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Dell 5100C Laptop User Manual

1. Processor Processor types Intel Pentium 4 5XXX and 6XXX processors with Hyper Threading technology Pentium D 8XXX dual core processors no Hyper Threading Intel Celeron D processors Level 1 L1 cache 16 KB for Pentium 4 5XXX and 6XXX processors and Celeron D processors 2 x 16 KB for Pentium D 8XXX dual core processors Level 2 L2 cache 1 MB for Pentium 4 5XXX processors 2 MB for Pentium 4 6XXX processors 2 x 1 MB for Pentium D 8XXX processors 128 KB for Celeron D processors depending on your computer configuration pipelined burst eight way set associative write back SRAM Memory Type 400 MHz and 533 MHz DDR2 unbuffered SDRAM Memory connectors Memory capacities 256 MB 512 MB 1 GB or 2 GB non ECC Maximum memory NOTE See Addressing Memory With 4 GB Configurations to verify the amount of memory available to the operating system BIOS address FOOOOh Computer Information Chip set Intel 945G Express 2 BIOS chip NVRAM 4 Mb NIC integrated network interface capable of 10 100 Mbps communication System clock 800 MHz data rate Interrupt levels Intel integrated Graphics Media Accelerator GMA 950 Sigmatel STAC9220 Expansion Bus Bus type PCI Express x1 and x16 Bus speed PCI Express x1 slot bidirectional speed 500 MB s x16 slot bidirectional speed 8 GB sec connector one x1 connector data width maximum one PCI Express lane connector one x16 conne
2. Blinking amber A power supply or system board failure has Check the diagnostic lights to see if the specific problem is identified occurred Also see Power Problems in your computer Owner s Manual Solid green and a beep code A problem was detected while the BIOS was See Beep Codes for instructions on diagnosing the beep code Also during POST executing check the diagnostic lights to see if the specific problem is identified Solid green power light and no The monitor or the graphics card may be faulty or Check the diagnostic lights to see if the specific problem is identified See beep code and no video during incorrectly installed Video and Power Problems in your computer Owner s Manual POST Solid green power light and no An integrated system board device may be Check the diagnostic lights to see if the specific problem is identified If beep code but the computer faulty the problem is not identified contact Dell for technical assistance See locks up during POST your computer Owner s Manual for information on how to contact Dell Hard Drive Problem Description Suggested Resolution Activity Light Solid green The hard drive activity light is on when the computer reads data from or writes data to the hard drive The light No corrective action is might also be on when a device such as a CD player is operating required Diagnostic Lights A CAUTION Before you begin any of the procedures in this section follow th
3. The Boot Device Menu appears listing all available boot devices 4 Select a device and press lt Enter gt For example if you are booting to a USB memory key highlight USB Flash Device and press lt Enter gt K NOTE To boot to a USB device the device must be bootable To make sure your device is bootable check the device documentation K NOTE You can also change the boot sequence using the Boot Sequence options in the System Setup Options Changing Boot Sequence for Future Boots 1 Enter system setup 2 Press the arrow keys to highlight the Boot Sequence menu option and press lt Enter gt to access the menu E NOTE Write down your current boot sequence in case you want to restore it 3 Press the up and down arrow keys to move through the list of devices 4 Press the spacebar to enable or disable a device enabled devices have a checkmark 5 Press the lt u gt key or the lt d gt key to move a selected device up or down the list Clearing Forgotten Passwords A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide 1 Follow the procedures in Before You Begin 2 To clear the password remove the jumpers from pins 1 and 2 3 Replace the computer cover 4 Connect your computer and monitor to electrical outlets and turn them on 5 After the Microsoft Windows desktop appears on your compute
4. Align the pin 1 corners of the processor and socket socket pin 1 indicator processor processor socket release lever alignment notc hes 2 processor pin 1 indicator NOTICE Socket pins are delicate To avoid damage ensure that the processor is aligned properly with the socket and do not use excessive force when you install the process Be careful not to touch or bend the pins on the system board 4 Set the processor lightly in the socket and ensure that the processor is level in the socket When the processor is positioned correctly press it with minimal pressure to Seat it 5 When the processor is fully seated in the socket close the processor cover 6 Pivot the socket release lever back toward the socket and snap it into place to secure the processor NOTICE When you install the heat sink assembly do not touch the thermal interface to prevent damage to the thermal interface material on the interface NOTICE If you are not installing a processor upgrade kit from Dell reuse the original heat sink assembly when you replace the processor If you installed a processor replacement kit from Dell return the original heat sink assembly and processor to Dell in the same package in which your replacement kit was sent 7 Replace the fan assembly if you removed it 8 Plug the fan cable into the FAN connector on the system board 9 Install the heat sink assembly 10 Plug the power cable into the 12VPOW
5. Before You Begin A CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before opening the cover 2 Open the computer cover CAUTION The heat sink assembly can get very hot during normal operation Be sure that the assembly has had sufficient time to cool before you touch it gt NOTICE 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 the heat sink assembly 4 Open the processor cover processor cover processor socket release lever NOTICE Carefully remove the processor from the socket to avoid permanent damage to the processor 5 To remove the processor from the socket lift the processor vertically in one motion Leave the release lever extended in the release position so that the socket is ready for the new processor Installing the Processor NOTICE Ground yourself by touching an unpainted metal surface on the back of the computer 1 Unpack the new processor NOTICE 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 2 If the release lever on the socket is not fully extended move it to that position 3
6. Replace the computer cover reconnect the computer and devices to electrical outlets and then turn them on 8 Remove the card driver from the operating system Hard Drive CAUTION Before you begin any of the procedures in this section follow the safety instructions located in the Product Information Guide CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before removing the cover OP gt NOTICE To avoid damage to the drive do not set it on a hard surface Instead set the drive on a surface such as a foam pad that will sufficiently cushion it NOTICE If you are replacing a hard drive that contains data you want to keep back up your files before you begin this procedure Check the documentation for the drive to verify that it is configured for your computer Removing a Hard Drive 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 Press the blue tabs on either side of the guide bracket toward each other and slide the drive up and out of the computer serial ATA data cable Installing a Hard Drive 1 Remove the old hard drive 2 Unpack the replacement hard drive and prepare it for installation 3 Check the documentation for the drive to verify that it is configured for your computer 74 NOTE If your replacement hard drive does not have the plastic guide bracket attached remove the bracket from the old drive by unsnapping it from
