 5 Save your BIOS settings and exit system setup Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Drives Drives Your computer supports One serial ATA SATA hard drive One 3 5 inch drive bay to support a floppy drive or a media card reader One SATA opt
80. cable into the network wall jack and then plug it into the computer b Connect the network cable to the network adapter card s connectors Do not connect the network cable to the integrated network connector on the back panel of the computer 14 Install any drivers required for the card as described in the card documentation Removing a PCI Card 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover K NOTE For PCI card locations see System Board Components 3 Gently lift the release tab on the card retention latch from the inside and pivot the latch open 4 If necessary disconnect any cables connected to the card 5 Grasp the card by its top corners and ease it out of its connector release tab 2 card retention latch 1 PCI card a card edge connector 5 eara connector PP 6 If you are removing the card permanently install a filler bracket in the empty card slot opening NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintain the airflow that cools your computer 7 Before you close the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide FaN CAUTI ON Do not route card
81. cated along the bottom edge of the computer b Using the hinge tabs as leverage rotate the cover downward to close it c Snap the cover into place by pulling back on the cover release latch and then releasing the latch when the cover is properly seated d Ensure that the cover is seated correctly before moving the computer A CAUTI ON To connect a network cable first plug the cable into the network wall jack and then plug it into the computer 4 Attach the computer stand if applicable For instructions see the documentation that came with the stand 5 Connect your computer and devices to electrical outlets and turn them on After you remove and replace the cover the chassis intrusion detector optional on some computers if installed and enabled causes the following message to appear on the screen at the next computer start up ALERT Cover was previously removed 6 Reset the chassis intrusion detector in System Setup by changing Chassis Intrusion to On or On Silent NOTE If an administrator password has been assigned by someone else contact your network administrator for information on resetting the chassis intrusion detector Ultra Small Form Factor 1 Follow the procedures in Working on Your Computer Pas CAUTI ON Before touching anything inside your computer ground yourself by touching an unpainted metal surface While you work periodically touch an unpainted metal surface to dissipate any static electricity that
82. chassis intrusion switch chassis intrusion switch cable Replacing the Chassis Intrusion Switch 1 Gently insert the switch from underneath the metal bracket into the square hole in the bracket and then slide the chassis intrusion switch into its slot until you feel it snap securely into place 2 Reconnect the chassis intrusion switch cable to the system board 3 Replace the computer cover see Replacing the Computer Cover Resetting the Chassis Intrusion Detector 1 Turn on or restart your computer 2 When the DELL logo appears press lt F12 gt immediately If you wait too long and the operating system logo appears continue to wait until you see the Microsoft Windows desktop Then shut down your computer and try again 3 Select the Chassis Intrusion option and then press the left or right arrow key to select Reset Change the setting to On On Silent or Disabled E NOTE The default setting is On Silent 4 Save your BIOS settings and exit system setup Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Drives Drives Your computer supports Two SATA Serial ATA hard drives One 3 5 inch floppy drive or media card reader Two SATA optical drives i a a 3 5 inch floppy drive or media card reader optical drive hard drive General Drive Installation Guidelines SATA connectors on the system board are labeled SATAO SATA1 SATA2 and SA
83. ck and then plug it into the computer 9 Replace the computer cover see Replacing the Computer Cover reconnect the computer and devices to electrical outlets and then turn them on 10 Uninstall the card s driver See the documentation that came with the card for instructions 11 If you removed a sound card a Enter system setup select System Configuration gt Miscellaneous Devices and change the Audio setting to Enabled see Entering System Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headphone or line in connectors on the back panel of the computer 12 If you removed a network adapter card and want to turn on the integrated network adapter a Enter system setup select System Configuration gt Integrated NIC and change the setting to Enabled see Entering System Setup b Connect the network cable to the integrated the back panel of the computer Removing a PCI Card From the Riser Card Cage 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the riser card cage a Check any cables connected to cards through the back panel openings Disconnect any cables that will not reach the riser card cage once they are removed from the computer b Gently pull on the handle and lift the riser card cage up and away from the computer 4 Press in on the ta
84. computer cover see Removing the Computer Cover 3 Remove the fan shroud by lifting the fan shroud up and away from the computer A WARNING The heat sink can get extremely hot Ensure that the heat sink has had sufficient time to cool before you touch it 4 Remove the heat sink a Pull the release lever on the retention base away from the heat sink until the heat sink is released top of heat sink retention base 4 release tab b Gently lift the heat sink from the processor c Lay the heat sink down on its top with the thermal grease facing upward Pas CAUTI ON Unless a new heat sink is required for the new processor reuse the original heat sink assembly when you replace the processor 5 Open the processor cover by sliding the release lever from under the center cover latch on the socket Then pull the lever back to release the processor 1 center cover latch processor cover processor socket release lever A CAUTI ON Ground yourself by touching an unpainted metal surface on the back of the computer A CAUTI ON When replacing the processor do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket 6 Gently remove the processor from the socket 7 Leave the release lever extended in the release position so that the socket is ready for the new processor I nstalling the Processor 1 Unpack the new processor being careful not to touch the underside o
85. could harm internal components 2 If applicable remove the cable cover see Removing the Cable Cover 3 Replace the computer cover a Tilting the cover slightly align it with the retaining strip at the back of the system b Slide the computer cover backward until it snaps into place WARNING Graphics card heat sinks can become very hot during normal operation Ensure that a graphics card heat sink has had sufficient time to cool before you touch it Back to Contents Page Dell OptiPlex 760 Service Manual Cards Cards A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis K NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintains the airflow that cools your computer Your Dell computer supports a PS 2 serial port adapter and provides the following connectors for PCI and PCI Express cards One low profile PCI card slot One low profile PCI
86. cover 1 Follow the procedures in Working on Your Computer 2 If you have installed a padlock through the padlock ring on the back panel remove the padlock 3 Locate the cover release latch shown in the illustration Then slide the release latch back as you lift the cover 4 Grip the sides of the computer cover and pivot the cover up using the hinge tabs as leverage points 5 Remove the cover from the hinge tabs and set it aside on a soft nonabrasive surface A WARNING Graphics card heat sinks can become very hot during normal operation Ensure that a graphics card heat sink has had sufficient time to cool before you touch it security cable slot cover release latch padiockring f ooo I nside View of Your Computer WARNI NG Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance A WARNING To avoid electrical shock always unplug your computer from the electrical outlet before removing the computer cover A CAUTI ON Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board 5 card slots 7 front I O panel 3 processor power connector I2VPOWER 4 memory module connectors DIMM 2 DIMM_2 DIMM_3 and BIN 5 password jumper PswD e sata connectors SATAL and satay O O O 7
87. d Components JUUOOUGOLOCL AAAA fan connector FAN_FRONT internal speaker connector INT_SPKR 1 P T 5 channel A memory connector DIMMI 6 SATA deta cable connector SATA0 7 batten eam e password jumper Psw r r sfesce OEP Dell Badge WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance The Dell badge on the front of your computer can be rotated To rotate the badge 1 Remove the computer cover see Removing the Computer Cover 2 Pull on the tab away from the chassis and rotate the badge to the desired position 3 Ensure that the tab is secured in the slot Back to Contents Page Dell OptiPlex 760 Service Manual Ultra Small Form Factor Computer About Your Computer Removing and Replacing Parts Inside Your Computer Working on Your Computer System Setup Removing the Computer Cover Advanced Features Cable Cover Troubleshooting Chassis Intrusion Switch Getting Help Drives Glossary Module Bay Heat Sink and Processor System Fans Speakers Memory Battery Replacing the System Board Replacing the Computer Cover Notes Cautions and Warnings K NOTE A NOTE indicates important information that helps you make better use of your computer A CAUTI ON A CAUTI ON indicates po
88. d filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 10 Secure any remaining card s by closing the card retention latch and snapping it into place CAUTION Do not route card cables over the cards Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment 11 Replace the computer cover see Replacing the Computer Cover 12 Uninstall the card s driver See the documentation that came with the card for instructions 13 If you removed a sound card a Enter system setup select System Configuration Miscellaneous Devices and change the Audio setting to Enabled See Entering System Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headphone or line in connectors on the back panel of the computer 14 If you removed a network adapter card and want to turn on the integrated network adapter a Enter system setup select System Configuration Integrated NIC and change the setting to Enabled See Entering System Setup b Connect the network cable to the integrated the back panel of the computer PS 2 Serial Port Adapter Installing a PS 2 Serial Port Adapter 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently lift the
89. d inside the processor L2 cache Secondary cache which can either be external to the processor or incorporated into the processor architecture carnet An international customs document that facilitates temporary imports into foreign countries Also known as a merchandise passport CD R CD recordable A recordable version of a CD Data can be recorded only once onto a CD R Once recorded the data cannot be erased or written over CD RW CD rewritable A rewritable version of a CD Data can be written to a CD RW disc and then erased and written over rewritten CD RW drive A drive that can read CDs and write to CD RW rewritable CDs and CD R recordable CDs discs You can write to CD RW discs multiple times but you can write to CD R discs only once CD RW DVD drive A drive sometimes referred to as a combo drive that can read CDs and DVDs and write to CD RW rewritable CDs and CD R recordable CDs discs You can write to CD RW discs multiple times but you can write to CD R discs only once clock speed The speed given in MHz that indicates how fast computer components that are connected to the system bus operate COA Certificate of Authenticity The Windows alpha numeric code located on a sticker on your computer Also referred to as the Product Key or Product ID Control Panel A Windows utility that allows you to modify operating system and hardware settings such as display settings controlle
90. d other media players may override the Windows volume setting Always check to ensure that the volume on the media player s has not been turned down or off Check the speaker cable connections Ensure that the speakers are connected as shown on the setup diagram supplied with the speakers If you purchased a sound card ensure that the speakers are connected to the card Ensure that the subwoofer and the speakers are turned on See the setup diagram supplied with the speakers If your speakers have volume controls adjust the volume bass or treble to eliminate distortion Adjust the Windows volume control Click or double click the speaker icon in the lower right corner of your screen Ensure that the volume is turned up and that the sound is not muted Disconnect headphones from the headphone connector Sound from the speakers is automatically disabled when headphones are connected to the computer s front panel headphone connector Test the electrical outlet Ensure that the electrical outlet is working by testing it with another device such as a lamp Eliminate possible interference Turn off nearby fans fluorescent lights or halogen lamps to check for interference Run the speaker diagnostics Reinstall the sound driver Run the Hardware Troubleshooter See Hardware Troubleshooter No sound from headphones Check the headphone cable connection Ensure that the headphone cable is securely inserted into the headp
91. d to Static IP 9 Set the I mageServer IP with the primary Provisioning Server IP address The default address is 255 255 255 255 10 Save the settings and reboot the system Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual K NOTE A NOTE indicates important information that helps you make better use of your computer A CAUTI ON A CAUTI ON indicates potential damage to hardware or loss of data if instructions are not followed WARNING A WARNING indicates a potential for property damage personal injury or death If you purchased a Dell n Series computer any references in this document to Microsoft Windows operating systems are not applicable Information in this document is subject to change without notice 2008 2009 Dell Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo OptiPlex TravelLite OpenManage and StrikeZone are trademarks of Dell Inc Intel and SpeedStep are registered trademarks of Intel Corporation in the U S and other countries Microsoft Windows Windows Vista and the Windows Start button are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Computrace is a registered trademark of Absolute Software Corp Citrix is a registered trademarks of Citrix Systems Inc and or one or
92. d with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis Removing the Processor 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the heat sink assembly see Removing the Heat Sink Assembly A CAUTI ON Unless a new heat sink is required for the new processor reuse the original heat sink assembly when you replace the processor 4 Open the processor cover by sliding the release lever from under the center cover latch on the socket Then pull the lever back to release the processor center cover latch processor cover processor a socket release lever e E A CAUTI ON When replacing the processor do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket 5 Gently remove the processor from the socket Leave the release lever extended in the release position so that the socket is ready for the new processor I nstalling the Processor A CAUTI ON Ground yourself by touching an unpainted metal surface on the back of the computer A CAUTI ON When replacing the p
93. dicates potential damage to hardware or loss of data if instructions are not followed A WARNING A WARNING indicates a potential for property damage personal injury or death If you purchased a Dell n Series computer any references in this document to Microsoft Windows operating systems are not applicable Information in this document is subject to change without notice 2008 2009 Dell Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo OptiPlex TravelLite OpenManage and StrikeZone are trademarks of Dell Inc Intel and SpeedStep are registered trademarks of Intel Corporation in the U S and other countries Microsoft Windows Windows Vista and the Windows Start button are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Computrace is a registered trademark of Absolute Software Corp Citrix is a registered trademarks of Citrix Systems Inc and or one or more of its subsidiaries and may be registered in the United States Patent and Trademark Office and in other countries Bluetooth is a trademark owned by Bluetooth SIG Inc and is used by Dell Inc under license ENERGY STAR is a registered trademark of the U S Environmental Protection Agency As an ENERGY STAR partner Dell Inc has determined that this product meets the ENERGY STAR guideli
94. e Video BIOS Test Failure Contact Dell see Contacting Dell System Messages NOTE If the message you received is not listed in the table see the documentation for either the operating system or the program that was running when the message appeared Alert Previous attempts at booting this system have failed at checkpoint nnnn For help in resolving this problem please note this checkpoint and contact Dell Technical Support The computer failed to complete the boot routine three consecutive times for the same error see Contacting Dell for assistance CMOS checksum error Possible system board failure or RTC battery low Replace the battery see Battery or see Contacting Dell for assistance CPU fan failure CPU fan failure Replace the CPU fan See the following Mini Tower Heat Sink and Processor Desktop Heat Sink Assembly Small Form Factor Heat Sink and Processor Ultra Small Form Factor Heat Sink and Processor Floppy diskette seek failure A cable may be loose or the computer configuration information may not match the hardware configuration Check cable connections see Contacting Dell for assistance Diskette read failure The floppy disk may be defective or a cable may be loose Replace the floppy disk or check for a loose cable connection Hard disk read failure Possible hard drive failure during hard drive boot test see Contacting Dell for assistance Keyboard failure
95. e The security management software is designed to utilize four different features to help you secure your computer Log in management Pre boot authentication using a fingerprint reader smart card or password Encryption Private information management For information about how to use the software and the different security features see Getting Started Guide for the software Click Start gt All Programs Wave Systems Corp Getting Started Guide Computer Tracking Software Computer tracking software may enable you to locate your computer if it is lost or stolen The software is optional and may be purchased when you order your Dell computer or you can contact your Dell sales representative for information about this security feature K NOTE Computer tracking software may not be available in certain countries NOTE If you have computer tracking software and your computer is lost or stolen you must contact the company that provides the tracking service to report the missing computer About Smart Cards and Fingerprint Readers K NOTE The smart card feature or fingerprint reader may not be available on your computer Smart cards are portable credit card shaped devices with internal integrated circuits The top surface of the smart card usually contains an embedded processor under the gold contact pad The combination of the small size and integrated circuits make smart cards valuable tools for security data storage a
96. e computer to run with little power conservation Portable Laptop If your computer is a portable computer that you use for traveling Presentation If you want your computer to run without interruption using no power conservation Minimal Power Management If you want your computer to run with minimal power conservation Max Battery If your computer is a portable computer and you run your computer from batteries for extended periods of time If you want to change the default settings for a scheme click the drop down menu in the Turn off monitor Turn off hard disks System stand by or System hibernates field and then select a time out from the displayed list Changing the time out for a scheme field permanently changes the default settings for that scheme unless you click Save As and enter a new name for the changed scheme Advanced Tab The Advanced tab allows you to 1 Fy yy Place the power options icon in the Windows task bar for quick access Set the computer to prompt you for your Windows password before the computer exits from standby mode or hibernate mode Program the power button to activate standby mode activate hibernate mode or turn off the computer To program these functions click an option from the corresponding drop down menu and click OK Hibernate Tab The Hibernate tab allows you to enable hibernate mode If you want to use the hibernate settings as defined on the Power Schemes
97. e noise which does not indicate a defect in the drive or the media K NOTE Because of different regions worldwide and different disc formats not all DVD titles work in all DVD drives Adjust the Windows volume control Click the speaker icon in the lower right corner of your screen Ensure that the volume is turned up by clicking the sidebar and dragging it up Ensure that the sound is not muted by clicking any boxes that are checked Check the speakers and subwoofer See Sound and Speaker Problems Problems writing to an optical drive Close other programs The optical drive must receive a steady stream of data during the writing process If the stream is interrupted an error occurs Try closing all programs before you write to the optical Turn off standby mode in Windows before writing to a disc Search for the keyword standby in Windows Help and Support for information on power management modes Hard drive problems Run Check Disk Windows XP 1 Click Start and click My Computer 2 Right click Local Disk C 3 Click Properties Tools Check Now 4 Click Scan for and attempt recovery of bad sectors and click Start Windows Vista Click Start and click Computer Right click Local Disk C Click Properties Tools Check Now ae i The User Account Control window may appear If you are an administrator on the computer click Continue otherwise contact your administrator to contin