7. a USB memory device select the USB device and move it so it becomes the first device in the list Identifies and defines the floppy drive attached to the FLOPPY connector on the system board as Off USB Internal or Read Only Enables or disables a SATA device such as a hard drive On the default setting enables the interface so that the device can be used Displays the Controller type SATA Port number the drive is using Drive ID number Capacity Link Speed and whether the drive is controlled by the BIOS Enables or disables an ATA device such as a CD or DVD drive On the default setting enables the interface so that the device can be used Displays the Controller type ATA Port number the drive is using Drive ID number Capacity Link Speed and whether the drive is controlled by the BIOS Identifies and defines the SATA modes You can set the SATA controller to Normal or Combo mode You can set the NIC to On default Off or On w PXE When the On w PXE setting is active available only for the future boot process the computer prompts the user to press lt Ctrl gt lt Alt gt lt b gt Pressing this key combination causes a menu to display that allows you to select a method for booting from a network server If a boot routine is not available from the network server the computer attempts to boot from the next device in the boot sequence list Enables or disables the onboard audio controller Set to On defaul
8. and pivot the cover up using the bottom hinges as leverage points 6 Release the cover from the hinge tabs and set it aside in a secure location Back to Contents Page Back to Contents Page Removing and Installing Parts Dell Dimension 5100C Service Manual Memor Fan Assembl Cards Processor Modem CD DVD Drive Power Suppl ppy Drive Optional Media Card Reader Front 1 O Panel Heat Sink Assembl Memory You can increase your computer memory by installing memory modules on the system board Your computer supports DDR2 memory K NOTE Buffered memory is not supported on this computer DDR2 Memory Overview DDR2 memory modules should be installed in pairs of matched memory size speed and technology 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 module to determine the module capacity 4 NOTE Always install DDR2 memory modules in the order indicated on the system board The recommended memory configurations are A pair of matched memory modules installed in DIMM connectors 1 and 2 white securing clips or A pair of matched memory modules installed in DIMM connectors 1 and 2 and another matched pair installed in DIMM connectors 3 and 4 black securing clips NOTICE Do not install ECC memory modules 4 NOTE If you install DDR2 667 MHz memory the speed is
9. from the computer Media Card Reader drive release latch Installing a Media Card Reader 1 Follow the procedures in Before You Begin 2 Remove the computer cover E NOTE If necessary remove the Media Card Reader screws 3 Remove the Media Card Reader from its packaging and ensure that all the screws are included amp drive gt ail drive bracket N i A nen 4 Slide the drive into place until you feel a click or feel the drive securely installed 5 data cable 6 Replace the CD DVD drive 7 Replace the computer cover NOTICE To connect a network cable first plug the cable in to the network port or device and then plug it in to the computer 8 Connect your computer and devices to their electrical outlets and turn them on See the documentation that came with the drive for instructions on installing any software required for drive operation 9 Enter system setup and select the appropriate Drive option 10 Verify that your computer works correctly by running the Dell Diagnostics Heat Sink Assembly A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide Follow the procedures in Before You Begin 1 2 Remove the computer cover 3 Remove the CD DVD drive if installed heat sink assembly CAUTION The heat sink assembly can get very hot during normal operation Be sure that the assembly has
10. jumper PSWD processor fan power connector ATX12V1 connector FAN_CPU memory module connectors 2 4 memory module connectors 1 3 floppy drive battery socket BATTERY RTC reset jumper RTCRST connector DSKT PCI Express x16 connector SLOT1 SATA connector SATAD CD DVD connector PCI Express x1 connector SLOT2 IDE_OPT front panel IEEE front panel 13 connector connector ne ON FRONT PANEL EEE 1394 connector F modem 1394_CON power connector ATXPWR 1 network connector and USB connectors 2 NIC_USB1 S PDIF audio line in line out connector SPDIF microphone side external modem connector Surround center and LFE connectors AUDIO USB connectors 3 USB_BACK Media Card Reader connector F_USB video connector VGA Jumper Settings The jumper locations are shown below Description PSWD Password features are enabled eS 110 default Password features are disabled RTCRST Real time clock reset in normal operation 1 d Q efault Al Clear CMOS settings 1 Power Supply DC Connector Pin Assignments DC Power Connector P1 11 12 13 14 15 16 17 15 19 20 21 22 E A ES E5 E5 Caf CCT L a 2 a D w f 6 S0 T Pin Number Signal Name 18 AWG Wire asvoe frea svoe frea T 1 r r z r r OLTOoOINPOoOoTuUPR IT WwInNnte Use 22 AWG wire instead of 18 AWG
11. port or device and then plug it into the computer 6 Connect your computer and devices to electrical outlets and turn them on System Board Removing the System Board A CAUTION Before you begin any of the procedures in this section follow the safety instructions in your Product Information Guide 1 Follow the procedures in Before You Begin A CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before opening the cover 2 Open the computer cover NOTICE 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 the power supply any installed_cards and any components that restrict access to the system board 4 Disconnect all cables from the system board 9 Disconnect the modem cable and ground wire from the modem a Disconnect the modem cable from the modem b Use a size 1 screwdriver to remove the screws that secure the modem and ground wire to the system board and set the screws aside Before you remove the existing system board visually compare the replacement system board to the existing system board to make sure that you have the correct part Remove the six screws that attach the system board to the bottom of the computer Lif
12. reduced to 533 MHz If you install mixed pairs of DDR2 400 MHz PC2 3200 and DDR2 533 MHz PC2 4300 memory the modules function at 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 the other connectors matched pair of memory modules in DIMM connectors and 2 white securing clips matched pair of memory modules in DIMM connectors3 and 4 black securing clips K NOTE Memory purchased from Dell is covered under your computer warranty NOTICE 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 DIMM connectors 1 and 2 or DIMM connectors 3 and 4 Addressing Memory With 4 GB Configurations Your computer supports a maximum of 4 GB of memory when you use two 2 GB DIMMs Current operating systems such as Microsoft Windows XP can only use a maximum of 4 GB of address space however the amount of memory available to the operating system is less than 4 GB Certain components within the computer require address space in the 4 GB range Any address space reserved for these compo
13. the drive Snap the bracket onto the new drive ie mee tabs 2 ae N drive A poy sT py a ra S X EA gt P a A ur guide bracket 4 Connect the power cable and the serial ATA data cable to the drive serial ATA data cable 5 Ensure that all connectors are properly cabled and firmly seated 6 Slide the drive into place until you feel a click or feel the drive securely installed hard drive 7 Replace the computer cover NOTICE To connect a network cable first plug the cable into the network port or device and then plug it into the computer 8 Connect your computer and devices to electrical outlets and turn them on See the documentation that came with the drive for instructions on installing any software required for drive operation CD DVD Drive A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide A CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before opening the cover Removing a CD DVD Drive 1 Follow the procedures in Before You Begin NOTICE Do not pull the drive out of the computer by the drive cables Doing so may cause damage to cables and the cable connectors 2 Remove the computer cover 3 Pull up on the drive release latch and slide the drive toward the back of the computer 4 Carefully so as not to damage
14. the attached interface cable lift the drive away from the computer CD DVD drive drive release K NOTE The interface cable is held in place by the metal drive bracket and does not need to be removed from the drive TE as YY amp amp oo E7 interface cable connector on syste m board 5 Disconnect the interface cable from the interface cable connector on the system board 6 Set the drive aside in a secure location Installing a CD DVD 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 If you are installing an IDE drive configure the drive for the cable select setting 2 Connect the interface cable to the interface cable connector on the system board X interface cable connector on system bo ard 4 Check all cable connections and fold cables out of the way to provide airflow for the fan and cooling vents 5 Replace the computer cover 6 Connect your computer and devices to their electrical outlets and turn them on 7 See the documentation that came with the drive for instructions on installing any software required for drive operation 8 Enter system setup and select the appropriate Drive option 9 Verify that your computer works correctly by running the Dell Diagnostics Floppy Drive Optional A CAUTION Before you begin any of the procedures in this section fo
15. the cover downward 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 to the upright position NOTICE To connect a network cable first plug the cable into the network port or device and then plug it into the computer 4 Connect your computer and devices to electrical outlets and turn them on Back to Contents Page Back to Contents Page Removing the Computer Cover Dell Dimension 5100C Service Manual A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide 1 Follow the procedures in Before You Begin A CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before opening the cover NOTICE Ensure that sufficient space exists to support the removed cover at least 30 cm 1 ft of desk top space NOTICE Ensure that you are working on a level protected surface to avoid scratching either the computer or the surface on which it is resting 2 Lay your computer on its side with the computer cover facing up 3 Pull back the cover latch release on the top panel security cable slot cover release latch computer cover 4 Locate the three hinge tabs on the bottom edge of the computer 5 Grip the sides of the computer cover
16. type numbers in both the date and time fields This feature does not work if you turn off your computer using a power strip or surge protector The options are S1 a suspend state where the computer is running in a low power mode and S3 a standby state where the power is reduced or turned off for most components however system memory remains active Some graphics cards require that the SERR DMI message be disabled The default setting is On This setting restores the computer s factory installed default settings Displays the system event log When set to On default your computer starts more quickly because it skips certain configurations and tests This option involves the rightmost bank of keys on your keyboard When set to On default this option activates the numeric and mathematical features shown at the top of each key When set to Off this option activates the cursor control functions labeled on the bottom of each key This option allows you to specify the function keys to display on the screen when the computer starts This option enables or disables keyboard error reporting when the computer starts Boot Sequence This feature allows you to change the boot sequence for devices NOTICE If you modify any boot sequence settings save the new settings to avoid losing the changes Option Settings Diskette Drive The computer attempts to boot from the floppy drive If the floppy disk in the drive is not boo
17. 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 System Setup Screens The system setup screen displays current or changeable configuration information for your computer Information on the screen is divided into three areas the options list active options field and key functions Option Field This field contains information about each option In this field you can view your current settings and make changes to your settings Use the right and left arrow keys to highlight an option Press lt Enter gt to make that selection active Options List This field appears on the left side of the system setup window The field is a scrollable list containing features that define the configuration of your computer including installed hardware power conservation and security features Scroll up and down the list with the up and down arrow keys As an option is highlighted the Option Field displays more information about that option and the option s current and available settings Press lt Enter gt to expand or contract each of the main option fields Key Functions This field appears below the Option Field and lists keys and their functions within the active system setup field System Setup Options K NOTE Depending on your computer BIOS version and installed devices the items listed i
18. 0 to 135 V at 50 60 Hz 180 to 265 V at 50 60 Hz 100 V at 50 60 Hz for Japanese computers Backup battery 3 V CR2032 lithium coin cell Physical Temperature Operating Storage Maximum vibration Maximum shock Operating bottom half sine pulse with a change in velocity of 50 8 cm sec 20 inches sec Storage 27 G faired square wave with a velocity change of 508 cm sec 200 inches sec Altitude Operating 15 2 to 3048 m 50 to 10 000 ft Storage 15 2 to 10 668 m 50 to 35 000 ft Back to Contents Page Back to Contents Page System Setup Dell Dimension 5100C Service Manual Overview Entering System Setup System Setup Options Boot Sequence Clearing Forgotten Passwords Clearing CMOS Settings 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 NOTICE 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 blue DELL logo appears press lt F2 gt immediately If
19. 12 pin connector one 10 pin header one 34 pin header one 2 x 12 connector one 2 x 2 connector one 2 x 5 header always connected by cable to the front panel supports front panel EEE1394 port Controls and Lights Power control Power light push button green light Blinking green in sleep state solid green for power on state amber light Blinking amber indicates a problem with an installed device solid amber indicates an internal power problem see Power Problems in your computer Owner s Manual Link integrity light on integrated network adapter green light A good connection exists between a 10 Mbps network and the computer orange light A good connection exists between a 100 Mbps network and the computer off no light The computer is not detecting a physical connection to the network Activity light on integrated network adapter yellow blinking light Diagnostic lights four lights on the front panel See Dell Diagnostics for an explanation of the diagnostic light codes Standby power light AUX_PWRLED on the system board Activity light optional Media Card Reader green blinking light Power DC power supply Wattage 275 W Heat dissipation 460 7 BTU hr Voltage See the safety instructions in the fixed voltage power supply 110 V at 50 60 Hz Product Information Guide for important voltage setting information manual selection and auto sensing power supplies 9
20. Connect your computer and devices to electrical outlets and turn them on 10 Right click the My Computer icon 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 A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide NOTICE 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 Before You Begin 2 Remove the computer cover 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 ease the module back and forth to remove it from the connector Cards A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide NOTICE 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 Your Dell computer provides the following slots for PCI Express cards One PCI Express x16 card slot One PCI E
21. D drive 7 Replace the computer cover NOTICE To connect a network cable first plug the cable in to the network port or device and then plug it in to the computer 8 Connect your computer and devices to their electrical outlets and turn them on See the documentation that came with the drive for instructions on installing any software required for drive operation 9 Enter system setup and select the appropriate Drive option 10 Verify that your computer works correctly by running the Dell Diagnostics Media Card Reader For information about using the Media Card Reader see your Owner s Manual A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide NOTICE 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 Media Card Reader 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 Remove the CD DVD drive if installed 4 Remove the hard drive 5 Disconnect the data cable from the back of the Media Card Reader and from the Media Card Reader connector on the system board data cable 6 Pull up on the drive release latch and slide the Media Card Reader toward the back of the computer Then lift to remove the drive