98. e routing of the DC power cables underneath the tabs in the computer chassis as you remove them from the system board and drives You must route these cables properly when you replace them to prevent them from being pinched or crimped 4 Remove the two screws that attach the power supply to the back of the computer chassis 5 Remove the optical drive and carefully set it aside See Optical Drive 6 Press the release button located on the floor of the computer chassis and then slide the power supply towards the front of the computer chassis a LNA SLES LILLIE CLEARED LAL APA PLPLP APRIL GL 7 Lift the power supply up and out of the computer 8 Slide the replacement power supply into place 9 Replace the screws that secure the power supply to the back of the computer chassis 10 Reconnect the DC power cables 11 Replace the optical drive see Optical Drive 12 Connect the AC power cable to the connector 13 Replace the computer cover see Replacing the Computer Cover DC Power Connectors DC Power Connector P1 13 14 15 16 17 18 19 20 21 22 23 24 Cal C G o C Cal Cal Cal Cala Cf Cul fff l Calf Calf Cul Calf L E ws amp v 8 we i MM AZ Pin Number Signal name 18 AWG Wire COM FAN Black Brown N C N C 3 3 VDC COM Orange Black O O zZ Black 12 VDC 5 VSB Purple OTOoONTOTuUFR LT WInNte O O zZ Black m m oO m m 5 VDC 5 VDC 5 VDC ea w
99. ect the monitor directly to the computer Swap the computer and monitor power cables to determine if the monitor s power cable is defective Check the connectors for bent or broken pins it is normal for monitor cable connectors to have missing pins Check the monitor power light If the power light is lit or blinking the monitor has power If the power light is off firmly press the button to ensure that the monitor is turned on If the power light is blinking press a key on the keyboard or move the mouse to resume normal operation Test the electrical outlet Ensure that the electrical outlet is working by testing it with another device such as a lamp Check the diagnostic lights See Diagnostic Lights Check the monitor settings See the monitor documentation for instructions on adjusting the contrast and brightness demagnetizing degaussing the monitor and running the monitor self test Move the subwoofer away from the monitor If your speaker system includes a subwoofer ensure that the subwoofer is positioned at least 60 centimeters 2 feet away from the monitor Move the monitor away from external power sources Fans fluorescent lights halogen lamps and other electrical devices can cause the screen image to appear shaky Turn off nearby devices to check for interference Rotate the monitor to eliminate sunlight glare and possible interference Adjust the Windows display settings Windows XP
100. ed a possible system board failure If your computer emits a series of beeps during start up 1 Write down the beep code 2 Run the Dell Diagnostics to further identify the problem see Dell Diagnostics Cause 2 short 1 long BIOS checksum error 1 long 3 short 2 short 1 short F12 key pressed Code repetitive Description Suggested Resolution short beeps 1 BIOS checksum failure Contact Dell see Contacting Dell Possible system board failure No memory modules are If two or more memory modules are installed remove the modules then reinstall one module and detected restart the computer If the computer starts normally continue to install additional memory modules one at a time until you have identified a faulty module or reinstalled all modules without error See Memory If available install working memory of the same type into your computer See Memory Ifthe problem persists contact Dell see Contacting Dell Possible system board Contact Dell see Contacting Dell failure RAM Read Write failure Ensure that no special requirements for memory module connector placement exist See Memory Ensure that the memory you are using is supported by your computer See Memory If the problem persists contact Dell see Contacting Dell Real time clock failure Replace the battery See Replacing the Battery Possible battery or system If the problem persists contact Dell see Contacting Dell board failur
101. ed as x columns by y rows of characters video resolution See resolution virus A program that is designed to inconvenience you or to destroy data stored on your computer A virus program moves from one computer to another through an infected disk software downloaded from the Internet or e mail attachments When an infected program starts its embedded virus also starts A common type of virus is a boot virus which is stored in the boot sectors of a floppy disk If the floppy disk is left in the drive when the computer is shut down and then turned on the computer is infected when it reads the boot sectors of the floppy disk expecting to find the operating system If the computer is infected the boot virus may replicate itself onto all the floppy disks that are read or written in that computer until the virus is eradicated V volt The measurement of electric potential or electromotive force One V appears across a resistance of 1 ohm when a current of 1 ampere flows through that resistance W W watt The measurement of electrical power One W is 1 ampere of current flowing at 1 volt WHr watt hour A unit of measure commonly used to indicate the approximate capacity of a battery For example a 66 WHr battery can supply 66 W of power for 1 hour or 33 W for 2 hours wallpaper The background pattern or picture on the Windows desktop Change your wallpaper through the Windows Control Panel You can also scan in
102. egulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the cover K NOTE Note the routing of all cables as you remove them so that you can re route them correctly when installing the new I O panel 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover CAUTION When sliding the I O panel out of the computer be extremely careful Carelessness may result in damage to the cable connectors and the cable routing clips 3 Remove the screw that secures the I O panel Press the release button to slide the card away from the front of the computer 4 Disconnect all of the cables from the I O panel and remove the panel from the computer I O panel release button I O panel 4 I O cable connector Replacing the I O Panel 1 To replace the I O panel follow the removal procedure in the reverse order NOTE Use the guides on the I O panel bracket to help position the I O panel in place and use the notch on the I O panel bracket to help seat the panel Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Power Supply Power Supply Replacing the Power Supply A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance H
103. eing provisioned Alert Standard Format Alert Standard Format ASF is a DMTF management standard that specifies pre operating system or operating system absent alerting techniques The standard is designed to generate an alert on potential security and fault conditions when the operating system is in a sleep mode or the computer is turned off ASF is designed to supersede previous operating system absent alerting technologies Your computer supports the following ASF version 1 03 and 2 0 alerts and remote capabilities Alert Description Chassis Chassis Intrusion Physical Security The computer chassis with the chassis intrusion feature optional on some Violation Chassis Intrusion Physical Security Violation computers installed and enabled has been opened or the chassis intrusion alert has Event Cleared been cleared CPU Emergency Shutdown Event The processor temperature is too hot and the power supply has shut down Cooling Device Generic Critical Fan Failure Generic Critical The fan speed rpm is out of limits or the fan speed rpm problem has been Fan Failure Cleared resolved Temperature Generic Critical Temperature Problem Generic The computer temperature is out of limits or the computer temperature problem has Critical Temperature Problem Cleared been resolved Battery Low The computer battery has reached a voltage of 2 2 V or lower ASF allows Remote Management and Control Protocol RMCP messages t
104. elease tab and slide the speaker up 4 Release the speaker from the securing tabs on the chassis 5 Disconnect the speaker cable from the INT_SPEAKER connector on the system board and set the speaker aside 6 Replace the computer cover 7 Turn on power to the computer Installing a Speaker 1 Follow the procedures in Working on Your Computer 2 Remove the cover of your computer see Removing the Computer Cover 3 Connect the speaker cable to the INT_SPEAKER connector on the system board 4 Insert the speaker into the chassis of the computer 5 Replace the computer cover 6 Turn on power to the computer Back to Contents Page Back to Contents Page Ultra Small Form Factor Dell OptiPlex 760 Service Manual Removing the Computer Cover inside Your Computer System Board Components Dell Badge A CAUTI ON Do not place your monitor on the computer Use a monitor stand CAUTI ON When setting up your computer secure all cables toward the back of your work area to prevent the cables from being pulled tangled or stepped on H NOTE If you want to orient your computer under a desk top or on a wall surface use the optional wall mount bracket To order this bracket contact Dell see Contacting Dell Removing the Computer Cover WARNI NG Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see t
105. enter hibernate mode in Windows Vista click Start Click the arrow in the lower right corner of the Start menu and then click Hibernate Configuring Power Management Settings You can use the Windows Power Options Properties to configure the power management settings on your computer To access Power Options Properties click Start Control Panel System and Maintenance Power Options Back to Contents Page Back to Contents Page Battery Dell OptiPlex 760 Service Manual Replacing the Battery Replacing the Battery A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance Fis CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis A coin cell battery maintains computer configuration date and time information The battery can last several years The battery may need replacing if an incorrect time or date is displayed during the boot routine along with a message such as Time of day not set please run SETUP program or Invalid configuration information please run SETUP program or Strike the F1 key to continue
106. equires your input to answer specific questions Custom Test Use to test a specific device or customize the tests to be run Symptom Tree This option allows you to select tests based on a symptom of the problem you are having This option lists the most common symptoms K NOTE It is recommended that you select Extended Test to perform a more thorough check of devices in the computer For any problem encountered during a test a message appears with an error code and a description of the problem Write down the error code and problem description exactly as it appears and follow the instructions on the screen If you cannot resolve the problem contact Dell see Contacting Dell K NOTE When contacting Dell support have your Service Tag ready The Service Tag for your computer is located at the top of each test screen The following tabs provide additional information for tests run from the Custom Test or Symptom Tree option Results Displays the results of the test and any error conditions encountered Displays error conditions encountered error codes and the problem description Describes the test and any requirements for running the test Configuration Displays the hardware configuration for the selected device The Dell Diagnostics obtains configuration information for all devices from System Setup memory and various internal tests and displays the information in the device list in the left pane of the screen NOTE
107. er 0000 Power connector not installed properly Steady Amber 000 Steady Amber 000 Steady Amber OO A possible motherboard failure has occurred Possible peripheral card or motherboard failure has occurred A possible motherboard failure has occurred A possible coin cell battery failure has occurred Steady Amber D0 The computer is in a normal on condition gt The diagnostic lights are not lit after the computer successfully boots to the operating system Steady Green A possible processor failure has occurred 0909 Steady Green oo0 Memory modules are detected but a memory failure has occurred 6 The computer hardware is operating normally but the BIOS may be corrupt or missing Contact Dell see Contacting Dell Remove all cards from the PCI and PCI E slots and restart the computer If the computer boots add the cards back one by one until you find the bad one If the problem persists the system board may be faulty Contact Dell see Contacting Dell Reseat the 2x2 power connector from the power supply unit If the computer still fails to boot contact Dell see Contacting Dell Remove all cards from the PCI and PCI E slots and restart the computer If the computer boots add the cards back one by one until you find the faulty one If the problem persists the system board is probably bad Contact Dell see Contacting Dell Disconnect all internal and external periphera
108. er to you If the computer s hard drive becomes corrupted Windows XP recreates the hibernate file automatically Power Options Properties Define your standby mode settings hibernate mode settings and other power settings in the Power Options Properties window To access the Power Options Properties window 1 Click Start Control Panel gt Pick a category Performance and Maintenance 2 Under or pick a Control Panel icon click Power Options 3 Define your power settings on the Power Schemes tab Advanced tab and Hibernate tab as described in the following sections Power Schemes Tab Each standard power setting is called a scheme If you want to select one of the standard Windows schemes installed on your computer choose a scheme from the Power schemes drop down menu The settings for each scheme appear in the fields below the scheme name Each scheme has different settings for starting standby mode hibernate mode turning off the monitor and turning off the hard drive A CAUTI ON If you set the hard drive to time out before the monitor does your computer may appear to be locked up To recover press any key on the keyboard or click the mouse To avoid this problem always set the monitor to time out before the hard drive The Power schemes drop down menu displays the following schemes Always On default If you want to use your computer with no power conservation Home Office Desk If you want your home or offic
109. ergy efficiency Models DCTR DCNE DCSM and DCCY February 2009 Rev A01 Back to Contents Page
110. ernal connections or customizing it for your computer 8 If you are installing the card into the x16 card connector position the card so that the securing slot is aligned with the securing tab and gently pull the securing tab 1 PCI Express x16 card 2 securing slot not all cards 4 securing tab PCI Express x16 card connector EE 9 Place the card in the connector and press down firmly Ensure that the card is fully seated in the slot 1 card fully seated 2 card not fully seated bracket within slot 4 bracket caught outside of slot 10 Before you lower the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 11 Secure the card s by closing the card retention latch and snapping it into place A CAUTI ON Do not route card cables over or behind the cards Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment 12 Connect any cables that should be attached to the card See the documentation for the card for information about the card s cable connections 13 Replace the computer cover see Replacing the Computer Cover reconnect the computer and devices to electrical outlets and then turn them on 14 If you installed a sound card a Enter system setup select System Configuration Miscellaneo
111. essor 12 Install the heat sink assembly a Place the heat sink assembly back onto the heat sink assembly bracket b Rotate the heat sink assembly down towards the computer base and tighten the two captive screws CAUTION Ensure that the heat sink assembly is correctly seated and secure 1 heat sink assembly 2 heat sink assembly bracket 13 Replace the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Chassis Intrusion Switch Chassis Intrusion Switch WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance Removing the Chassis Intrusion Switch 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Disconnect the chassis intrusion switch cable from the system board by using two fingers to squeeze the release mechanism on one side of the connector as you pull to disconnect the cable connector 4 Slide the chassis intrusion switch out of its slot in the metal bracket and then push it down through the square hole in the bracket to remove the switch and its attached cable from the computer K NOTE You may feel a slight resistance as you slide the switch out of the slot
112. ete removal of the optical drive it is not necessary to disconnect the cables connecting the optical drive 3 Remove the optical drive if one exists and carefully set it aside see Removing an Optical Drive LAN CAUTION Do not pull the drive out of the computer by the drive cables Doing so may cause damage to cables and the cable connectors 4 Pull up on the drive release latch and slide the media card reader to the back of the computer Then lift up to remove the drive from the computer 1 drive release latch 2 media card reader 5 Disconnect the cable from the back of the media card reader and from the system board 6 If you are not replacing the media card reader at this time install the 3 5 inch drive insert see Replacing Drive Inserts Contact Dell if you need a drive bay insert Installing a Media Card Reader 1 If you are installing a new drive or media card reader a Remove the drive inserts see Removing Drive Inserts b Remove the four shoulder screws from the drive panel insert C Pull to remove the 3 5 inch drive insert that should be installed in the drive bay 2 If you are replacing an existing media card reader Remove the four shoulder screws from the existing media card reader 3 Insert the four shoulder screws into the sides of the new media card reader and tighten them 4 Align the shoulder screws with the screw guides and slide the media card reader into the bay until it
113. f test Diagnostics programs loaded automatically by the BIOS that perform basic tests on the major computer components such as memory hard drives and video If no problems are detected during POST the computer continues the start up processor A computer chip that interprets and executes program instructions Sometimes the processor is referred to as the CPU central processing unit PS 2 personal system 2 A type of connector for attaching a PS 2 compatible keyboard mouse or keypad PXE pre boot execution environment A WfM Wired for Management standard that allows networked computers that do not have an operating system to be configured and started remotely R RAID redundant array of independent disks A method of providing data redundancy Some common implementations of RAID include RAID 0 RAID 1 RAID 5 RAID 10 and RAID 50 RAM random access memory The primary temporary storage area for program instructions and data Any information stored in RAM is lost when you shut down your computer readme file A text file included with a software package or hardware product Typically readme files provide installation information and describe new product enhancements or corrections that have not yet been documented read only Data and or files you can view but cannot edit or delete A file can have read only status if o It resides on a physically write protected floppy disk CD or DVD o It
114. f the processor 2 Ifthe release lever on the socket is not fully extended move it to that position 3 Orient the front and rear alignment notches on the processor with the front and rear alignment notches on the socket 4 Align the pin 1 corners of the processor and socket ras CAUTI ON To avoid damage ensure that the processor aligns properly with the socket and do not use excessive force when you install the processor 5 Set the processor lightly in the socket and ensure that the processor is positioned correctly 6 When the processor is fully seated in the socket pivot the release lever back toward the socket until it snaps into place to secure the processor 1 processor cover s orocessor a s center cover ich klase OOOO O iront alignment notch af socket and processor pict Indcator ofrer anomenen If you are installing a processor replacement kit from Dell return the processor to Dell in the same package in which your replacement kit was sent A CAUTI ON Ground yourself by touching an unpainted metal surface on the back of the computer 7 Clean the thermal grease from the bottom of the heat sink A CAUTI ON Ensure that you apply new thermal grease New thermal grease is critical for ensuring adequate thermal bonding which is a requirement for optimal processor operation 8 Apply the new thermal grease to the top of the processor 9 Place one end of the heat sink under the tab on the retention
115. f the way to provide airflow for the fan and cooling vents 7 Replace the computer cover see Replacing the Computer Cover 8 See the documentation that came with the drive for instructions on installing any software required for drive operation 9 Verify that your computer works correctly by running the Dell Diagnostics see Dell Diagnostics Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual System Fan System Fan A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance Removing the System Fan 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the heat sink assembly and processor see Removing the Processor 4 Remove the system board see Removing the System Board 5 Disconnect the diagnostics lights cable from the fan assembly 6 Press the tab that secures the fan to computer chassis and push the fan away from the computer chassis 7 Lift the system fan up and away from the computer diagnostic lights cable retention tab Installing the System Fan To replace the fan follow the removal procedures in the reverse order Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual 1 0 Pane