22. DC Power Connector P2 Pin Number Signal Name 18 AWG Wire DC Power Connector P3 3 3 VDC svoe Red Back to Contents Page Back to Contents Page Dell Dimension 5100C Service Manual K NOTE A NOTE indicates important information that helps you make better use of your computer NOTICE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem _ CAUTION A CAUTION 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 2005 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 and Dimension are trademarks of Dell Inc Intel Pentium Intel SpeedStep and Celeron are registered trademarks of Intel Corporation Microsoft and Windows are registered trademarks of Microsoft Corporation Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own April 2005 Rev A00 Back to Contents Page
23. Dell Dimension 5100C Service Manual Before You Begin Removing and Installing Parts Technical Overview Replacing the Computer Cover Specifications Troubleshooting Tools Removing the Computer Cover System Setup Notes Notices and Cautions K NOTE A NOTE indicates important information that helps you make better use of your computer NOTI CE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem _ CAUTION A CAUTION 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 2005 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 and Dimension are trademarks of Dell Inc Intel Pentium Intel SpeedStep and Celeron are registered trademarks of Intel Corporation Microsoft and Windows are registered trademarks of Microsoft Corporation Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products Dell Inc disclaims any proprietary interest in trademarks and trade names other than its own April 2005 Rev A00 Back to Contents Page Tr
24. ER connector on the system board 11 Replace the computer cover NOTICE To connect a network cable first plug the cable into the network port or device and then plug it into the computer 12 Connect your computer and devices to electrical outlets and turn them on Modem A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide NOTICE Before you remove or install the modem make sure to disconnect all telephone and network cables from your computer NOTICE 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 Replacing the Modem 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 Remove the hard drive K NOTE For easier access to the modem it may be necessary to remove the power cable from the power connector on the system board modem cable screws 2 power connector on system board 4 Remove the existing modem a Disconnect the modem cable from the modem b Use a small Phillips screwdriver to remove the two screws that secure the modem to the system board and set the screws aside c Pull straight up on the attached pull tab to lift the modem out of its connector on the system board NOTICE The conn
25. This test typically takes an hour or more and requires you to answer questions periodically Test Custom Test Tests a specific device You can customize the tests you want to run Symptom Lists the most common symptoms encountered and allows you to select a test based on the symptom of the problem you are having Tree 2 If a problem is 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 and follow the instructions on the screen If you cannot resolve the error condition contact Dell For information about contacting Dell see your Owner s Manual K NOTE The Service Tag for your computer is located at the top of each test screen If you contact Dell technical support will ask for your Service Tag 3 If you run a test from the Custom Test or Symptom Tree option click the applicable tab described in the following table for more information Tab e Results Displays the results of the test and any error conditions encountered Errors Displays error conditions encountered error codes and the problem description Help Describes the test and may indicate requirements for running the test Configuration Displays your hardware configuration for the selected device The Dell Diagnostics obtains configuration information for all devices from system setup memory and various internal tests and it displays the information in the device lis
26. age Technical Overview Dell Dimension 5100C Service Manual Front View Back View Inside View of Your Computer System Board Components Power Supply DC Connector Pin Assignments Front View K NOTE The front panel door does not close when you are using certain Flash Media or IEEE 1394 USB or headphone connectors 1 CD DVD drive Press this button to eject a CD DVD from the drive eject button 2 CD DVD drive The drive activity light is on when the computer reads data from the CD activity light or DVD drive 3 USB 2 0 Use the front USB connectors for devices that you connect occasionally connectors 2 such as joysticks or cameras see System Setup for more information on booting to a USB device It is recommended that you use the back USB connectors for devices that typically remain connected such as printers keyboards and mice or for bootable USB devices which may not function properly if attached to the front connectors 4 IEEE 1394 Attach high speed serial multimedia devices such as digital video connector cameras It is recommended that you use the back IEEE 1394 connector for devices that typically remain connected such as external hard drives and other storage devices 5 vents For adequate cooling do not block any of the vents NOTICE Ensure that there is a minimum of two inches of space between all vents and any object near these vents NOTICE Do not lift or carry
27. ck to Contents Page Before You Begin Dell Dimension 5100C Service Manual Getting Started Recommended Tools Turning Off Your Computer Before Working Inside Your Computer Getting Started This document provides procedures for removing and installing the components in your computer Unless otherwise noted each procedure assumes that the following conditions exist You have performed the steps in Turning Off Your Computer and Before Working Inside Your Computer You have read the safety information in your Dell Product Information Guide A component can be replaced or if purchased separately installed by performing the removal procedure in reverse order Recommended Tools The procedures in this document may require the following tools Small flat blade screwdriver Phillips 0 and 2 screwdrivers Phillips 1 screwdriver Flash BIOS update program floppy disk or CD Turning Off Your Computer NOTICE To avoid losing data save and close any open files and exit any open programs before you turn off your computer 1 Shut down the operating system a Save and close any open files exit any open programs click the Start button and then click Turn Off Computer b Inthe Turn off computer window click Turn off The computer turns off after the operating system shutdown process finishes 2 Ensure that the computer and any attached devices are turned off If your computer and attache
28. ctor size 164 pins connector data width maximum 16 PCI Express lanes Externally accessible Available devices Internally accessible one slimline 3 5 inch media bay for optional floppy drive or optional Media Card Reader one slimline 5 25 inch drive bay Serial ATA drive USB memory devices CD drive DVD drive DVD RW drive DVD CD RW combo drive DVD RW and Media Card Reader one bay for 1 inch high hard drive Connectors External connectors IEEE 1394 Network adapter Modem System board connectors IDE drive Serial ATA Fan PCI Express x1 PCI Express x16 USB MDC Front panel audio Front panel Power Processor power IEEE 1394 one 6 pin powered back panel connector one 6 pin powered front panel connector data transfer speeds 100Mb s 200Mb s and 400Mb s 15 hole D SUB connector two front panel and five back panel USB 2 0 compliant connectors data transfer speeds 1 5Mb s 12Mb s and 480Mb s five back panel connectors for line in line out microphone surround sound and center Low Frequency Effects LFE channel back panel S PDIF connector front panel miniature headphone connector for line out front panel microphone connector RJ 45 connector RJ 11 MDC 1 5 connector one 50 pin connector one 26 pin connector one 7 pin connectors one 5 pin connectors 36 pin connector 164 pin connector 10 pin header for optional Media Card Reader 3 5 inch bay device one
29. d devices did not automatically turn off when you shut down your operating system press and hold the power button for 4 seconds Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide CAUTION Handle components and cards with care Do not touch the components or contacts on a card Hold a card by its edges or by its metal mounting bracket Hold a component such as a processor by its edges not by its pins NOTICE 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 NOTICE When you disconnect a cable pull on its connector or on its strain relief loop not on the cable itself Some cables have a connector with locking tabs if you are disconnecting this type of 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 oO gt NOTI CE To avoid damaging the computer perform the following steps before you begin working inside the computer 1 Turn off your computer NOTICE To di
30. e positive side of the connector b While supporting the battery connector press the battery toward the positive side of the connector and pry it up out of the securing tabs on the negative side of the connector battery en we release a ga lever iT gt a a ba f Z N gt securing ee z 1 L Aj tabs 2 NOTICE To avoid damage to the battery connector you must firmly support the connector while installing or removing a battery 7 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 on the positive side of the connector c Press the battery straight down into the connector until it snaps into place 8 Replace the hard drive 9 Replace the computer cover NOTICE To connect a network cable first plug the cable into the network port or device and then plug it into the computer 10 Connect your computer and devices to electrical outlets and turn them on 11 Enter system setup and restore the settings you recorded in step 1 12 Properly dispose of the old battery See the Product Information Guide for battery disposal information Back to Contents Page Back to Contents Page Specifications Dell Dimension 5100C Service Manual Processor Drives Connectors Computer Information Controls and Lights Audio Expansion Bus Environmental
31. e safety instructions in the Product Information Guide To help you troubleshoot a problem your computer has four lights labeled 1 2 3 and 4 on the front panel When the computer starts normally the lights flash After the computer starts all four lights display solid green If the computer malfunctions the color and sequence of the lights identify the problem Light Pattern Problem Description Suggested Resolution QDOO The computer is in a normal off condition Plug the computer into a working electrical outlet and press the power button Also see has successfully booted to the operating Power Problems in your Owner s Manual system or a possible pre BlOS failure has occurred QAOB A possible processor failure has occurred Contact Dell For information about contacting Dell see your Owner s Manual 0000 Memory modules are detected but a If you have two or more memory modules installed remove the modules reinstall memory failure has occurred one module and then restart the computer If the computer starts normally reinstall an additional module Continue until you have identified a faulty module or reinstalled all modules without error If available install properly working memory of the same type into your computer If the problem persists contact Dell see your computer Owner s Manual for information about contacting Dell 0090 0000 A possible graphics card failure has occurred A possib
32. eader or floppy drive Back View Pp ep pa ka be I ka E kaa pes hebei ba Bez bex kes Joa Bs Jax AA RARA AH ARAN bakina ba B bea be ba ba x bea be ba ba bea ben kea ber Din Bs ios Bo fs aes Bo Jie aoa TAI AAJAANIANA RADAR A ADA AAAAARAAAAAAAAANAAN ARAARARAAAAA oe We ss ec Be 1 voltage selection switch may not be See the safety instructions in the Product available on all computers Information Guide for more information 2 power connector Insert the power cable 3 back panel connectors Plug USB and other devices into the appropriate connector 4 Access connectors for any installed PCI Express cards 1 link integrity light Green A good connection exists between a 10 Mbps network and the computer Orange A good connection exists between a 100 Mbps network and the computer Off The computer is not detecting a physical connection to the network network adapter To attach your computer to a network or broadband device connector connect one end of a network cable to either a network port or your network or broadband device Connect the other end of the network cable to the network adapter connector on the back panel of your computer A click indicates that the network cable has been securely attached NOTE Do not plug a telephone cable into the network connector On computers with a network connector card use the connector on the card It is recommended that y
33. ectors are keyed to ensure correct insertion If you feel resistance check the connectors and realign the card 5 Install the new modem a Align the modem with the screw holes and press the modem into the connector on the system board b Connect the modem cable to the modem c Use a Phillips screwdriver to replace and tighten the two screws that secure the modem to the system board 6 Replace the computer cover Replacing the External Modem Connector 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 Remove the existing modem NOTE Note the routing of the modem cable as you remove the modem You must route the cable properly when you replace the modem to prevent the cable from being pinched or crimped 4 Remove the modem cable from the modem 5 Remove the external modem connector a Remove the screw that secures the external modem connector b Slide the external modem connector away from the slot that holds the modem connector in place c Lift the modem cable and connector from the computer screw from the back of the computer external modem external modem ae connector connector 6 To install anew modem cable and external modem connector a Attach the modem cable to the external modem connector b Align the external modem connector with the slot on the back on the computer c Replace the screw that secures the external modem connector in place d Carefully rou
34. ewdriver to remove the screws securing the modem and ground wire to the system board and set the screws aside Replace any components and cables that you removed from the system board Reconnect all cables to their connectors at the back of the computer Close the computer cover NOTICE To connect a network cable first plug the cable into the network port or device and then plug it into the computer 11 Connect your computer and devices to electrical outlets and turn them on Front I O Panel A CAUTION Before you begin any of the procedures in this section follow the safety instructions in your Product I nformation Guide 1 Follow the procedures in Before You Begin A CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before opening the cover 2 Open the computer cover 3 Remove the power supply any installed_cards and any components that restrict access to the system board 4 Remove the system board K NOTE Depending on your computer you may have one or two screws that secure the front I O panel 5 Remove the two screws that hold the front I O panel 6 Pivot the I O panel toward the back of the computer and lift to remove 7 Disconnect any cables that are attached to the front I O panel screws 2 A 2 front I O panel Battery A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Produc
35. had sufficient time to cool before you touch it 4 Remove the two screws from either side of the heat sink assembly NOTICE After you remove the heat sink assembly lay the assembly on its side Do not set the heat sink assembly upright or touch the thermal interface to avoid damage to the thermal interface material on the underside 5 Pivot the assembly toward the back of the computer and lift to remove Fan Assembly A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 Remove the CD DVD drive if installed CAUTION The heat sink assembly can get very hot during normal operation Be sure that the assembly has had sufficient time to cool before you touch it 4 Remove the heat sink assembly 5 Disconnect the fan power cable from the FAN connector on the system board 1 fan assembly fan cable connector fan release tab Processor Removing the Processor NOTICE Do not perform the following steps unless you are familiar with hardware removal and replacement Performing these steps incorrectly could damage your system board For technical service see Contacting Dell in the Owner s Manual A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide 1 Follow the procedures in