116. ff If your computer and attached devices did not automatically turn off when you shut down your operating system press and hold the power button for about 4 seconds to turn them off After Working on Your Computer After you have completed any replacement procedures ensure that you connect any external devices cards cables and so on before turning on your computer 1 Replace the computer cover see Replacing the Computer Cover 2 Connect any telephone or network cables to your computer A CAUTI ON To connect a network cable first plug the cable into the network device and then plug it into the computer 3 Connect your computer and all attached devices to their electrical outlets 4 Turn on your computer 5 Verify that the computer works correctly by running the Dell Diagnostics seeDell Diagnostics Back to Contents Page Dell OptiPlex 760 Service Manual Desktop Computer About Your Computer Removing and Replacing Parts Inside Your Computer Working on Your Computer System Setup Removing the Computer Cover Advanced Features Chassis Intrusion Switch Troubleshooting Cards Getting Help Drives Glossary Heat Sink Assembly Processor System Fan I O Panel Power Supply Speakers Memory Battery Replacing the System Board Replacing the Computer Cover Notes Cautions and Warnings K NOTE A NOTE indicates important information that helps you make better use of your computer A CAUTI ON A CAUTI ON in
117. for short range 9 m 29 feet networking devices that allows for enabled devices to automatically recognize each other boot sequence Specifies the order of the devices from which the computer attempts to boot bootable CD A CD that you can use to start your computer In case your hard drive is damaged or your computer has a virus ensure that you always have a bootable CD or floppy disk available Your Drivers and Utilities media or ResourceCD is a bootable CD or DVD bootable disk A disk that you can use to start your computer In case your hard drive is damaged or your computer has a virus ensure that you always have a bootable CD DVD or floppy disk available bps bits per second The standard unit for measuring data transmission speed BTU British thermal unit A measurement of heat output bus A communication pathway between the components in your computer bus speed The speed given in MHz that indicates how fast a bus can transfer information byte The basic data unit used by your computer A byte is usually equal to 8 bits C C Celsius A temperature measurement scale where 0 is the freezing point and 100 is the boiling point of water cache A special high speed storage mechanism which can be either a reserved section of main memory or an independent high speed storage device The cache enhances the efficiency of many processor operations L1 cache Primary cache store
118. fore working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover 1 Follow the procedures in Working on Your Computer 2 If you have installed a padlock through the padlock ring on the back panel remove the padlock 3 Slide the release latch back as you lift the cover security cable slot cover release latch padlock ring 4 computer cover_ 4 Pivot the cover up using the bottom hinges as leverage points 5 Remove the cover from the hinge tabs and set it aside on a soft nonabrasive surface WARNI NG Graphics card heat sinks can become very hot during normal operation Ensure that a graphics card heat sink has had sufficient time to cool before you touch it I nside Your Computer WARNI NG Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance A WARNING To avoid electrical shock always unplug your computer from the electrical outlet before removing the computer cover A CAUTI ON Be careful when opening the computer cover to ensure that you do not accidentally disco
119. g for thermal alerts from temperature probes or hard drive failure alerts from storage devices Change the state of your computer by updating its BIOS configuring BIOS settings or shutting it down remotely With Dell Client Manager installed on a console and its client software installed on client computers you have a managed computer For information about DCM see the Dell Support website at support dell com Physical Security Chassis Intrusion Detection K NOTE When the administrator password is enabled you must know the administrator password before you can reset the Chassis Intrusion setting This optional on some computers feature if installed and enabled detects that the chassis was opened and alerts the user To change the Chassis Intrusion setting 1 Enter the system setup see Entering System Setup 2 Select Security gt Chassis I ntrusion 3 Click to select an option setting 4 Exit and save system setup Option Settings On If the computer cover is opened the setting changes to Detected and the following alert message displays during the boot routine at the next computer start up Alert Cover was previously removed To reset the Detected setting a Enter system setup see Entering System Setup b Select Security gt Chassis Intrusion and then select the Clear Intrusion Warning option to reset the chassis intrusion detector Change the setting to On On Silent or Disabled E NOTE The defaul
120. gged directly in to a 4 pin socket on your computer or in to a multi port hub that plugs in to your computer USB devices can be connected and disconnected while the computer is turned on and they can also be daisy chained together UTP unshielded twisted pair Describes a type of cable used in most telephone networks and some computer networks Pairs of unshielded wires are twisted to protect against electromagnetic interference rather than relying on a metal sheath around each pair of wires to protect against interference UXGA ultra extended graphics array A video standard for video cards and controllers that supports resolutions up to 1600 x 1200 V video controller The circuitry on a video card or on the system board in computers with an integrated video controller that provides the video capabilities in combination with the monitor for your computer video memory Memory that consists of memory chips dedicated to video functions Video memory is usually faster than system memory The amount of video memory installed primarily influences the number of colors that a program can display video mode A mode that describes how text and graphics are displayed on a monitor Graphics based software such as Windows operating systems displays in video modes that can be defined as x horizontal pixels by y vertical pixels by z colors Character based software such as text editors displays in video modes that can be defin
121. hard drive bracket 6 Connect the power and data cables to the drive 7 Ensure that the data cable is securely connected to the connector on the system board CAUTION Always connect the data cable to the SATAO connector on the system board or to the SATA1 connector if you already have a hard drive connected to the SATAO connector and you are installing a second hard drive 8 Check all connectors to be certain that they are properly cabled and firmly seated 9 Replace the computer cover see Replacing the Computer Cover 10 Insert bootable media and enter system setup see Entering System Setup and update the SATA port option under the Drives option list 11 Exit system setup and reboot the computer 12 Partition and logically format your drive See the documentation for your operating system for instructions 13 Test the hard drive by running the Dell Diagnostics see Dell Diagnostics 14 If the drive you just installed is the primary drive install your operating system on the hard drive If the drive you just installed is the primary drive insert a bootable medium into your boot drive See the documentation that came with the drive for instructions on installing any software required for drive operation Adding a Second Hard Drive A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Comp
122. he Regulatory Compliance Homepage at www dell com regulatory_compliance CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 If applicable remove the cable cover see Cable Cover Optional 3 Remove the computer cover a Rotate the cover release knob in a clockwise direction 1 release knob b Slide the computer cover forward by 1 cm 12 inch or until it stops and then raise the cover Inside Your Computer A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To avoid electrical shock always unplug your computer from the AC power adapter before removing the cover A CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis fan shroud heat sink assembly speaker optional memory modules 2 a nardarive security cable slot 6 chassis intrusion switch System Boar
123. he computer until the drive panel snaps open while holding the lever in place slide the drive out of the computer Installing the Floppy Drive 1 If you are replacing a floppy drive remove the shoulder screws from the existing drive and attach the screws to the replacement drive 2 If you are installing a new floppy drive remove the drive panel insert for the 3 5 inch drive bay remove the shoulder screws from the inside of the drive panel insert and attach the screws to the new drive amp 9 3 Align the shoulder screws on the floppy drive with the shoulder screw slots and gently slide it into the bay until it clicks into place floppy drive shoulder screw slots 2 floppy drive connector DSKT pp 5 Replace the computer cover see Replacing the Computer Cover 6 Enter system setup see System Setup and use the Diskette Drive option to enable your new floppy drive 7 Verify that your computer works correctly by running the Dell Diagnostics see Dell Diagnostics Media Card Reader WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover Removing the Media Card Reader 1 Follow the procedures i
124. he new drive amp 5 Check the documentation that accompanied the drive to verify that the drive is configured for your computer 6 Align the shoulder screws on the optical drive with the shoulder screw slots and slide the drive into the bay until it clicks into place optical drive shoulder screws 3 3 shoulder screw slots 2 7 Connect the power and data cables to the drive and to the system board CAUTION Always connect the optical drive SATA cable to a system board SATA connector that is labeled with a number higher than those connected to any hard drives installed in the computer power cable 1 SATA optical drive connector a data cable 8 Check all cable connections and fold cables out of the way to provide airflow for the fan and cooling vents 9 Replace the computer cover see Replacing the Computer Cover 10 Update your configuration information in system setup by setting the appropriate Drive option under Drives see System Setup 11 Verify that your computer works correctly by running the Dell Diagnostics see the Dell Diagnostics Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual 1 0 Panel I O Panel Removing the I O Panel WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com r
125. hes a tab or a filled in hole on the other connector When connecting cables to a drive ensure that the connectors are oriented properly before you attach the cables to the drive 6 Slide the hard drive into the hard drive bracket 7 Attach the data and power cables to the hard drive connectors ensuring that the connectors are properly oriented before connecting them 8 Replace the computer cover see Replacing the Computer Cover 9 Replace the cable cover if used 10 See the documentation that came with the drive for instructions on installing any software required for drive operation 11 Reboot the computer 12 Partition and logically format your drive before you proceed to the next step For instructions see the documentation that came with your operating system 13 Test the hard drive by running the Dell Diagnostics see Dell Diagnostics 14 Install your operating system on the hard drive For instructions see the documentation that came with your operating system Removing the Hard Drive Fan 1 Follow the instructions in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the hard drive see Removing the Hard Drive 4 Remove the screw that secures the fan release tab to the hard drive bracket 5 Press down on the fan release tab and then slide the fan towards the front of the computer so that its side tabs are free of the corresponding slots in the
126. his document provides procedures for removing and installing the components in your computer Unless otherwise noted each procedure assumes that You have performed the steps in this section You have read the safety information that shipped with your computer When replacing a component you have already removed the original if installed K NOTE The color of your computer and certain components may appear differently than shown in this document Recommended Tools The procedures in this document may require the following tools Small flat blade screwdriver Phillips screwdriver Small plastic scribe Flash BIOS update see the Dell Support website at support dell com Before Working on Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION Only a certified service technician should perform repairs on your computer Damage due to servicing that is not authorized by Dell is not covered by your warranty CAUTION When you disconnect a cable pull on its connector or on its pull tab not on the cable itself Some cables have connectors with locking tabs if you are disconnecting this type of
127. hone or line in connectors on the back panel of the computer 13 If you removed a network adapter card and want to turn on the integrated network adapter a Enter system setup select System Configuration gt Integrated NIC and change the setting to Enabled See Entering System Setup b Connect the network cable to the integrated the back panel of the computer Installing a PCI Card in the Riser Card Cage 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 If applicable remove the card installed in the SLOT2 connector on the system board 4 Remove the riser card cage a Check any cables connected to cards through the back panel openings Disconnect any cables that will not reach the riser card cage once they are removed from the computer b Gently pull on the handle and lift the riser card cage up and away from the computer 1 riser card cage 2 handle 5 If you are installing a new card remove the filler bracket to create an empty card slot opening If you are replacing a card that is already installed in the computer remove the card If necessary disconnect any cables connected to the card Grasp the card by its corners and ease it out of its connector NOTE See the documentation that came with the card for information on configuring the card making internal connections or customizing it for your computer 6 Prepare the new card for instal
128. hone connector see the Setup and Quick Reference Guide that ships with your computer for more information Adjust the Windows volume control Click or double click the speaker icon in the lower right corner of your screen Ensure that the volume is turned up and that the sound is not muted Video and Monitor Problems WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance CAUTION If your computer came with a PCI graphics card installed removal of the card is not necessary when installing additional graphics cards however the card is required for troubleshooting purposes If you remove the card store it in a safe and secure location For information about your graphics card go to support dell com The screen is blank K NOTE For troubleshooting procedures see the monitor s documentation The screen is difficult to read Check the monitor cable connection Ensure that the monitor cable is connected to the correct graphics card for dual graphics card configurations If you are using the optional DVI to VGA adapter ensure that the adapter is correctly attached to the graphics card and monitor Ensure that the monitor cable is connected as shown on the setup diagram for your computer Remove any video extension cables and conn
129. ical drive K NOTE Due to the limited number of drive bays and controllers on this computer you will not be able to connect all supported devices at once K NOTE If you will be operating your computer without an optical drive or a 3 5 inch device floppy drive or media card reader installed the appropriate drive bay insert must be installed in place of the drive Contact Dell if you need a drive bay insert afra General Drive Installation Guidelines SATA connectors on the system board are labeled SATAO and SATA1 Hard drives must be connected to the lower numbered SATA connectors Any other SATA device like an optical drive must be connected to the remaining SATA connectors numbered higher than the one that the hard drive is connected to For example if you have a SATA hard drive and a SATA optical drive connect the hard drive to the SATAO connector and connect the SATA optical drive to the SATA1 connector see System Board Components for the location of the SATA connectors on the system board Connecting Drive Cables When you install a drive you connect two cables a DC power cable and a data interface cable to the back of the drive Data I nterface Connectors SATA Connector data interface cable connector data interface connector Power Cable Connectors pare gone Connecting and Disconnecting Drive Cables When removing a cable with a pull tab grasp the colored pull tab and pull until the connector
130. il it clicks into place 7 Replace the floppy drive and optical drive 10 11 12 13 14 15 16 Check all connectors to be certain that they are properly cabled and firmly seated Replace the computer cover see Replacing the Computer Cover If the drive you just installed is the primary drive insert a bootable medium into your boot drive Turn on the computer Enter system setup and update the SATA port option under the Drives option list see Entering System Setup Exit system setup and reboot the computer Partition and logically format your drive K NOTE For instructions see the documentation that came with your operating system Test the hard drive by running the Dell Diagnostics see Dell Diagnostics Install your operating system on the hard drive K NOTE For instructions see the documentation that came with your operating system Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual System Fan System Fan WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpai
131. in Check your network settings Contact your network administrator or the person who set up your network to verify that your network settings are correct and that the network is functioning Run the Hardware Troubleshooter See Hardware Troubleshooter Power Problems WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance If the power light is blue and the computer is not responding See Diagnostic Lights If the power light is blinking green The computer is in standby mode Press a key on the keyboard move the mouse or press the power button to resume normal operation If the power light is off The computer is either turned off or is not receiving power Reseat the power cable in the power connector on the back of the computer and the electrical outlet Bypass power strips power extension cables and other power protection devices to verify that the computer turns on properly Ensure that any power strips being used are plugged into an electrical outlet and are turned on Ensure that the electrical outlet is working by testing it with another device such as a lamp Ensure that the main power cable and front panel cable are securely connected to the system board see the System Board Components section for your com
132. in Removing an Optical Drive and remove the three shoulder screws from the existing drive 4 Insert the three shoulder screws into the sides of the new drive and tighten them a g 5 Connect the power and data cables to the drive 6 Align the shoulder screws with the screw guides and slide the drive into the bay until it clicks into place 7 Check all cable connections and fold cables out of the way to provide airflow for the fan and cooling vents 8 Replace the computer cover see Replacing the Computer Cover 9 Enter system setup and select the appropriate Drive option to enable the drive see Entering System Setup on page 79 10 Verify that your computer works correctly by running the Dell Diagnostics see Dell Diagnostics Floppy Drive WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover NOTE If you will be operating your computer without an optical drive or a 3 5 inch device floppy drive installed the appropriate drive bay insert must be installed in place of the drive Contact Dell if you need a drive bay insert Removing a Floppy Drive 1 Follow the procedures in Working on Your C
133. ing the Computer Cover Notes Cautions and Warnings K NOTE A NOTE indicates important information that helps you make better use of your computer L CAUTION A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed WARNING A WARNING indicates a potential for property damage personal injury or death If you purchased a Dell n Series computer any references in this document to Microsoft Windows operating systems are not applicable Information in this document is subject to change without notice 2008 2009 Dell Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo OptiPlex TravelLite OpenManage and StrikeZone are trademarks of Dell Inc Intel and SpeedStep are registered trademarks of Intel Corporation in the U S and other countries Microsoft Windows Windows Vista and the Windows Start button are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Computrace is a registered trademark of Absolute Software Corp Citrix is a registered trademarks of Citrix Systems Inc and or one or more of its subsidiaries and may be registered in the United States Patent and Trademark Office and in other countries Bluetooth is a trademark owned by Bluetooth SIG Inc and is used by Dell Inc under license E
134. interface for hard drives and CD drives EMI electromagnetic interference Electrical interference caused by electromagnetic radiation ENERGY STAR Environmental Protection Agency requirements that decrease the overall consumption of electricity EPP enhanced parallel port A parallel connector design that provides bidirectional data transmission ESD electrostatic discharge A rapid discharge of static electricity ESD can damage integrated circuits found in computer and communications equipment expansion card A circuit board that installs in an expansion slot on the system board in some computers expanding the capabilities of the computer Examples include video modem and sound cards expansion slot A connector on the system board in some computers where you insert an expansion card connecting it to the system bus ExpressCard A removable I O card adhering to the PCMCIA standard Modems and network adapters are common types of ExpressCards ExpressCards support both the PCI Express and USB 2 0 standard Express Service Code A numeric code located on a sticker on your Dell computer Use the Express Service Code when contacting Dell for assistance Express Service Code service may not be available in some countries extended display mode A display setting that allows you to use a second monitor as an extension of your display Also referred to as dual display mode extended PC Card A PC