36. le floppy or hard drive failure has occurred A possible USB failure has occurred No memory modules are detected Memory modules are detected but a memory configuration or compatibility error exists A possible expansion card failure has occurred Another failure has occurred The computer is in a normal operating condition after POST NOTE The diagnostic lights are not lit after the system successfully boots to the operating system Beep Codes Ifthe computer has a graphics card remove the card reinstall it and then restart the computer Ifthe problem still exists install a graphics card that you know works and restart the computer If the problem persists or the computer has integrated graphics contact Dell see your computer Owner s Manual for information about contacting Dell Reseat all power and data cables and restart the computer Reinstall all USB devices check cable connections and then restart the computer If you have two or more memory modules installed remove the modules reinstall one module and then restart the computer If the computer starts normally reinstall an additional module Continue until you have identified a faulty module or reinstalled all modules without error If available install properly working memory of the same type into your computer If the problem persists contact Dell see your computer Owner s Manual for information about contacting Dell Ensure that no s
37. llow the safety instructions located in the Product Information Guide A CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before removing the cover Removing a Floppy Drive 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 Remove the CD DVD drive if installed 4 Pull up on the drive release latch and slide the drive toward the back of the computer 5 Carefully so as not to damage the attached interface cable lift the drive away from the computer flop py drive drive release 6 Disconnect the interface cable from the system board K NOTE The interface cable is held in place by the metal drive bracket and does not need to be removed from the drive Aa cable release tab io ri inte face cable edge connector i r se e ep interface cable Installing a Floppy Drive K NOTE If the replacement or new floppy drive does not have the shoulder screws use the screws in the drive panel insert 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 Slide the drive into place until you feel a click or feel the drive securely installed 4 Attach the interface cable to the system board inte face cable edge connector cable release tab interface cable 5 Check all cable connections and fold cables out of the way to avoid blocking the fan and cooling vents 6 Replace the CD DV
38. n displays available system security options Displays the current status of the system setup password security feature and allows a new system setup password to be assigned and verified Displays the current status of the system s password security feature and allows a new system password to be assigned and verified This option locks the system password field with the setup password When the field is locked you can no longer disable password security by pressing lt Ctrl gt lt Enter gt when the computer starts Also a valid Admin password is required to change the system password Defaults to Unlocked Enables or disables Execute Disable memory protection technology On is the default setting Power Management AC Recovery Auto Power On Auto Power Time Suspend Mode Maintenance SERR DMI Message Load Defaults Event Log POST Behavior Fastboot lock Key POST Hotkeys Keyboard Errors Determines what happens when AC power is restored to the computer Sets the computer to automatically turn on Choices are every day or every Monday through Friday The default setting is Off This feature does not work if you turn off your computer using a power strip or surge protector Sets time to automatically turn on the computer Time is kept in a 24 hour format hours minutes Change the start up time by pressing the right or left arrow key to increase or decrease the numbers or
39. n this section may not appear or may not appear exactly as listed System Processor Inf Memory Info RGE Into Date Time Boot Sequence Drives Diskette Drive SATA 0 PATA 0 SATA Operation Onboard Devices Integrated NI Integrated Audio Front USB Ports 1394 Controller USB for FlexBay Video Primary Video Video Memory Size Performance HyperThreading Multiple CPU Core SpeedStep HDD Acoustic Mode Security Admin Password System Password Password Changes Execute Disable Displays the following information for the processor installed in the system Processor Type Processor Clock Speed Processor Bus Speed Processor Cache Size Processor ID number whether the processor is Hyperthreading or Multiple Core Capable and if the processor has 64 bit Technology Displays the amount of Installed Memory Memory Speed Memory Channel Mode and a description of the Memory Technology This option also displays a table that describes the memory size whether the memory module is ECC capable single or dual rank type and organization Displays the contents of each PCI slot Controls the system s internal calendar and clock Determines the order in which the system searches for boot devices during system startup NOTE If you insert a boot device and restart the computer this option appears in the system setup menu To boot from
40. nents cannot be used by computer memory Installing Memory A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide NOTICE 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 Before You Begin 2 Remove the computer cover 3 Remove the CD DVD drive if installed 4 Remove the optional Media Card Reader or optional floppy drive if installed 5 Press out the securing clip at each end of the memory module connector Hh memory connector closest to processor a H securing clips 2 6 Align the notch on the bottom of the module with the crossbar in the connector notch memory module cutouts 2 Ny a d crossbar NOTI CE 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 7 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 8 Replace the computer cover NOTICE To connect a network cable first plug the cable into the network port or device and then plug it into the computer 9
41. ofer to provide extremely low bass extension Systems not using subwoofers can shunt the LFE information to the main speakers in the surround sound set up 10 S PDIF connector This connector is used to transmit digital audio without going through an analog audio conversion process 11 VGA connector If your monitor has a VGA connector plug it into a VGA connector on the computer Use this VGA connector if you do not have a PCI Express video card USB 2 0 connectors Use the back USB connectors for devices that typically remain 5 connected such as printers and keyboards It is recommended that you use the back USB connectors for devices that typically remain connected such as printers keyboards and mice or for bootable USB devices which may not function properly if attached to the front connectors 13 1EEE 1394 connector Attach high speed serial multimedia devices such as digital video cameras Inside View of Your Computer A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide A CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before opening the cover CD DVD drive drive release latch release latches on T ront panel door guide bracket 2 power button heat sink assembly System Board Components internal speaker SPKR processor connector CPU password