135. it 3 Loosen the captive screws on each side of the heat sink assembly 4 Rotate the heat sink assembly upward and remove it from the computer Lay the heat sink down on its top with the thermal grease facing upward 1 heat sink assembly 2 captive screw housings 2 ra CAUTI ON Unless a new heat sink assembly is required for the new processor reuse the original heat sink assembly when you replace the processor 5 Open the processor cover by sliding the release lever from under the center cover latch on the socket Then pull the lever back to release the processor A CAUTI ON When replacing the processor do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket center cover latch processor cover processor 4 socket release lever io 6 Gently remove the processor from the socket Leave the release lever extended in the release position so that the socket is ready for the new processor Installing the Processor Fan CAUTI ON Ground yourself by touching an unpainted metal surface on the back of the computer A CAUTI ON When replacing the processor do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Unpack the new processor being careful not to touch the underside of the proces
136. ition can contain multiple logical drives PC Card A removable I O card adhering to the PCMCIA standard Modems and network adapters are common types of PC Cards PCI peripheral component interconnect PCI is a local bus that supports 32 and 64 bit data paths providing a high speed data path between the processor and devices such as video drives and networks PCI Express A modification to the PCI interface that boosts the data transfer rate between the processor and the devices attached to it PCI Express can transfer data at speeds from 250 MB sec to 4 GB sec If the PCI Express chip set and the device are capable of different speeds they will operate at the slower speed PCMCIA Personal Computer Memory Card International Association The organization that establishes standards for PC Cards PIO programmed input output A method of transferring data between two devices through the processor as part of the data path pixel A single point on a display screen Pixels are arranged in rows and columns to create an image A video resolution such as 800 x 600 is expressed as the number of pixels across by the number of pixels up and down Plug and Play The ability of the computer to automatically configure devices Plug and Play provides automatic installation configuration and compatibility with existing hardware if the BIOS operating system and all devices are Plug and Play compliant POST power on sel
137. k to Contents Page Dell OptiPlex 760 Service Manual Speakers Speakers WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis Installing a Speaker 1 Follow the procedures in Working on Your Computer 2 Remove the cover of your computer see Removing the Computer Cover 3 Insert the speaker into the chassis of the computer 4 Connect the cables to the system board 5 Replace the computer cover 6 Turn on power to the computer Removing a Speaker 1 Follow the procedures in Working on Your Computer 2 Remove the cover of your computer see Removing the Computer Cover 3 Disconnect the cables from the system board 4 Remove the speaker from the chassis of the computer 5 Replace the computer cover 6 Turn on power to the computer Back to Contents Page Back to Contents Page Small Form Factor Dell OptiPlex 760 Service Manual Removing the Computer Cover inside Your Computer System Board Components Removing the Computer Cover WARNING Be
138. l I O Panel Removing the I O Panel A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the optical drive and floppy drive from the drive bays if installed see Drives 4 Remove the hard drive See Removing a Hard Drive 5 Remove the processor heat sink assembly see Heat Sink and Processor 6 Remove the heat sink base by loosening the two screws that retain the heat sink base to the system board 7 Remove the system fan see Removing the System Fan 8 Disconnect the air sensor cable from the computer chassis by pressing the release tabs on either side of the air sensor 9 From inside the computer cover remove the mounting screw that secures the I O panel to the computer 10 Using a small flat blade screwdriver gently pry the I O panel bracket to release its circular tabs from the two holes in the chassis that secure it 11 Remove the I O panel from the computer Replacing the I O Panel To replace the I O panel follow the removal procedures in the reverse order K
139. lation WARNING Some network adapters automatically start the computer when they are connected to a network To guard against electrical shock be sure to unplug your computer from its electrical outlet before installing any cards 7 Press the release tab to raise the card retention latch 3 Jere da_ cardedge connector oa S 8 Insert the card firmly into the card connector on the riser card cage 9 Lower the card retention latch and press it into place securing the card s in the computer 10 Replace the riser card cage a Align the tabs in the side of the riser card cage with the slots on the side of the computer and slide the riser card cage down into place b Ensure that the riser cards are fully seated in the connectors on the system board riser card cage 2 1 riser cards la system board connectors 11 Reconnect any cables that you removed in step 4 12 Connect any cables that should be attached to the card CAUTION Do not route card cables over or behind the cards Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment 13 Replace the computer cover see Replacing the Computer Cover reconnect the computer and devices to electrical outlets and then turn them on 14 If you installed a sound card a Enter system setup select System Configuration gt Miscellaneous Devices and change the Audio setting to Disabled see Entering System
140. lay The technology used by portable computer and flat panel displays LED light emitting diode An electronic component that emits light to indicate the status of the computer local bus A data bus that provides a fast throughput for devices to the processor LPT line print terminal The designation for a parallel connection to a printer or other parallel device M Mb megabit A measurement of memory chip capacity that equals 1024 Kb Mbps megabits per second One million bits per second This measurement is typically used for transmission speeds for networks and modems MB megabyte A measurement of data storage that equals 1 048 576 bytes 1 MB equals 1024 KB When used to refer to hard drive storage the term is often rounded to 1 000 000 bytes MB sec megabytes per second One million bytes per second This measurement is typically used for data transfer ratings media bay A bay that supports devices such as optical drives a second battery or a Dell TravelLite module memory A temporary data storage area inside your computer Because the data in memory is not permanent it is recommended that you frequently save your files while you are working on them and always save your files before you shut down the computer Your computer can contain several different forms of memory such as RAM ROM and video memory Frequently the word memory is used as a synonym for RAM memory addres
141. le Memory Memory Speed Memory Channel Mode and Memory Technology Processor information Displays the Processor Type Processor Speed Processor Bus Speed Processor L2 cache Processor ID PCI information Displays available slots on the system board Date Time Displays the system date and time Changes to the system date and time take effect immediately Boot Sequence Specifies the order in which the computer attempts to find an operating system from the devices specified in this list Drives Diskette drive Identifies and defines the floppy drive attached to the FLOPPY connector on the system board as Disable USB Internal default Read Only SATA Operation Configures the operating mode of the integrated hard drive controller to AHCI default ATA Legacy S M A R T Reporting Enables or disables integrated drive errors to be reported during system startup This option is disabled by default Drives Enables or disables the SATA or ATA drives connected to the system board System Configuration Integrated NIC Enables or disables the integrated network card You can set the integrated NIC to Enable default Disable Enable with PXE Enable with I mageSever USB Controller Enables or disables the integrated USB controller You can set the USB controller to Enable default Disable No boot Parallel Port Identifies and defines the parallel port settings You can set the parallel por
142. le to the network adapter card s connectors Do not connect the network cable to the integrated network connector on the back panel of the computer 14 Install any drivers required for the card as described in the card documentation Removing a PCI Express x16 Card or DVI Card 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently lift the release tab on the card retention latch from the inside and pivot the latch open 4 If necessary disconnect any cables connected to the card 5 Press the lever with your thumb until you release the securing tab If you are removing a PCI Express x16 card go to step 6 If you are removing a DVI card go to step 7 6 While pressing the lever pull the card up and out of the card connector securing slot not all cards 4 securing tab RT Ty 7 While pressing the lever pull the removal pull tab up and remove the card out of the card connector PCI Express x16 DVI card lever a a OUO ar a e 8 If you are removing the card permanently install a filler bracket in the empty card slot opening K NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintain the airflow that cools your computer 9 Before you close the card retention mechanism ensure that The tops of all cards an
143. lease lever A CAUTI ON When replacing the processor do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket 8 Gently remove the processor from the socket Leave the release lever extended in the release position so that the socket is ready for the new processor I nstalling the Processor A CAUTI ON Ground yourself by touching an unpainted metal surface on the back of the computer A CAUTI ON When replacing the processor do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 If you are installing a new processor unpack the new processor being careful not to touch the underside of the processor A CAUTI ON You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer 4 Ifthe release lever on the socket is not fully extended move it to that position 5 Orient the front and rear alignment notches on the processor with the front and rear alignment notches on the socket 6 Align the pin 1 corners of the processor and socket 1 processor cover s orocessor 4 processorsocket s center cover atch 6 release lever irontalgnment notch a socket and processor pit Indicator ofrer anomenen E CAUTI ON To
144. let before removing the computer cover ran CAUTI ON To avoid damage to the drive do not set it on a hard surface I nstead set the drive on a surface such as a foam pad that will sufficiently cushion it Removing a Hard Drive 1 If you are replacing a hard drive that contains data you want to keep back up your files before you begin this procedure 2 Check the documentation for the drive to verify that it is configured for your computer 3 Follow the procedures in Working on Your Computer 4 Remove the computer cover see Removing the Computer Cover 5 Disconnect the power and data cables from the hard drive and system board data cable hard drive system board connector 3 power cabe PC 6 Press in on the blue release tabs on each side of the hard drive and slide the drive up and out of the computer 1 hard drive 2 release tabs 2 Installing a Hard Drive 1 Unpack the replacement hard drive and prepare it for installation 2 Check the documentation for the drive to verify that it is configured for your computer 3 If your replacement hard drive does not have the plastic hard drive bracket attached remove the bracket from the existing drive by unsnapping it from the drive P a 1 Ls gt 1 hard drive 2 hard drive bracket 4 Gently spread the sides of the drive bracket and slide the hard drive into the bracket aligning the drive with the bracket pins until the drive clicks into place
145. liance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover A CAUTI ON To avoid damage to the drive do not set it on a hard surface I nstead set the drive on a surface such as a foam pad that will sufficiently cushion it A CAUTI ON If you are replacing a hard drive that contains data you want to keep back up your files before you begin this procedure 1 Check the documentation for the drive to verify that it is configured for your computer 2 Follow the procedures in Working on Your Computer 3 Remove the computer cover see Removing the Computer Cover 4 Remove the plastic hard drive bracket from the inside of the hard drive bay by squeezing the release tabs and gently pulling the bracket up and out of the bay 5 Gently spread the sides of the drive bracket and slide the hard drive into the bracket aligning the drive with the bracket pins until the drive clicks into place 1 hard drive 2 hard drive bracket 3 pins 6 Carefully slide the new hard drive into the bay until it clicks into place 7 Connect the power cable to the drive 8 Locate an unused SATA connector on the system board and attach a data cable to this connector and to the second hard drive data cable hard drive system board connector 3 power cabe PC 9 Replace the computer cover see Replacing the Comp
146. loppy drive and restart your computer Not enough memory or resources Close some programs and try again Close all windows and open the program that you want to use In some cases you may have to restart your computer to restore computer resources If so run the program that you want to use first Operating system not found Contact Dell see Contacting Dell IEEE 1394 Device Problems WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance K NOTE Your computer supports only IEEE 1394a standard Ensure that the cable for the I EEE 1394 device is properly inserted into the device and into the connector on the computer Ensure that the I EEE 1394 device is enabled in system setup See System Setup Options Ensure that the I EEE 1394 device is recognized by Windows Windows XP 1 Click Start and click Control Panel 2 Under Pick a Category click Performance and Maintenance System System Properties Hardware Device Manager Windows Vista 1 Click Start Control Panel Hardware and Sound 2 Click Device Manager If your IEEE 1394 device is listed Windows recognizes the device If you have problems with a Dell I EEE 1394 device Contact Dell see Contacting Dell If you have problems with an I
147. low the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently lift the release tab on the card retention latch all the way up 2 retention latch 1 system board connector a releasetab 4 If you are installing a card in an empty card connector on the system board remove the filler bracket to create a card slot opening at the back of the computer Then continue with step 6 5 If you are installing a card to replace one already installed in the computer remove the installed card see Removing a PCI Card 6 Prepare the card for installation NOTE See the documentation that came with the card for information on configuring the card making internal connections or customizing it for your computer release tab on card retention latch 2 card edge connector a ears connector WARNING Some network adapters automatically start the computer when they are connected to a network To guard against electrical shock be sure to unplug your computer from its electrical outlet before installing any cards 7 If you are installing a PCI Express x16 card hold the securing tab release lever away from the card connector as you insert the new card into the connector slot 8 Place the card in the connector and press down firmly Using the following illustration as a guide ensure that the card is fully seated in the slot card fully seated card not fully seated bracket wi
148. ls and restart the computer If the computer boots add the peripheral back one by one until you find the faulty one Contacting Dell If the problem persists the system board is probably bad Contact Dell see Contacting Dell Remove the coin cell battery for one minute reinstall the battery and restart If the problem persists contact Dell see Contacting Dell Ensure that the display is connected and powered on If the problem persists contact Dell see Contacting Dell Reseat the processor see Processor information for your computer If the problem persists contact Dell see Contacting Dell If two or more memory modules are installed remove the modules and then reinstall one module see Memory Restart the computer If the computer starts normally continue to install additional memory modules one at a time until you have identified a faulty module or reinstalled all modules without error Steady If available install working memory of the same type into your computer see Memory Green Ifthe problem persists contact Dell see Contacting Dell A possible graphics card failure has Reseat any installed graphics cards see the Cards section for your computer occurred If available install a working graphics card into your computer If the problem persists contact Dell see Contacting Dell Q A possible floppy drive or hard drive Reseat all power and data cables failure has occurred Steady Green
149. more of its subsidiaries and may be registered in the United States Patent and Trademark Office and in other countries Bluetooth is a trademark owned by Bluetooth SIG Inc and is used by Dell Inc under license ENERGY STAR is a registered trademark of the U S Environmental Protection Agency As an ENERGY STAR partner Dell Inc has determined that this product meets the ENERGY STAR guidelines for energy efficiency February 2009 Rev A01 Back to Contents Page Back to Contents Page Troubleshooting Dell OptiPlex 760 Service Manual Tools Dell Diagnostics Solving Problems Dell Technical Update Service WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance A WARNING Always unplug your computer from the electrical outlet before opening the cover Tools Power Lights The power button light located on the front of the computer illuminates and blinks or remains solid to indicate different states If the power light is green and the computer is not responding see Diagnostic Lights If the power light is blinking green the computer is in standby mode Press a key on the keyboard move the mouse or press the power button to resume normal operation If the power light is off the computer is either turned off or is
150. mputer Cover 3 Gently squeeze the tabs securing the power button assembly to the front of the chassis and pull the assembly away from the front of the chassis 4 Lift the power button up until the alignment tab on the bottom of the power button assembly is free from the chassis and remove the power button from the chassis Replacing the Power Button 1 Align the tab on the bottom of the power button assembly with the corresponding slot in the front of the chassis and push the tab into the slot 2 Gently squeeze the tabs on the power button and push the button into the chassis until the tabs lock into place 3 Replace the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Speakers Speakers WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis Removing a Speaker 1 Follow the procedures in Working on Your Computer 2 Remove the cover of your computer see Removing the Computer Cover 3 Press the speaker r
151. n see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A CAUTI ON To avoid electrostatic discharge and damage to internal components ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover for your specific computer 3 Press out the securing clip at each end of the memory module connector memory connector closest to processor securing clips 2 memory connector 2 4 Align the notch on the bottom of the module with the crossbar in the connector Ea CAUTION To avoid damage to the memory module press the module straight down into the connector while you apply equal force to each end of the module 5 Insert the module into the connector until the module snaps into position If you insert the module correctly the securing clips snap into the cutouts at each end of the module 6 Replace the computer cover see Replacing the Computer Cover A CAUTI ON To connect a network cable first plug the cable into the network port or device and then plug it into the computer 7 Connect your computer and devices to electrical outlets and turn them on 8 When the message appears stating that memory size has changed press lt F1 gt to continue 9 Log on to your computer 10 Right click the My Computer ic
152. n Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the drive panel by sliding the drive release latch downward to open the panel and then remove it from the hinges 4 Disconnect the cable from the back of the media card reader 1 media card reader 2 drive release latch 5 Grasp the sliding plate lever and slide it towards the bottom of the computer until the drive panel snaps open while holding the lever in place slide the media card reader out of the computer Installing the Media Card Reader 1 If you are replacing a media card reader remove the shoulder screws from the existing drive and attach the screws to the replacement media card reader 4 NOTE If you are replacing an existing floppy drive with a media card reader ensure you disable the floppy before installing the media card reader Boot your computer and enter system setup see Entering System Setup Use the Diskette Drive option to disable the floppy drive Follow instructions in Removing the Floppy Drive 2 If you are installing a new media card reader remove the drive panel insert for the 3 5 inch drive bay remove the shoulder screws from the inside of the drive panel insert and attach the screws to the new drive 3 Align the shoulder screws on the media card reader with the shoulder screw slots and gently slide it into the bay until it clicks into place media card reader shoulder screws 4
153. n Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover K NOTE For PCI card locations see System Board Components 3 Gently lift the release tab on the card retention latch from the inside and pivot the latch open 4 If you are installing a new PCI Express x16 card or DVI card remove the filler bracket to create a card slot opening 5 If you are replacing a PCI Express x16 card or DVI card remove the card see Removing a PCI Express x16 Card or DVI Card If necessary disconnect any cables connected to the card 6 Prepare the card for installation WARNI NG Some network adapters automatically start the computer when they are connected to a network To guard against electrical shock be sure to unplug your computer from its electrical outlet before installing any cards NOTE See the documentation that came with the card for information on configuring the card making internal connections or customizing it for your computer 7 Place the card in the connector and press down firmly Ensure that the card is fully seated in the slot 1 PCI Express x16 card 2 PCI Express x16 card connector PCI Express x16 DVI card DVI card connector 3 PCI Express x16 card connector card fully seated card not fully seated A bracket within slot A bracket caught outside of slot CAUTI ON Do not route card cables over the cards Cables routed over the cards can prevent the computer c
154. n the top of the adapter or filler bracket fits around the alignment guide 7 Close the card retention latch and gently press until it snaps into place CAUTION Do not route cables over any installed cards Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment 8 Connect the adapter cable to the serial port adapter connector SERIAL2 on the system board see System Board Components for connector locations K NOTE See the documentation for the PS 2 serial port adapter for information about the cable connections 9 Replace the computer cover see Replacing the Computer Cover Removing a PS 2 Serial Port Adapter 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently push the release tab on the card retention latch from the inside to pivot the latch open The latch will remain in the open position card retention latch alignment guide 4 Disconnect the PS 2 serial adapter cable from the system board see System Board Components 5 If necessary disconnect any external cables connected to the adapter 6 Ease the PS 2 serial port adapter bracket out of its retention slot 7 If you are removing the adapter permanently install a filler bracket in the empty card slot opening 4 NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the com
155. nate system password However the system password cannot be used in place of the administrator password 1 Enter system setup see Entering System Setup and verify that Admin Password is set to Not Set 2 Select Admin Password and press lt Enter gt 3 Type your new administrator password You can use up to 32 characters To erase a character when entering your password press lt Backspace gt The password is case sensitive Certain key combinations are not valid If you enter one of these invalid combinations the speaker emits a beep As you press each character key or the spacebar for a blank space a placeholder appears 4 Type your new password a second time to confirm and press OK button The password setting changes to Set 5 Exit system setup A change to Admin Password becomes effective immediately no need to restart the computer Operating Your Computer With an Administrator Password Enabled When you enter system setup the Admin Password option is highlighted prompting you to type the password If you do not type the correct password the computer lets you view but not modify system setup options K NOTE You can use Password Status in conjunction with Admin Password to protect the system password from unauthorized changes Deleting or Changing an Existing Administrator Password To change an existing administrator password you must know the administrator password 1 Enter system setup see Entering System
156. nd special programs Using smart cards can improve computer security by combining something a user has the smart card with something only the user should know a PIN to provide more secure user authentication than passwords alone The fingerprint reader is a device that you can use to help keep your Dell computer secure The reader is a strip sensor located on a peripheral device for your computer When you slide your finger over the reader it uses your unique fingerprint to authenticate your user identity Hyperthreading and Multi Core Technology Hyperthreading is an Intel technology that can enhance overall computer performance by allowing one physical processor to function as two logical processors that are capable of performing certain tasks simultaneously Multi core processors contain two or more physical computational units inside a single CPU package thereby increasing computing efficiency and multi tasking ability Intel has implemented this technology in its Dual Core and Quad Core processors These processors have two and four computational units respectively It is recommended that you use the Microsoft Windows XP Service Pack 1 SP1 or higher or Windows Vista operating systems which are optimized to take advantage of these technologies While many programs can benefit from hyperthreading and multi core technology some programs may have not been optimized for them and may require an update from the software manufacturer Contact the s
157. nes for energy efficiency Models DCTR DCNE DCSM and DCCY February 2009 Rev A01 Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Cards Cards A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis A CAUTI ON Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintains the airflow that cools your computer Your Dell computer provides the following connectors on the system board for PCI and PCI Express cards Two connectors for low profile PCI cards One connector for a low profile PCI Express x16 card K NOTE Your Dell computer includes only PCI and PCI Express card connectors ISA cards are not supported PCI Cards I jl Installing a PCI Card If you are replacing a PCI card remove the current driver for the card from the operating system See the documentation that came with the card for information 1 Fol
158. ng Monitor the status of your computer such as listening for thermal alerts from temperature probes or hard drive failure alerts from storage devices A computer that has Dell OpenManage Client Instrumentation set up on a network that uses IT Assistant is a managed computer For information about Dell OpenManage Client Instrumentation see the Dell OpenManage Client Instrumentation User s Guide available on the Dell Support website at support dell com Dell Client Manager DCM K NOTE Either Dell Client Manager DCM or Dell OpenManage applications are available for your computer to help meet your system management needs See Dell OpenManage Applications for information about Dell OpenManage products Dell Client Manager DCM Console The Dell Client Manager DCM console allows you to configure manage and monitor Dell computers on a corporate network via a simple GUI interface Through the DCM console you can manage assets configurations events alerts status and security for computers equipped with industry standard management software For information about standards supported by DCM see www altiris com For information about the DCM console see www altiris com or the Dell Support website at support dell com The DCM console also allows you to Access information about your computer such as how many processors it has and what operating system it is running Monitor the status of your computer such as listenin
159. ng and the operating system logo appears continue to wait until you see the Microsoft Windows desktop Then shut down your computer and try again System Setup Screen The System Setup screen displays current or changeable configuration information for your computer Information on the screen is divided into two areas the menu and the main window Options List This field appears on the left side of the Option Field This field contains system setup window The field is a scrollable list information about each option In containing features that define the configuration of this field you can view your current your computer including installed hardware power settings and make changes to your conservation and security features settings Use the Tab and Up Down arrow keys on your keyboard to navigate or click to navigate using the mouse System Setup Options K NOTE Depending on your computer and installed devices the items listed in this section may not appear or may not appear exactly as listed A WARNING eSATA is designed to function only if the SATA Operation mode in system Setup BIOS is set to either I RRT or AHCI If it is set to ATA the eSATA functionality is lost though the connector can still be used as a USB port General System Board Displays the following information System information Displays BIOS Info System Info and the Service Tag Memory information Displays Installed Memory Usab
160. nism be disabled Image Server Lookup Method Specifies how the I mageServer looksup the server address Static IP DNS NOTE You must set the Integrated NIC to Enable with I mageServer to set the Lookup Method ImageServer IP Specifies the primary static IP address of the mageServer with which the client software communicates The default IP address is 255 255 255 255 NOTE You must set the Integrated NIC to Enable with I mageServer to set the ImageServer IP ImageServer Port Specifies the primary IP port of the image server with which the client software communicates The default IP port is 06910 Client DHCP Specifies how the client obtains the IP address Static IP DHCP default Client IP Specifies the static IP address of the client The default IP address is 255 255 255 255 NOTE To set Client IP you must set Client DHCP to Static IP Client SubnetMask Specifies the subnet mask for the client The default setting is 255 255 255 255 NOTE To set Client SubnetMask you must set Client DHCP to Static IP Client Gateway Specifies the gateway IP address for the client The default setting is 255 255 255 255 NOTE To set Client SubnetMask you must set Client DHCP to Static IP License Status Displays the current license status Post Behavior When enabled default your computer starts more quickly because it skips certain configurations and tests Enables or dis
161. nnect cables from the system board drives CD DVD floppy and media card reader power supply hard arive a system board heat sink assembly pt System Board Components HIFRLFE ILRI IT internal speaker connector processor connector CPU INT_SPKR processor power connector memory module connectors DIMM_1 12VPOWER DIMM_2 DIMM_3 DIMM_4 password jumper PSWD 6 SATA connectors SATAO and SATA1 front panel connector power connector MICRO_ PWR FRONTPANEL fan connector FAN_HDD intrusion switch connector INTRUDER internal USB connector 12 service mode disable jumper INT_USB 13 RTC reset jumper RTCRST PCI connector SLOT2 15 PCI Express x16 connector 16 battery socket BATTERY SLOT1 17 PS 2 or serial connector 18 floppy drive connector DSKT2 SERIAL2 Back to Contents Page Dell OptiPlex 760 Service Manual Small Form Factor Computer About Your Computer Removing and Replacing Parts Inside Your Computer Working on Your Computer System Setup Removing the Computer Cover Advanced Features Chassis Intrusion Switch Troubleshooting Cards Getting Help Drives Glossary Heat Sink and Processor System Fan I O Panel Power Supply Speakers Memory Battery Replacing the System Board Replacing the Computer Cover Notes Cautions and Warnings K NOTE A NOTE indicates important information that helps you make better use of your computer A CAUTI ON A C
162. not receiving power o Reseat the power cable into both the power connector on the back of the computer and the electrical outlet o If the computer is plugged into a power strip ensure that the power strip is plugged into an electrical outlet and that the power strip is turned on o Bypass power protection devices power strips and power extension cables to verify that the computer turns on properly o Ensure that the electrical outlet is working by testing it with another device such as a lamp o Ensure that the main power cable and front panel cable are securely connected to the system board See the following o Mini Tower System Board Components o Desktop System Board Components o Small Form Factor System Board Components o Ultra Small Form Factor System Board Components If the power light is blinking amber the computer is receiving electrical power but an internal power problem may exist o Ensure that the voltage selection switch is set to match the AC power at your location if applicable o Ensure that the processor power cable is securely connected to the system board See the following o Mini Tower System Board Components o Desktop System Board Components o Small Form Factor System Board Components o Ultra Small Form Factor System Board Components If the power light is steady amber a device may be malfunctioning or incorrectly installed o Remove and then reinstall the memory modules see Memory
163. nouts which occur when the voltage drops more than 20 percent below the normal AC line voltage level Network connections cannot be protected by surge protectors Always disconnect the network cable from the network connector during electrical storms SVGA super video graphics array A video standard for video cards and controllers Typical SVGA resolutions are 800 x 600 and 1024 x 768 The number of colors and resolution that a program displays depends on the capabilities of the monitor the video controller and its drivers and the amount of video memory installed in the computer S video TV out A connector used to attach a TV or digital audio device to the computer SXGA super extended graphics array A video standard for video cards and controllers that supports resolutions up to 1280 x 1024 SXGA super extended graphics array plus A video standard for video cards and controllers that supports resolutions up to 1400 x 1050 system board The main circuit board in your computer Also Known as the system board system setup A utility that serves as an interface between the computer hardware and the operating system System setup allows you to configure user selectable options in the BIOS such as date and time or system password Unless you understand what effect the settings have on the computer do not change the settings for this program T TAPI telephony application programming interface Enables Wind
164. nt time to cool before you touch it 2 Rotate the heat sink assembly upward and remove the assembly from the computer Lay the heat sink down on its top heat sink assembly captive screw housing 2 Installing the Heat Sink Assembly 1 Place the heat sink assembly back onto the heat sink assembly bracket 2 Rotate the heat sink assembly down towards the computer base and tighten the two captive screws CAUTION Ensure that the heat sink assembly is correctly seated and secure heat sink assembly heat sink assembly bracket 3 Replace the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual 1 0 Panel I O Panel Removing the I O Panel A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the cover K NOTE Note the routing of all cables before disconnecting them so that you can re route them correctly when installing the new I O panel 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the screw that secures the I O panel to the desktop computer A
165. ntact the printer s manufacturer Check the printer documentation See the printer documentation for setup and troubleshooting information Ensure that the printer is turned on Check the printer cable connections See the printer documentation for cable connection information Ensure that the printer cables are securely connected to the printer and the computer Test the electrical outlet Ensure that the electrical outlet is working by testing it with another device such as a lamp Verify that the printer is recognized by Windows Windows XP 1 Click Start Control Panel Printers and Other Hardware gt View installed printers or fax printers 2 Ifthe printer is listed right click the printer icon 3 Click Properties Ports For a parallel printer ensure that the Print to the following port s setting is LPT1 Printer Port For a USB printer ensure that the Print to the following port s setting is USB Windows Vista Click Start Control Panel Hardware and Sound Printer If the printer is listed right click the printer icon Click Properties and click Ports Adjust the settings as needed BO ee ae Reinstall the printer driver See the printer documentation for information on reinstalling the printer driver Scanner Problems A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices informati
166. nted metal surface on the computer chassis Removing the System Fan 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the heat sink assembly see Removing the Processor 4 Disconnect the system fan power cable from the system board retention tab system fan power cable 5 Pull the retention tab at the base of the fan assembly 6 Slide the system fan towards the back of the computer and lift it to remove the system fan assembly from the computer Installing the System Fan 1 To install the system fan follow the removal procedure in the reverse order 2 Close the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Heat Sink Assembly Heat Sink Assembly WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover Removing the Heat Sink Assembly 1 Loosen the captive screws on each side of the heat sink assembly WARNING Despite having a plastic shield the heat sink assembly may be very hot during normal operation Be sure that it has had sufficie
167. o be exchanged between a remote management console and a client computer that is in a pre operating system or operating system absent state RMCP messages can be sent to instruct a client computer to start up shut down or restart For more information about Dell s ASF implementation see the ASF User s Guide and the ASF Administrator s Guide which are available on the Dell Support website at support dell com Dell OpenManage Applications K NOTE Either Dell OpenManage applications and Dell Client Manager DCM are available for your computer to help meet your system management needs See Dell Client Manager DCM for information about DCM You can manage your computer via IT Assistant and Dell OpenManage Client Instrumentation OMCI IT Assistant configures manages and monitors computers and other devices on a corporate network IT Assistant manages assets configurations events alerts and security for computers equipped with industry standard management software It supports instrumentation that conforms to SNMP and CIM industry standards For information on IT Assistant see the Dell OpenManage IT Assistant User s Guide available on the Dell Support website at support dell com Dell OpenManage Client Instrumentation is software that enables remote management programs such as IT Assistant to do the following Access information about your computer such as how many processors it has and what operating system it is runni
168. oard by prying off the socket or by breaking circuit traces on the system board E CAUTI ON To avoid damage to the battery connector you must firmly support the connector while removing the battery 5 Remove the system battery a Support the battery connector by pressing down firmly on the positive side of the connector b While supporting the battery connector press the battery tab away from the positive side of the connector and pry the battery it up out of the securing tabs at the negative side of the connector 1 system battery 2 positive side of battery connector patery socket tab 4 battery socket 6 Install the new system battery a Support the battery connector by pressing down firmly on the positive side of the connector b Hold the battery with the facing up and slide it under the securing tabs at the positive side of the connector c Press the battery straight down into the connector until it snaps into place 7 Replace the computer cover see Replacing the Computer Cover 8 Enter system setup see Entering System Setup and restore the settings you recorded in step 1 9 Properly dispose of the old battery as described in the safety instructions that ship with your computer Back to Contents Page Back to Contents Page Working on Your Computer Dell OptiPlex 760 Service Manual Recommended Tools Before Working on Your Computer After Working on Your Computer T
169. of a DVD Data can be recorded only once onto a DVD R Once recorded the data cannot be erased or written over DVD R technology is different from DVD R technology DVD R DVD recordable A recordable version of a DVD Data can be recorded only once onto a DVD R Once recorded the data cannot be erased or written over DVD R technology is different from DVD R technology DVD RW DVD rewritable A rewritable version of a DVD Data can be written to a DVD RW disc and then erased and written over rewritten DVD RW technology is different from DVD RW technology DVD RW DVD rewritable A rewritable version of a DVD Data can be written to a DVD RW disc and then erased and written over rewritten DVD RW technology is different from DVD RW technology DVD RW drive drive that can read DVDs and most CD media and write to DVD RW rewritable DVDs media DVI digital video interface A standard for digital transmission between a computer and a digital video display ECC error checking and correction A type of memory that includes special circuitry for testing the accuracy of data as it passes in and out of memory ECP extended capabilities port A parallel connector design that provides improved bidirectional data transmission Similar to EPP ECP uses direct memory access to transfer data and often improves performance EIDE enhanced integrated device electronics An improved version of the IDE
170. oftware manufacturer for updates and information about using hyperthreading or multi core technology with your software To determine if your computer is using hyperthreading technology check the system setup option for hyperthreading see System Setup Power Management for Windows XP and Windows Vista Options in Windows XP The Microsoft Windows XP power management features can reduce the amount of electricity your computer uses when it is on and you are not using it You can reduce power to just the monitor or the hard drive or you can use standby mode or hibernate mode to reduce power to the entire computer When the computer exits from a power conservation mode it returns to the operating state it was in prior to entering the mode NOTE Windows XP Professional includes security and networking features not available in Windows XP Home Edition When a Windows XP Professional computer is connected to a network different options related to security and networking appear in certain windows K NOTE The procedures to activate the standby and hibernate modes may vary according to your operating system Standby Mode Standby mode conserves power by turning off the display and the hard drive after a designated period of time known as a time out When the computer exits from standby mode it returns to the operating state it was in prior to entering standby mode A CAUTION If your computer loses power while in standby mode it may lose data