42. or card connector NOTICE 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 Connect any cables that should be attached to the card See the documentation that came with the card for information about the card cable connections NOTICE To connect a network cable first plug the cable into the network port or device and then plug it into the computer 14 Replace the computer cover reconnect the computer and devices to electrical outlets and then turn them on 15 Install any drivers required for the card as described in the card documentation Removing a PCI Express Card 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 If necessary disconnect any cables connected to the card 4 Pull back the securing tab grasp the card by its top corners and then ease it out of its connector 5 If you are removing the card permanently install a filler bracket in the empty card slot opening If you need a filler bracket contact Dell 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 6 Secure the card s in the computer NOTICE To connect a network cable first plug the cable into the network port or device and then plug it into the computer 7
43. ou use Category 5 wiring and connectors for your network If you must use Category 3 wiring force the network speed to 10 Mbps to ensure reliable operation network activity light Flashes a yellow light when the computer is transmitting or receiving network data A high volume of network traffic may make this light appear to be in a steady on state Use the modem connector to connect your computer to the Internet surround sound Use the black surround sound connector to attach multichannel connector capable speakers line in connector Use the blue line in connector to attach a record playback device such as a cassette player CD player or VCR On computers with a sound card use the connector on the card line out connector Use the green line out connector to attach headphones and most speakers with integrated amplifiers On computers with a sound card use the connector on the card microphone side Use the pink and silver connector to attach a personal computer surround sound microphone for voice or musical input into a sound or telephony connector program On computers with a sound card the microphone connector is on the card The side surround output provides enhanced surround audio for computers with 7 1 speakers center LFE connector LFE Low Frequency Effects Audio channel found in digital surround sound audio schemes that carries only low frequency information of 80 Hz and below The LFE channel drives a subwo
44. oubleshooting Tools Dell Dimension 5100C Service Manual Dell Diagnostics System Lights Diagnostic Lights Beep Codes Dell Diagnostics A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide When to Use the Dell Diagnostics If you experience a problem with your computer perform the checks in this section and run the Dell Diagnostics before you contact Dell for technical assistance NOTICE The Dell Diagnostics works only on Dell computers 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 When the boot device list appears highlight Boot to Utility Partition and press lt Enter gt 4 When the Dell Diagnostics Main Menu appears select the test you want to run see Dell Diagnostics Main Menu Dell Diagnostics Main Menu 1 After the Dell Diagnostics loads and the Main Menu screen appears click the button for the option you want Function Express Test Performs a quick test of devices This test typically takes 10 to 20 minutes and requires no interaction on your part Run Express Test first to increase the possibility of tracing the problem quickly Extended Performs a thorough check of devices
45. pecial memory module memory connector placement requirements exist see Memory Verify that the memory modules that you are installing are compatible with your computer see Memory If the problem persists contact Dell see your computer Owner s Manual for information about contacting Dell Determine if a conflict exists by removing a card not a graphics card see Cards and restarting the computer If the problem persists reinstall the card that you removed remove a different card and then restart the computer Repeat this process for each card If the computer starts normally troubleshoot the last card removed from the computer for resource conflicts see Resolving Software and Hardware Incompatibilities in your computer Owner s Manual If the problem persists contact Dell see your computer Owner s Manual for information about contacting Dell Ensure that the cables are properly connected to the system board from the hard drive CD drive and DVD drive If there is an error message on your 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 The operating system is attempting to boot from a device such as the floppy drive or hard drive check system setup to ensure that the boot sequence is correct for the devices installed on your computer If the problem persists contact Dell see your computer Owner s Manual for informa
46. r shut down the computer 6 Turn off the monitor and disconnect it from the electrical outlet 7 Disconnect the computer power cable from the electrical outlet and press the power button to ground the system board 8 Remove the computer cover 9 Locate the 3 pin password jumper PSWD on the system board and attach the jumper to pins 1 and 2 to re enable the password feature 10 Replace the computer cover NOTICE To connect a network cable first plug the cable into the network port or device and then plug it into the computer 11 Connect your computer and devices to electrical outlets and turn them on Clearing CMOS Settings A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 Remove the hard drive 4 Reset the current CMOS settings a Locate the 3 pin CMOS jumper RTCRST on the system board b Remove the jumper plug from pins 2 and 3 c Place the jumper plug on pins 1 and 2 and wait approximately 5 seconds d Replace the jumper plug on pins 2 and 3 5 Replace the hard drive 6 Replace the computer cover NOTICE 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 Back to Contents Page Back to Contents P
47. rical shock be sure to unplug your computer from its electrical outlet before installing any cards Place the card in the connector and press down firmly Ensure that the card is fully seated in the slot T release tab card retention door securing slot en A 9 jo card connector securing tab 8 Prepare the card for installation See the documentation that came with the card for information on configuring the card making internal connections or otherwise customizing it for your computer CAUTION 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 If you are installing the card into the x16 card connector position the card so the securing slot is aligned with the securing tab and pull the securing tab 10 Place the card in the connector and press down firmly Ensure that the card is fully seated in the slot card not fully n seated cs bracket card fully within slot seated bracket caught outside of slot 11 Before you close the card retention door 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 12 Close the card retention door by snapping it into place to secure the card s card retention do
48. sconnect a network cable first unplug the cable from your computer and then unplug it from the network port or device 2 Disconnect any telephone or network cables from the computer 3 Disconnect your computer and all attached devices from their electrical outlets and then press the power button to ground the system board 4 Remove the computer stand if it is attached A CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before opening the cover 5 Open the computer cover NOTICE 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 Back to Contents Page Back to Contents Page Replacing the Computer Cover Dell Dimension 5100C Service Manual A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product Information Guide 1 Ensure that all cables are connected and folded out of the way 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 Install the cover a Align the bottom of the cover with the tabs located along the bottom of edge of the computer b Using the tabs as leverage rotate