171. om the system board see System Board Components 6 Grasp the PS 2 serial port adapter bracket by its top corners and ease it out of its connector 7 If you are removing the adapter permanently install a filler bracket in the empty card slot opening NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets also keep dust and dirt out of your computer 8 Before you close the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 9 Secure the card s by closing the card retention latch and snapping it into place 10 Replace the riser card cage a Align the tabs in the side of the riser card cage with the slots on the side of the computer and slide the riser card cage down into place b Ensure that the riser card connectors are fully seated in the connectors on the system board c Rotate the riser card cage handle to the down position 11 Replace the computer cover see Replacing the Computer Cover 12 Uninstall the adapter s driver See the documentation that came with the adapter for instructions Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Processor Processor A WARNING Before working inside your computer read the safety information that shippe
172. omepage at www dell com regulatory_ compliance ras CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Disconnect the DC power cables from the system board and the drives Note the routing of the DC power cables underneath the tabs in the computer chassis as you remove them from the system board and drives You must route these cables properly when you replace them to prevent them from being pinched or crimped 4 Remove the four screws that attach the power supply to the back of the computer chassis 5 Press the release button located on the floor of the computer chassis 6 Slide the power supply toward the front of the computer by approximately 1 inch 7 Lift the power supply up and out of the computer 8 Slide the replacement power supply into place 9 Replace the screws that secure the power supply to the back of the computer chassis 10 Reconnect the DC power cables to the power supply 11 Connect the AC power cable to the AC power connector 12 Replace the computer cover see Replacing the Computer Cover DC Power Connectors DC Power Connector P1 13 14 15 16 17 18 19 20 21 22 23 24
173. omputer 2 Remove the computer cover see Removing the Computer Cover NOTE Since the following steps do not require the complete removal of the optical drive it is not necessary to disconnect the cables connecting the optical drive 3 Remove the optical drive if one exists and carefully set it aside see Removing an Optical Drive A CAUTI ON Do not pull the drive out of the computer by the drive cables Doing so may cause damage to cables and the cable connectors 4 Pull up on the drive release latch and slide the floppy drive the back of the computer Then lift up to remove the drive from the computer drive release latch floppy drive 5 Disconnect the power and data cables from the back of the floppy drive 6 If you are not replacing the floppy drive or media card reader at this time install the floppy drive inserts see Replacing Drive Inserts Contact Dell if you need a drive bay insert Installing a Floppy Drive 1 If you are installing a new floppy drive a Remove the drive inserts see Removing Drive Inserts b Pull to remove the floppy drive insert that should be installed in the drive bay C Remove the four shoulder screws from the drive panel insert 2 If you are replacing an existing floppy drive Remove the four shoulder screws from the existing drive or media card reader 3 Insert the four shoulder screws into the sides of the new floppy drive and tighten them Q 4 Attach the powe
174. on see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance K NOTE If you need technical assistance for your scanner contact the scanner s manufacturer Check the scanner documentation See the scanner documentation for setup and troubleshooting information Unlock the scanner Ensure that your scanner is unlocked if the scanner has a locking tab or button Restart the computer and try the scanner again Check the cable connections See the scanner documentation for information on cable connections Ensure that the scanner cables are securely connected to the scanner and the computer Verify that the scanner is recognized by Microsoft Windows Windows XP 1 Click Start Control Panel Printers and Other Hardware Scanners and Cameras 2 If your scanner is listed Windows recognizes the scanner Windows Vista 1 Click Start Control Panel Hardware and Sound Scanners and Cameras 2 Ifthe scanner is listed Windows recognizes the scanner Reinstall the scanner driver See the scanner documentation for instructions Sound and Speaker Problems A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance No sound from speakers K NOTE The volume control in MP3 an
175. on on your Windows desktop and click Properties 11 Click the General tab 12 To verify that the memory is installed correctly check the amount of memory RAM listed Removing Memory Module s A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A CAUTI ON To avoid electrostatic discharge and damage to internal components ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover for your specific computer 3 Press out the securing clip at each end of the memory module connector 4 Grasp the module and pull up If the module is difficult to remove gently ease the module back and forth to remove it from the connector Back to Contents Page Dell OptiPlex 760 Service Manual Mini Tower Computer About Your Computer Removing and Replacing Parts Inside Your Computer Working on Your Computer System Setup Removing the Computer Cover Advanced Features Chassis Intrusion Switch Troubleshooting Cards Getting Help Drives Glossary Heat Sink and Processor system Fan I O Panel Power Supply Speakers Memory Battery Replacing the System Board Replac
176. onnector parallel connector or expansion slot and allows the processor to communicate with that device IrDA Infrared Data Association The organization that creates international standards for infrared communications IRQ interrupt request An electronic pathway assigned to a specific device so that the device can communicate with the processor Each device connection must be assigned an IRQ Although two devices can share the same IRQ assignment you cannot operate both devices simultaneously ISP Internet service provider A company that allows you to access its host server to connect directly to the Internet send and receive e mail and access websites The ISP typically provides you with a software package user name and access phone numbers for a fee K Kb kilobit A unit of data that equals 1024 bits A measurement of the capacity of memory integrated circuits KB kilobyte A unit of data that equals 1024 bytes but is often referred to as 1000 bytes key combination A command requiring you to press multiple keys at the same time kHz kilohertz A measurement of frequency that equals 1000 Hz L LAN local area network A computer network covering a small area A LAN usually is confined to a building or a few nearby buildings A LAN can be connected to another LAN over any distance through telephone lines and radio waves to form a wide area network WAN LCD liquid crystal disp
177. ontents Page Back to Contents Page Dell OptiPlex 760 Service Manual Module Bay Module Bay WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance You can install a Dell removable device such as a floppy drive optical drive or second hard drive in the module bay You can also install an airbay filler blank in the bay if you do not plan to install a drive Your Dell computer ships with either an optical drive or an airbay filler blank installed in the module bay The airbay is held in the module bay with a security screw only You can secure a optical drive in the module bay using two methods Locking switch accessed by removing the computer cover Security screw packaged separately See Securing a Device in the Module Bay for more information about securing a device in your computer CAUTION To prevent damage to devices place them in a safe dry place when they are not installed in the computer Avoid pressing down on them or placing heavy objects on top of them Removing and Installing a Device When Your Computer Is Turned Off 1 If the module bay contains a device that is locked with the locking switch a Remove the cover see Removing the Computer Cover b Lift the module locking switch to the unlocked position 1
178. or information on installing D module drives see the documentation that came with your optional device Connecting Drive Cables When you install a drive you connect two cables a DC power cable and a data interface cable to the back of the drive Data I nterface Connectors SATA Connector 1 data interface cable connector 2 data interface connector Power Cable Connectors power cable power input connector Connecting and Disconnecting Drive Cables When connecting and disconnecting a SATA data cable hold the cable by the black connector at each end When removing a cable with a pull tab grasp the colored pull tab and pull until the connector detaches wM F ead 7 F ory hr M A i s S a 5 E i P aeea Mig a e lt Hard Drive WARNI NG Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_compliance A WARNING To guard against electrical shock always unplug your computer from the power supply before removing the hard drive CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis CAUTION To avoid damage to the drive do not
179. ort Adapter 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently lift the release tab on the card retention latch from the inside to pivot the latch open Pivot the latch until it snaps into the open position 4 Disconnect the PS 2 serial port cable from the system board see System Board Components 5 Ease the PS 2 serial port adapter bracket out of its retention slot 6 If you are removing the adapter permanently install a filler bracket in the empty card slot opening NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintain the airflow that cools your computer 7 Before you close the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 8 Secure any remaining card s by closing the card retention latch and snapping it into place 9 Replace the computer cover see Replacing the Computer Cover Installing a PS 2 Serial Port Adapter in the Riser Card Cage 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the riser card cage a Check any cables connected to cards through the back panel openings
180. ostics Main Menu K NOTE Write down any error codes and problem descriptions exactly as they appear and follow the instructions on the screen 10 After all tests have completed close the test window to return to the Dell Diagnostics Main Menu 11 Close the Main Menu window to exit the Dell Diagnostics and restart the computer 12 Remove the Drivers and Utilities media from the optical drive Dell Diagnostics Main Menu After the Dell Diagnostics loads the following menu appears Test Memory Run the stand alone memory test Test System Run system diagnostics Exit the diagnostics Press lt Tab gt to select the test you want to run and then press lt Enter gt NOTE It is recommended that you select Test System to run a complete test on your computer Selecting Test Memory initiates the extended memory test which can take up to thirty minutes or more to complete When the test completes record the test results and then press any key to return to this menu After Test System is selected the following menu appears Function Express Test Performs a quick test of devices in the system This typically can take 10 to 20 minutes NOTE The Express Test requires no interaction on your part Run Express Test first to increase the possibility of tracing a problem quickly Extended Test Performs a thorough check of devices in the system This typically can take an hour or more NOTE The Extended Test periodically r
181. oubleshooting problems S SAS serial attached SCSI A faster serial version of the SCSI interface as opposed to the original SCSI parallel architecture SATA serial ATA A faster serial version of the ATA IDE interface ScanDisk A Microsoft utility that checks files folders and the hard disk s surface for errors ScanDisk often runs when you restart the computer after it has stopped responding SCSI small computer system interface A high speed interface used to connect devices to a computer such as hard drives CD drives printers and scanners The SCSI can connect many devices using a single controller Each device is accessed by an individual identification number on the SCSI controller bus SDRAM synchronous dynamic random access memory A type of DRAM that is synchronized with the optimal clock speed of the processor serial connector An I O port often used to connect devices such as a handheld digital device or digital camera to your computer Service Tag A bar code label on your computer that identifies your computer when you access Dell Support at support dell com or when you call Dell for customer service or technical support setup program A program that is used to install and configure hardware and software The setup exe or install exe program comes with most Windows software packages Setup program differs from system setup shortcut An icon that provides quick access to freq
182. out of the slot Replacing the Chassis Intrusion Switch Gently insert the switch from underneath the metal bracket into the square hole in the bracket and then slide the chassis intrusion switch into its slot until you feel it snap securely into place m m 2 Reconnect the cable to the system board 3 Replace the computer cover see Replacing the Computer Cover 4 If you are using a computer stand attach it to the computer Resetting the Chassis I ntrusion Detector 1 Turn on or restart your computer 2 When the DELL logo appears press lt F12 gt immediately If you wait too long and the operating system logo appears continue to wait until you see the Microsoft Windows desktop Then shut down your computer and try again 3 Select System Setup 4 Select Security Chassis Intrusion and then select the Clear Intrusion Warning option to reset the chassis intrusion detector Change the setting to On On Silent or Disabled E NOTE The default setting is On Silent 5 Save the settings and exit System Setup Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Drives Drives Your computer supports One SATA serial ATA hard drive One optional Dell D module optical drive second hard drive or floppy drive in the module bay see Module Bay for information on installing and removing devices in the module bay General Installation Guidelines K NOTE F
183. over from closing properly or cause damage to the equipment 8 Connect any cables that should be attached to the card 9 Before you close the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 10 Secure the card s by closing the card retention latch and snapping it into place 11 Replace the computer cover see Replacing the Computer Cover K NOTE See the documentation for the card for information about the card s cable connections 12 If you installed a sound card a Enter system setup select System Configuration Miscellaneous Devices and change the Audio setting to Disabled See Entering System Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headphone or line in connectors on the back panel of the computer A CAUTI ON If you disable the integrated network adapter you will not have AMT functionality 13 If you installed a network adapter card and want to turn off the integrated network adapter a Enter system setup select System Configuration Integrated NIC and change the setting to Disabled See Entering System Setup A CAUTI ON To connect a network cable first plug the cable into the network wall jack and then plug it into the computer b Connect the network cab
184. ows programs to operate with a wide variety of telephony devices including voice data fax and video text editor A program used to create and edit files that contain only text for example Windows Notepad uses a text editor Text editors do not usually provide word wrap or formatting functionality the option to underline change fonts and so on TPM trusted platform module A hardware based security feature that when combined with security software enhances network and computer security by enabling features such as file and e mail protection travel module A plastic device designed to fit inside the module bay of a portable computer to reduce the weight of the computer U UMA unified memory allocation System memory dynamically allocated to video UPS uninterruptible power supply A backup power source used when the electrical power fails or drops to an unacceptable voltage level A UPS keeps a computer running for a limited amount of time when there is no electrical power UPS systems typically provide surge suppression and may also provide voltage regulation Small UPS systems provide battery power for a few minutes to enable you to shut down your computer USB universal serial bus A hardware interface for a low speed device such as a USB compatible keyboard mouse joystick scanner set of speakers printer broadband devices DSL and cable modems imaging devices or storage devices Devices are plu
185. procedures in Working on Your Computer 2 Remove the cover of your computer see Removing the Computer Cover 3 Remove the fan shroud by lifting the fan shroud up and away from the computer 4 Facing the back of the computer remove the four screws that secure the system board sled to the computer chassis 5 Slide the system board sled towards the back of the computer and lift it up and away from the computer chassis 6 Disconnect the fan cables from the system board 7 To remove the front fan press the fan release tab and slide the fan away from the memory modules back fan release tab back fan power cable front fan release tab fa front fan power cable 8 To remove the back fan press the fan release tab and slide the fan away from the drives Installing the System Fans 1 To replace the fan follow the removal procedures in the reverse order 2 Replace the computer cover see Replacing the Computer Cover 3 Turn on the computer Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Power Button Power Button WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance Removing the Power Button 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Co
186. puter If the power light is blinking amber The computer is receiving electrical power but an internal power problem may exist Ensure that the voltage selection switch is set to match the AC power at your location if applicable Ensure that all components and cables are properly installed and securely connected to the system board see the System Board Components section for your computer If the power light is steady amber A device may be malfunctioning or incorrectly installed Ensure that the processor power cable is securely connected to the system board power connector POWER2 see System Board Components section of the Service Manual for your computer Remove and then reinstall all memory modules see Memory Remove and then reinstall any expansion cards including graphics cards see the Removing PCI and PCI Express Cards section for your computer Eliminate interference Some possible causes of interference are Power keyboard and mouse extension cables Too many devices connected to the same power strip Multiple power strips connected to the same electrical outlet Printer Problems WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance K NOTE If you need technical assistance for your printer co
187. puter The brackets also keep dust and dirt out of your computer and maintains the airflow that cools your computer 8 Before you close the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 9 Secure the card s by closing the card retention latch and snapping it into place 10 Replace the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Heat Sink and Processor Heat Sink and Processor A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis Removing the Processor 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover A WARNING Despite having a plastic shield the heat sink assembly may be very hot during normal operation Be sure that it has had sufficient time to cool before you touch
188. r 6 Turn on power to the computer Installing a Speaker WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis 1 Follow the procedures in Working on Your Computer 2 Remove the cover of your computer see Removing the Computer Cover 3 Insert the speaker into the chassis of the computer speaker cable 4 Connect the speaker cable to the system board 5 Replace the computer cover 6 Turn on power to the computer Back to Contents Page Back to Contents Page Desktop Dell OptiPlex 760 Service Manual Removing the Computer Cover Inside View of Your Computer System Board Components Removing the Computer Cover WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer
189. r A chip that controls the transfer of data between the processor and memory or between the processor and devices CRIMM continuity rambus in line memory module A special module that has no memory chips and is used to fill unused RIMM slots cursor The marker on a display or screen that shows where the next keyboard touch pad or mouse action will occur It often is a blinking solid line an underline character or a small arrow D DCM Dell Client Manager Dell s utility for remote management DDR SDRAM double data rate SDRAM A type of SDRAM that doubles the data burst cycle improving system performance DDR2 SDRAM double data rate 2 SDRAM A type of DDR SDRAM that uses a 4 bit prefetch and other architectural changes to boost memory speed to over 400 MHz device Hardware such as a disk drive printer or keyboard that is installed in or connected to your computer device driver See driver DIMM dual in line memory module A circuit board with memory chips that connects to a memory module on the system board DIN connector A round six pin connector that conforms to DIN Deutsche Industrie Norm standards it is typically used to connect PS 2 keyboard or mouse cable connectors disk striping A technique for spreading data over multiple disk drives Disk striping can speed up operations that retrieve data from disk storage Computers that use disk striping generally allow the user to select
190. r Cover 3 Gently lift the release tab on the card retention latch from the inside to pivot the latch open Pivot the latch until it snaps into the open position 4 Remove the filler bracket if applicable NOTE See the documentation that came with the adapter for information on configuring the adapter making internal connections or customizing it for your computer 5 Align the PS 2 serial port adapter bracket in the retention slot and press down firmly Ensure that the adapter is fully seated in the slot 6 Before you close the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 7 Secure the card s by closing the card retention latch and snapping it into place CAUTION Do not route card cables over the cards Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment PS 2 serial port adapter bracket 4 serial port adapter connector serial port adapter system board connector SERIAL2 P 8 Connect the adapter cable to the PS 2 serial port adapter connector SERIAL2 on the system board see System Board Components K NOTE See the documentation for the PS 2 serial port adapter for information about the cable connections 9 Replace the computer cover see Replacing the Computer Cover Removing a PS 2 Serial P
191. r and data cables to the floppy drive 5 Align the shoulder screws with the screw guides and slide the drive into the bay until it clicks into place 1 power cable 2 slot verification number 6 Replace the optical drive see Optical Drive 7 Check all cable connections and fold cables out of the way to provide airflow for the fan and cooling vents 8 Replace the computer cover see Replacing the Computer Cover 9 Enter system setup and set the Diskette Drive option to enable your new floppy drive see System Setup 10 Verify that your computer works correctly by running the Dell Diagnostics see Dell Diagnostics Media Card Reader WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover NOTE If you will be operating your computer without an optical drive or a 3 5 inch drive installed the appropriate drive bay insert must be installed in place of the drive Contact Dell if you need a drive bay insert Removing a Media Card Reader 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover NOTE Since the following steps do not require the compl
192. ration that uses 3 5 inch removable disks called Zip disks Zip disks are slightly larger than regular floppy disks about twice as thick and hold up to 100 MB of data Back to Contents Page Back to Contents Page Memory Dell OptiPlex 760 Service Manual Installing Memory Module s Removing Memory Module s You can increase your computer memory by installing memory modules on the system board Your computer supports DDR2 memory For additional information on the type of memory supported by your computer see the appropriate specifications for your system in this book DDR2 Memory Overview When installed in pairs DDR2 memory modules should be of matched memory size and speed If the DDR2 memory modules are not installed in matched pairs the computer will continue to operate but with a slight reduction in performance See the label on the upper right or upper left corner of the module to determine the module s capacity E NOTE Always install DDR2 memory modules in the order indicated on the system board The recommended memory configurations are o A pair of matched memory modules installed in DIMM connectors 1 and 2 or o A pair of matched memory modules installed in DIMM connectors 1 and 2 and another matched pair installed in DIMM connectors 3 and 4 CAUTION Do not install ECC memory modules If you install mixed pairs of PC2 5300 DDR2 667 MHz and PC2 6400 DDR2 800 MHz memory the modules function a
193. re working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A CAUTI ON To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis I nstalling a PS 2 Serial Port Adapter 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently push the release tab on the card retention latch from the inside to pivot the latch open The latch will remain in the open position 1 card retention latch 2 alignment guide 4 Remove the filler bracket if applicable NOTE See the documentation that came with the PS 2 serial port adapter for information on configuring the adapter making internal connections or customizing it for your computer 5 Align the PS 2 serial port adapter bracket in the retention slot and press down firmly Ensure that the adapter is fully seated in the slot card fully seated card not fully seated bracket within slot a bracket caught outside of slot 6 Before you close the card retention mechanism ensure that The tops of all adapters and filler brackets are flush with the alignment bar The notch i
194. release tab on the card retention latch from the inside and pivot the latch open 4 Remove the filler bracket if applicable K NOTE See the documentation that came with the adapter for information on configuring the adapter making internal connections or customizing it for your computer 5 Align the PS 2 serial port adapter bracket in the retention slot and press down firmly Ensure that the adapter is fully seated in the slot 6 Before you close the card retention mechanism ensure that The tops of all cards and filler brackets are flush with the alignment bar The notch in the top of the card or filler bracket fits around the alignment guide 7 Secure the card s by closing the card retention latch and snapping it into place CAUTION Do not route card cables over the cards Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment adapter retention latch serial port adapter bracket serial port adapter connector serial port adapter system board connector PS2 SERIAL2 8 Connect the adapter cable to the PS 2 serial port adapter connector PS2 SERIAL2 on the system board see System Board Components K NOTE See the documentation for the PS 2 serial port adapter for information about the cable connections 9 Replace the computer cover see Replacing the Computer Cover Removing a PS 2 Serial Port Adapter 1 Follow the procedures in Working on
195. rement that equals 1 cycle per second Computers and electronic devices are often measured in kilohertz kHz megahertz MHz gigahertz GHz or terahertz THz iAMT Intel Active Management Technology Intel AMT Using built in platform capabilities and popular third party management and security applications Intel AMT allows IT to better detect repair and protect their networked computing assets IC integrated circuit A semiconductor wafer or chip on which thousands or millions of tiny electronic components are fabricated for use in computer audio and video equipment IDE integrated device electronics An interface for mass storage devices in which the controller is integrated into the hard drive or CD drive IEEE 1394 Institute of Electrical and Electronics Engineers Inc A high performance serial bus used to connect IEEE 1394 compatible devices such as digital cameras and DVD players to the computer infrared sensor A port that allows you to transfer data between the computer and infrared compatible devices without using a cable connection integrated Usually refers to components that are physically located on the computer s system board Also referred to as built in I O input output An operation or device that enters and extracts data from your computer Keyboards and printers are I O devices I O address An address in RAM that is associated with a specific device such as a serial c
196. rocessor do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Unpack the new processor being careful not to touch the underside of the processor A CAUTI ON You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer 4 Ifthe release lever on the socket is not fully extended move it to that position 5 Orient the front and rear alignment notches on the processor with the front and rear alignment notches on the socket 6 Align the pin 1 corners of the processor and socket processor 4 E center cover atch A release ever front aignment notch 8 socket and processor pin indicator rear alignmentnateh A CAUTI ON To avoid damage ensure that the processor aligns properly with the socket and do not use excessive force when you install the processor 7 Set the processor lightly in the socket and ensure that the processor is positioned correctly 8 When the processor is fully seated in the socket close the processor cover Ensure that the tab on the processor cover is positioned underneath the center cover latch on the socket 9 Pivot the socket release lever back toward the socket and snap it into place to secure the processor 10 Clean the thermal grease from
197. roperly or cause damage to the equipment 11 Connect the adapter cable to the PS 2 serial port adapter connector PS2 SERIAL2 on the system board see System Board Components 12 Replace the riser card cage a Align the tabs in the side of the riser card cage with the slots on the side of the computer and slide the riser card cage down into place b Ensure that the riser card connectors are fully seated in the connectors on the system board c Rotate the riser card cage handle to the down position 13 Connect any disconnected cables 14 Replace the computer cover see Replacing the Computer Cover 15 Install any drivers required for the PS 2 serial port adapter Removing a PS 2 Serial Port Adapter From the Riser Card Cage 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the riser card cage a Check any cables connected to cards through the back panel openings Disconnect any cables that will not reach the riser card cage once they are removed from the computer b Rotate the riser card cage handle up and gently pull on the handle and lift the riser card cage up and away from the computer riser card cage 2 handle 1 3 frisercaras 2 o d d 4 Gently lift the release tab on the card retention latch from the inside to pivot the latch open Pivot the latch until it snaps into the open position 5 Disconnect the PS 2 serial port cable fr
198. s 1 power supply 2 mounting screws 3 7 Slide the power supply toward the front of the computer approximately 1 inch 8 Lift the power supply up and out of the computer 9 Slide the replacement power supply into place 10 Replace the screws that secure the power supply to the back of the computer chassis 11 Reconnect the DC power cables to the system board and drives see System Board Components for connector locations 12 Replace the floppy drive or media card reader see Installing a Floppy Drive 13 Replace the optical drive see Installing an Optical Drive 14 Replace the computer cover see Replacing the Computer Cover 15 Connect the AC power cable to the power supply AC power connector A CAUTI ON To connect a network cable plug the cable into the network wall jack and then plug it into the computer 16 Connect your computer and devices to electrical outlets and turn them on DC Power Connectors DC Power Connector P1 13 14 15 16 17 18 19 20 21 22 2 24 C C Cal Cafe alla al Cal a E5 E E E5 E e 5 E Le Cal tal fl Eis i w UT Se oe mi2 Pin Number Signal Name 18 AWG Wire 2 FAN 3 N C N C 4 7 10 svoe Reg r a 12 svoe Red 15 16 7 POK 19 12 VDC Yellow DC Power Connector P2 Signal Name 18 AWG Wire ND DC Power Connectors P3 94321 Pin Number Signal Name 18 AWG Wire 654321 Pin Number Back to Contents Page Bac
199. s A specific location where data is temporarily stored in RAM memory mapping The process by which the computer assigns memory addresses to physical locations at start up Devices and software can then identify information that the processor can access memory module A small circuit board containing memory chips which connects to the system board MHz megahertz A measure of frequency that equals 1 million cycles per second The speeds for computer processors buses and interfaces are often measured in MHz Mini PCI A standard for integrated peripheral devices with an emphasis on communications such as modems and NICs A Mini PCI card is a small external card that is functionally equivalent to a standard PCI expansion card Mini Card A small card designed for integrated peripherals such as communication NICs The Mini Card is functionally equivalent to a standard PCI expansion card mirroring Duplication of data onto another computer at another location Mirroring is performed for backup purposes or to be in close proximity to the user modem A device that allows your computer to communicate with other computers over analog telephone lines Three types of modems include external PC Card and internal You typically use your modem to connect to the Internet and exchange e mail module bay See media bay MP megapixel A measure of image resolution used for digital cameras ms millisecond
200. s If the problem persists contact Dell see Contacting Dell Another failure has occurred Ensure that all hard drive and optical drive cables are properly connected to the system board see the System Board Components section for your computer If there is an error message on the screen identifying a problem with a device such as the floppy drive or hard drive check the device to make sure it is functioning properly If the operating system is attempting to boot from a device such as the floppy drive or optical drive check system setup to ensure the boot sequence is correct for the devices installed on your computer If the problem persists contact Dell see Contacting Dell 091901010 The computer is in standby mode Press a key on the keyboard move the mouse or press the power button to resume normal operation Blinking Green Power Supply Diagnostic Light The power supply diagnostic light located on the back of the computer near the power connector The light remains solid or off to indicate different states No light Indicates no power available for the power supply or the power supply is not working Green light Indicates power availability for the power supply Beep Codes Your computer may emit a series of beeps during start up if the monitor cannot display errors or problems For example one possible beep code may consist of three short repeated beeps indicating that the computer has encounter
201. sconnect any cables connected to the card 5 If you are removing the card permanently install a filler bracket in the empty card slot opening NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintains the airflow that cools your computer FaN CAUTI ON To connect a network cable first plug the cable into the network wall jack and then plug it into the computer 6 Replace the computer cover see Replacing the Computer Cover reconnect the computer and devices to electrical outlets and then turn them on 7 Uninstall the card s driver See the documentation that came with the card for instructions 8 If you removed a sound card a Enter system setup select System Configuration Miscellaneous Devices and change the Audio setting to Enabled see Entering System Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headphone or line in connectors on the back panel of the computer 9 If you removed a network adapter card and want to turn on the integrated network adapter a Enter system setup select System Configuration Integrated NIC and change the setting to Enabled see Entering System Setup b Connect the network cable to the integrated the back panel of the computer PS 2 Serial Port Adapter A WARNING Befo
202. sor K NOTE You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer 4 Ifthe release lever on the socket is not fully extended move it to that position 5 Orient the front and rear alignment notches on the processor with the front and rear alignment notches on the socket 6 Align the pin 1 corners of the processor and socket 1 processor cover 2 tab 3 processor 4 processor socket 5 center cover latch 6 release lever z front alignment notch 8 socket and processor pin 1 indicator 9 rear alignment notch CAUTI ON To avoid damage ensure that the processor aligns properly with the socket and do not use excessive force when you install the processor 7 Set the processor lightly in the socket and ensure that the processor is positioned correctly 8 When the processor is fully seated in the socket close the processor cover Ensure that the tab on the processor cover is positioned underneath the center cover latch on the socket 9 Pivot the socket release lever back toward the socket and snap it into place to secure the processor 10 Clean the thermal grease from the bottom of the heat sink CAUTION Ensure that you apply new thermal grease New thermal grease is critical for ensuring adequate thermal bonding which is a requirement for optimal processor operation 11 Apply the new thermal grease to the top of the proc
203. ssembly see Removing the Processor 4 Disconnect the power and data cables from the hard drive 5 Disconnect the system fans power cable from the system board 1 retention tab 2 system fan power cable 6 Pull the retention tab at the base of the fan assembly 7 Press the retention tab close to the hard drive assembly 8 Slide the system fan towards the back of the computer to remove the system fan assembly from the computer Installing the System Fan 1 To install the system fan follow the removal procedure in the reverse order 2 Close the computer cover see Replacing the Computer Cover Back to Contents Page Back to Contents Page Mini Tower Dell OptiPlex 760 Service Manual Removing the Computer Cover inside Your Computer System Board Components Removing the Computer Cover WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover 1 Follow the procedures in Working on Your Computer 2 If you have installed a padlock through the padlock ring on the back panel remove the padlock 3 Locate the cover release latch shown in the illustration Then pull the cover release latch back as
204. t Integrated NIC and change the setting to Disabled see Entering System Setup b Connect the network cable to the network adapter card s connectors Do not connect the network cable to the integrated network connector on the back panel of the computer 14 Install any drivers required for the card as described in the card documentation Removing a PCI Card 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently rotate lift the release tab on the card retention latch system board connector 4 card insert S reteaseta 4 If necessary disconnect any cables connected to the card 5 If you are replacing a PCI Express x16 card remove the installed card by gently pulling the release lever away from the card until you release the securing tab from the dent in the card ae saa ean I a es ee ot 6 Grasp the card by its top corners and ease it out of its connector 7 If you are removing the card permanently install a filler bracket in the empty card slot opening NOTE Installing filler brackets over empty card slot openings is necessary to maintain FCC certification of the computer The brackets keep dust and dirt out of your computer and maintain the airflow that cools your computer 8 Rotate the release tab downward to snap the card retention latch into place Pas CAUTI ON To connect a network cable first plug the cable into the network wall ja
205. t setting is On Silent c Save your BIOS settings and exit system setup On Silent default setting If the computer cover is opened the setting changes to Detected No alert message appears during the boot sequence at the next computer start up Off No intrusion monitoring occurs and no messages appear Padlock Ring and Security Cable Slot Use one of the following methods to secure your computer Use a padlock alone or a padlock and looped security cable with the padlock ring A padlock alone prevents the computer from being opened A security cable looped around a stationary object is used in conjunction with a padlock to prevent unauthorized movement of the computer Attach a commercially available antitheft device to the security cable slot on the top of the computer K NOTE On the ultra small form factor computer the security cable slot is located on the back of the computer see the Setup and Quick Reference Guide that ships with your computer for more information K NOTE Before you purchase an antitheft device make sure that it works with the security cable slot on your computer Antitheft devices usually include a segment of metal stranded cable with an attached locking device and key The documentation that comes with the device contains instructions for installing it Trusted Platform Module TPM K NOTE Computers shipping into China are not equipped with TPM K NOTE The TPM feature suppor
206. t the speed of the slowest module installed Be sure to install a single memory module in DIMM connector 1 the connector closest to the processor before you install modules in any other connector K NOTE The Ultra Small Form Factor supports only DIMM connectors 1 and 2 matched pair of modules in DIMM connectors 1 and 2 white securing g matched pair of memory modules in DIMM connectors 3 and 4 black securing clips clips A CAUTI ON If you remove your original memory modules from the computer during a memory upgrade keep them separate from any new modules that you may have even if you purchased the new modules from Dell If possible do not pair an original memory module with a new memory module Otherwise your computer may not start properly You should install your original memory modules in pairs either in DI MM connectors 1 and 2 or DI MM connectors 3 and 4 K NOTE Memory purchased from Dell is covered under your computer warranty Addressing Memory Configurations If you are using a 32 bit operating system such as Microsoft Windows Vista your computer will support a maximum of 4 GB of memory If you are using a 64 bit operating system your computer will support a maximum of 8 GB 2 GB DIMMs in each of the four slots of memory I nstalling Memory Module s A WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices informatio
207. t to Disable AT PS 2 default EPP ECP No DMA ECP DMA 1 ECP DMA 3 Parallel Port Address Sets the base I O address of the integrated parallel port Serial Port 1 Identifies and defines the serial port settings You can set the serial port to Disable Auto default COM1 COM3 NOTE Auto the default setting automatically configures a connector to a particular designation COM1 or COM3 Miscellaneous Devices Enables or disables the following onboard devices Front USB Rear Dual USB Rear Quad USB PCI slots Audio Primary Video Specifies which video controller is primary when two video controllers are present on the computer Auto default Onboard PEG Performance Multi Core Support Specifies whether one or all the cores of the processor will be enabled NOTE The performance of some applications improve with additional cores Intel SpeedStep Enables or disables the Intel SpeedStep mode This option is disabled by default Limit CPU Enables or disables the CPUID limit This option is disabled by default HDD Acoustic Mode Sets the performance speed and noise level of your hard drive to Bypass default Quiet Suggested Performance Virtulization Support VT for Direct Enables or disables the Virtual Machine Monitor VMM from utilizing the additional hardware capabilities provided by Intel Virtulization I O technology for direct I
208. t www dell com regulatory_compliance CAUTION To prevent static damage to components inside your computer discharge static electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface on the computer chassis Removing the Processor 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover WARNING Despite having a plastic shield the heat sink assembly may be very hot during normal operation Be sure that it has had sufficient time to cool before you touch it 3 Remove the optical drive see Optical Drive 4 Loosen the captive screws on each side of the heat sink assembly 5 Disconnect the floppy drive data cable from the system board and release it from the securing tab on the heatsink see Floppy Drive 6 Rotate the heat sink assembly upward and remove the assembly from the computer Lay the heat sink down on its top with the thermal grease facing upward lt Mi 1 heat sink assembly 2 captive screws in housing 2 Fan CAUTI ON Unless a new heat sink is required for the new processor reuse the original heat sink assembly when you replace the processor 7 Open the processor cover by sliding the release lever from under the center cover latch on the socket Then pull the lever back to release the processor center cover latch processor cover processor 4 socket re
209. tab click the Enable hibernate support check box on the Hibernate tab For more information on power management options 1 Click Start Help and Support gt Performance and maintenance 2 In the Performance and maintenance window click Conserving power on your computer Options in Windows Vista The Microsoft Vista power management features can reduce the amount of electricity your computer uses when it is on and you are not using it You can reduce power to just the monitor or the hard drive or you can use sleep mode or hibernate mode to reduce power to the entire computer When the computer exits from a power conservation mode it returns to the operating state it was in prior to entering the mode Sleep Mode Sleep mode conserves power by turning off the display and the hard drive after a predetermined period of inactivity a time out When the computer exits sleep mode it returns to the same operating state it was in before entering sleep mode To enter sleep mode in Windows Vista click Start Click the arrow in the lower right corner of the Start menu and then click Sleep To exit sleep mode press a key on the keyboard or move the mouse Hibernate Mode Hibernate mode conserves power by copying system data to a reserved area on the hard drive and then completely turning off the computer When the computer exits hibernate mode it returns to the same operating state it was in before entering hibernate mode To manually
210. tential damage to hardware or loss of data if instructions are not followed A WARNING A WARNING indicates a potential for property damage personal injury or death If you purchased a Dell n Series computer any references in this document to Microsoft Windows operating systems are not applicable Information in this document is subject to change without notice 2008 2009 Dell Inc All rights reserved Reproduction in any manner whatsoever without the written permission of Dell Inc is strictly forbidden Trademarks used in this text Dell the DELL logo OptiPlex TravelLite OpenManage and StrikeZone are trademarks of Dell Inc Intel and SpeedStep are registered trademarks of Intel Corporation in the U S and other countries Microsoft Windows Windows Vista and the Windows Start button are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Computrace is a registered trademark of Absolute Software Corp Citrix is a registered trademarks of Citrix Systems Inc and or one or more of its subsidiaries and may be registered in the United States Patent and Trademark Office and in other countries Bluetooth is a trademark owned by Bluetooth SIG Inc and is used by Dell Inc under license ENERGY STAR is a registered trademark of the U S Environmental Protection Agency As an ENERGY STAR partner Dell Inc has determined that this product meets the ENERGY STAR guidelines for en
211. that Password Status is set to Not Set 3 Type your new system password You can use up to 32 characters To erase a character when entering your password press lt Backspace gt The password is case sensitive Certain key combinations are not valid If you enter one of these invalid combinations the speaker emits a beep As you press each character key or the spacebar for a blank space a placeholder appears 4 Type your new password a second time to confirm and press OK button The password setting changes to Set Typing Your System Password When you start or restart your computer the following prompt appears on the screen If Password Status is set to Locked Type the password and press lt Enter gt If you have assigned an administrator password the computer accepts your administrator password as an alternate system password If you type a wrong or incomplete system password the following message appears on the screen xx Incorrect password If you again type an incorrect or incomplete system password the same message appears on the screen The third and subsequent times you type an incorrect or incomplete system password the computer displays the following message xx Incorrect password Number of unsuccessful password attempts 3 System halted Must power down Even after your computer is turned off and on the previous message is displayed each time you type an incorrect or incomplete system password N
212. the computer cover Removing a Floppy Drive 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the optical drive and carefully set it aside see Optical Drive A CAUTI ON Do not pull the drive out of the computer by the drive cables Doing so may cause damage to cables and the cable connectors 4 Pull the cable release tab to disconnect the data cable from the system board 5 Pull the drive release latch and slide the floppy drive towards the back of the computer Then lift up to remove the drive 6 Gently lift the data cable from the floppy data cable edge connector cable release tab data cable edge connector 7 Replace the computer cover see Replacing the Computer Cover Installing a Floppy Drive floppy drive screws 3 bracket slots 3 1 If you are Installing a new floppy drive remove the drive panel insert Replacing a drive remove the floppy drive see Removing a Floppy Drive 2 Align the screws on the drive with the bracket slots in the computer and gently position the drive until it clicks into place 3 Insert the data cable into the cable release tab on the floppy drive and press down on the tab until it clicks to lock it in place 4 Insert the data cable into the connector on the system board cable release tab floppy drive data cable edge connector 5 Replace the optical drive see Optical Drive
213. the drive until it clicks into place 9 Replace the computer cover see Replacing the Computer Cover 10 11 12 13 14 If the drive you just installed is the primary drive insert a bootable media into your boot drive Turn on the computer Enter system setup and update the SATA port option under Drives option list see Entering System Setup Exit system setup and reboot the computer Partition and logically format your drive K NOTE For instructions see the documentation that came with your operating system 15 16 Test the hard drive by running the Dell Diagnostics see Dell Diagnostics Install your operating system on the hard drive K NOTE For instructions see the documentation that came with your operating system Replacing a Hard Drive Fan Follow the procedures in Working on Your Computer Remove the computer cover see Removing the Computer Cover Remove the hard drive see Removing a Hard Drive Turn the hard drive upside down so that the hard drive fan is visible at the bottom of the drive bracket To remove the hard drive fan a Lift the release tab on the back panel of the fan b Rotate the fan in the direction opposite to the direction indicated by the arrow on the back panel of the fan c Lift to remove the fan and its back panel from the hard drive bracket arrow on the back panel of the fan Sipuwerete jalnadcnvebices 6 T 8 To replace the h
214. the remote management of desktop and mobile computing resources in a standard manner that is independent of operating state Your computer supports early versions of the DASH initiative including the following management profiles Base Desktop Mobile Power State Management Boot Control CPU System Memory Fan Power Supply Sensor Physical Asset l Software Inventory K NOTE If you have chosen to use None no manageability or ASF you will be unable to take advantage of DASH features and profiles Active Management Technology Intel Active Management Technology iAMT provides secure systems management capabilities that reduce IT costs and allow better discovery healing and protection of networked computing assets With iAMT computers can be managed regardless of whether the computer is on off or the operating system is hung K NOTE iAMT can be configured using Dell Client Manager DCM 2 1 1 or later For complete information on how to configure iAMT see the Dell Client Manager 2 1 1 or later documentation on www dell com openmanage For more information about Dell s iAMT implementation see the Client Systems Management Administrator s Guide available on the Dell Support website at support dell com Key benefits of iAMT are Reduced desk side visits Automation of more management functionality through enablement of systems management console software Improved security iMAMT Features Basic Functionality
215. thin slot las bracket caught outside of slot NOTE If you are installing a PCI Express x16 card ensure that the securing tab on the connector s release lever fits into the notch on the front end of the card 9 Gently rotate the release tab downward to move the card retention latch into place to secure the cards FaN CAUTI ON Do not route card cables over or behind the cards Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment 10 Connect any cables that should be attached to the card 11 Replace the computer cover see Replacing the Computer Cover reconnect the computer and devices to electrical outlets and then turn them on A CAUTI ON To connect a network cable first plug the cable into the network wall jack and then plug it into the computer 12 If you installed a sound card a Enter system setup select System Configuration Miscellaneous Devices and change the Audio setting to Disabled See Entering System Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headphone or line in connectors on the back panel of the computer E CAUTI ON If you disable the integrated network adapter you will not have AMT functionality 13 If you installed a network adapter card and want to turn off the integrated network adapter a Enter system setup select System Configuration g
216. ts encryption only if the operating system supports TPM For more information see the TPM software documentation and the help files that came with the software TPM is a hardware based security feature that can be used to create and manage computer generated encryption keys When combined with security software the TPM enhances existing network and computer security by enabling features such as file protection capabilities and protected e mail The TPM feature is enabled through a system setup option CAUTI ON To secure your TPM data and encryption keys follow the backup procedures documented in the Archive and Restore section of the EMBASSY Security Center help file In the event of these backups being incomplete lost or damaged Dell will be unable to assist in the recovery of encrypted data Enabling the TPM Feature 1 Enable the TPM software a Enter System Setup see Entering System Setup b Select Security gt TPM Security and press lt Enter gt c Under TPM Security select On d Save and exit the system setup program 2 Activate the TPM setup program a Enter System Setup see Entering System Setup b Select Security TPM Activation and press lt Enter gt c Under TPM Activation select Activate and press lt Enter gt K NOTE You only need to activate TPM once d Once the process is complete the computer either restarts automatically or prompts you to restart your computer Security Management Softwar
217. ttach it to the computer Resetting the Chassis Intrusion Detector 1 Turn on or restart your computer 2 When the DELL logo appears press lt F12 gt immediately If you wait too long and the operating system logo appears continue to wait until you see the Microsoft Windows desktop Then shut down your computer and try again 3 Select System Setup 4 Select Security gt Chassis Intrusion and then select the Clear Intrusion Warning option to reset the chassis intrusion detector Change the setting to On On Silent or Disabled E NOTE The default setting is On Silent 5 Save your BIOS settings and exit system setup Back to Contents Page Back to Contents Page Dell OptiPlex 760 Service Manual Drives Drives Your computer supports One SATA serial ATA hard drive One slimline floppy drive or media card reader One SATA slimline optical drive hard drive General Installation Guidelines SATA connectors on the system board are labeled SATAO and SATAI1 Hard drives must be connected to SATAO while any other SATA devices like an optical drive must be connected to SATA1 For example if you have a SATA hard drive and a SATA optical drive connect the hard drive to the SATAO and connect the SATA optical drive to the SATA1 connector See System Board Components for the location of the SATA connectors on the system board Connecting Drive Cables When you install a drive you connect
218. ue the desired action 4 Follow the instructions on the screen Error Messages WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage on www dell com at www dell com regulatory_ compliance If the error message is not listed see the documentation for the operating system or the program that was running when the message appeared A filename cannot contain any of the following characters lt gt Do not use these characters in filenames A required DLL file was not found The program that you are trying to open is missing an essential file To remove and then reinstall the program Windows XP 1 Click Start gt Control Panel Add or Remove Programs Programs and Features 2 Select the program you want to remove 3 Click Uninstall 4 See the program documentation for installation instructions Windows Vista Click Start Control Panel Programs gt Programs and Features Select the program you want to remove Click Uninstall See the program documentation for installation instructions eS drive letter is not accessible The device is not ready The drive cannot read the disk Insert a disk into the drive and try again Insert bootable media Insert a bootable floppy disk CD or DVD Non system disk error Remove the floppy disk from the f
219. uently used programs files folders and drives When you place a shortcut on your Windows desktop and double click the icon you can open its corresponding folder or file without having to find it first Shortcut icons do not change the location of files If you delete a shortcut the original file is not affected Also you can rename a shortcut icon SIM Subscriber Identity Module A SIM card contains a microchip that encrypts voice and data transmissions SIM cards can be used in phones or portable computers smart card A card that is embedded with a processor and a memory chip Smart cards can be used to authenticate a user on computers equipped for smart cards S PDIF Sony Philips Digital Interface An audio transfer file format that allows the transfer of audio from one file to another without converting it to and from an analog format which could degrade the quality of the file standby mode A power management mode that shuts down all unnecessary computer operations to save energy StrikeZone Reinforced area of the platform base that protects the hard drive by acting as a dampening device when a computer experiences resonating shock or is dropped whether the computer is on or off surge protectors Prevent voltage spikes such as those that may occur during an electrical storm from entering the computer through the electrical outlet Surge protectors do not protect against lightning strikes or against brow
220. us Devices and change the Audio setting to Disabled see Entering System Setup b Connect external audio devices to the sound card s connectors Do not connect external audio devices to the microphone speaker headphone or line in connectors on the back panel of the computer A CAUTI ON If you disable the integrated network adapter you will not have Active Management Technology AMT functionality 15 If you installed a network adapter card and want to turn off the integrated network adapter a Enter system setup select System Configuration Integrated NIC and change the setting to Disabled see Entering System Setup amp CAUTION To connect a network cable first plug the cable into the network wall jack and then plug it into the computer b Connect the network cable to the network adapter card s connectors Do not connect the network cable to the integrated network connector on the back panel of the computer 16 Install any drivers required for the card as described in the card documentation Removing a PCI or PCI Express Card 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Gently push the release tab on the card retention latch from the inside to pivot the latch open The latch will remain in the open position 1 card retention latch 2 alignment guide card 4 card edge connector card connector 6 release tab 4 If necessary di
221. uter Cover 10 Enter system setup see System Setup and update the SATA port option under the Drives option list 11 Exit system setup and reboot the computer 12 Partition and logically format your drive See the documentation for your operating system for instructions 13 Test the hard drive by running the Dell Diagnostics see Dell Diagnostics 14 If the drive you just installed is the primary drive install your operating system on the hard drive Floppy Drive WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To guard against electrical shock always unplug your computer from the electrical outlet before removing the computer cover Removing the Floppy Drive 1 Boot your computer and enter system setup see Entering System Setup Use the Diskette Drive option to disable the floppy drive 2 Follow the procedures in Working on Your Computer 3 Remove the computer cover see Removing the Computer Cover 4 Remove the drive panel by sliding the drive release latch downward to open the panel and then remove it from the hinges 5 Disconnect the power and data cables from the back of the floppy drive and the system board floppy drive drive release latch 6 Grasp the sliding plate lever and slide it towards the bottom of t
222. x 760 Service Manual Chassis Intrusion Switch Chassis Intrusion Switch WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance Removing the Chassis Intrusion Switch 1 Follow the procedures in Working on Your Computer 2 Remove the computer cover see Removing the Computer Cover 3 Remove the hard drive see Removing a Hard Drive 4 Disconnect the chassis intrusion switch cable from the system board by using two fingers to squeeze the release mechanism on one side of the connector as you pull to disconnect the cable connector 5 Slide the chassis intrusion switch out of its slot in the metal bracket and then push it down through the square hole in the bracket to remove the switch and its attached cable from the computer K NOTE You may feel a slight resistance as you slide the switch out of the slot Replacing the Chassis Intrusion Switch 1 Gently insert the switch from underneath the metal bracket into the square hole in the bracket and then slide the chassis intrusion switch into its slot until it snaps securely into place 2 Reconnect the cable to the system board 3 Replace the hard drive see Installing a Hard Drive 4 Replace the computer cover see Replacing the Computer Cover 5 If you are using a computer stand a
223. you lift the cover 4 Grip the sides of the computer cover and pivot the cover up using the hinge tabs as leverage points 5 Remove the cover from the hinge tabs and set it aside on a soft nonabrasive surface A WARNING Graphics card heat sinks can become very hot during normal operation Ensure that the graphics card heat sink has had sufficient time to cool before you touch it en a ad li Ke FA ian N nN Sie security cable slot cover release latch padlock ring PoP Inside Your Computer WARNING Before working inside your computer read the safety information that shipped with your computer For additional safety best practices information see the Regulatory Compliance Homepage at www dell com regulatory_ compliance A WARNING To avoid electrical shock always unplug your computer from the electrical outlet before removing the computer cover A CAUTI ON Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board optical drive disk drive power supply ral optional chassis intrusion switch system board e _ heat sink assembly reve TOCOCOCOCOCS internal speaker INT_SPKR processor connector CPU processor power connector Lae module connectors DIMM_1 DIMM_2 12VPOWER DIMM_3 and DIMM_4 password jumper PSWD password jumper PSWD 6 SATA drive connectors SATAO and SATA1 front panel connector power connector PO
224. your favorite picture and make it wallpaper WLAN wireless local area network A series of interconnected computers that communicate with each other over the air waves using access points or wireless routers to provide Internet access write protected Files or media that cannot be changed Use write protection when you want to protect data from being changed or destroyed To write protect a 3 5 inch floppy disk slide its write protect tab to the open position WWAN wireless wide area network A wireless high speed data network using cellular technology and covering a much larger geographic area than WLAN WXGA wide aspect extended graphics array A video standard for video cards and controllers that supports resolutions up to 1280 x 800 X XGA extended graphics array A video standard for video cards and controllers that supports resolutions up to 1024 x 768 Z ZIF zero insertion force A type of socket or connector that allows a computer chip to be installed or removed with no stress applied to either the chip or its socket Zip A popular data compression format Files that have been compressed with the Zip format are called Zip files and usually have a filename extension of zip A special kind of zipped file is a self extracting file which has a filename extension of exe You can unzip a self extracting file by double clicking it Zip drive A high capacity floppy drive developed by Iomega Corpo

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