49. t so that USB devices will be detected and supported in the operating system The No Boot option enables a USB port but it does not recognize a USB storage device Enables of disables the IEEE 1394 connections On enables internal USB for FlexBay NOTE This USB option appears only if a FlexBay device is installed This setting specifies which video controller is primary when two video controllers are present on the computer Use this option to select 8 MB default or 1 MB of system memory for an integrated video controller If your computer processor supports Hyper Threading this option appears in the Options List This setting specifies whether more than one core is enabled The performance of some applications may improve with an additional core enabled Defaults to On second core enabled This field specifies whether Enhanced Intel SpeedStep Technology will be enabled for all supported processor s in the computer Bypass Your computer does not test or change the current acoustics mode setting Quiet default The hard drive operates at its most quiet setting Suggested The hard drive operates at the level suggested by the drive manufacturer Performance The hard drive operates at its maximum speed NOTE Switching to performance mode may cause the drive to be noisier but the drive performance is not affected NOTE Changing the acoustics setting does not alter your hard drive image This sectio
50. t Information Guide NOTICE 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 If you have to repeatedly reset time and date information after turning on the computer replace the battery CAUTION 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 instructions Replacing the Battery 1 Record all the screens in system setup so that you can restore the correct settings in step 11 2 Follow the procedures in Before You Begin 3 Remove the computer cover 4 Remove the hard drive 5 Locate the battery socket see System Board Components NOTICE 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 board by prying off the socket or by breaking circuit traces on the system board 6 Remove the battery a Support the battery connector by pressing down firmly on th
51. t in the left pane of the screen The device list may not display the names of all the components installed on your computer or all devices attached to your computer Allows you to customize the test by changing the test settings Close the test screen to return to the Main Menu screen To exit the Dell Diagnostics and restart the computer close the Main Menu screen System Lights Your power button light and hard drive activity light may indicate a computer problem Power Light Problem Description Suggested Resolution Solid green Power is on and the computer is operating No corrective action is required normally On the desktop computer a solid green light indicates a network connection Blinking green The computer is in the suspended state Press the power button move the mouse or press a key on the Microsoft Windows 2000 and Windows XP keyboard to wake the computer Blinks green several times and A configuration error exists Check the diagnostic lights to see if the specific problem is identified then turns off Solid amber The Dell Diagnostics is running a test or a device If the Dell Diagnostics is running allow the testing to complete on the system board may be faulty or incorrectly installed Check the diagnostic lights to see if the specific problem is identified If the computer does not boot contact Dell for technical assistance see your computer Owner s Manual for information about contacting Dell
52. t the system board out of the computer screws 6 ae 2 Place the system board that you just removed next to the replacement system board Replacing the System Board 1 Transfer components from the existing system board to the replacement system board a Remove the memory modules and install them on the replacement system board A CAUTION The heat sink assembly and processor package can get hot To avoid burns ensure that the assembly and package have had sufficient 2 3 time to cool before you touch them b Remove the heat sink assembly and processor package from the existing system board and transfer them to the replacement system board c Remove the modem from the existing system board and transfer it to the replacement system board Configure the settings of the replacement system board Set the jumpers on the replacement system board so that they are identical to the ones on the existing system board K NOTE Some components and connectors on the replacement system board may be in different locations from corresponding connectors on the existing 4 10 system board Orient the replacement system board by aligning the slots in the bottom of the board to the tabs on the computer Slide the system board down onto the pins Replace the screw that holds the system board down Reconnect the modem cable and ground wire to the modem a Reconnect the modem cable from the modem b Use a size 1 scr
53. table if no floppy disk is in the drive or if there is no floppy drive installed in the computer the computer generates an error message Hard Drive The computer attempts to boot from the primary hard drive If no operating system is on the drive the computer generates an error message CD Drive The computer attempts to boot from the CD drive If no CD is in the drive or if the CD has no operating system the computer generates an error message USB Flash Device Insert the memory device into a USB port and restart the computer 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 flash option to the boot menu K NOTE To boot to a USB device the device must be bootable To make sure that your device is bootable check the device documentation Changing 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 or memory key 1 If you are booting to a USB device connect the USB device to a USB connector see Front View 2 Turn on or restart your computer 3 When F2 Setup 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 through the Start menu and try again
54. te the cable wire and reconnect the modem cable to the modem 7 Replace the computer cover Power Supply Removing the Power Supply A CAUTION Before you begin any of the procedures in this section follow the safety instructions in your Product I nformation Guide 1 Follow the procedures in Before You Begin A CAUTION To guard against electrical shock always unplug your computer from the electrical outlet before opening the cover NOTICE 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 2 Disconnect the AC power cable from the power supply connector 3 Open the computer cover 4 Disconnect the DC power cables from the system board and the drives 5 Remove the three power supply screws 6 Slide the power supply approximately 1 inch toward the front of the computer 7 Lift the power supply out of the computer Replacing the Power Supply 1 Lower the power supply into the computer and slide the power supply toward the back of the computer 2 Replace the three power supply screws 3 Reconnect the DC power cables 4 Replace the computer cover 5 Connect the AC power cable to the power supply connector NOTICE To connect a network cable first plug the cable into the network
55. the computer by the vents to avoid damage to the computer NOTICE Keep the vent area clean and dust free to ensure that the computer is adequately ventilated Use only a dry cloth to clean the vent area to avoid water damage to the computer power button Press this button to turn on the computer NOTICE To avoid losing data do not use the power button to turn off the computer Instead perform an operating system shutdown power light The power light illuminates and blinks or remains solid to indicate different states No light The computer is turned off Steady green The computer is in a normal operating state Blinking green The computer is in a power saving state Blinking or solid amber See Power Problems in your computer Owner s Manual front panel Press this button to access the front panel connectors door release button microphone Use the pink microphone connector to attach a personal computer connector microphone for voice or musical input into a sound or telephony program On computers with a sound card the microphone connector is on the card 10 headphone Use the green headphone connector to attach headphones connector 11 FlexBay Use the Flexbay for an optional floppy drive or Media Card Reader 12 diagnostic lights For more information on what each diagnostic light means see Diagnostic Lights 13 front panel This panel covers the CD DVD drive and the optional Media Card door R
56. tion about contacting Dell Your computer might emit a series of beeps during start up if the monitor cannot display errors or problems This series of beeps called a beep code identifies a problem One possible beep code code 1 3 1 consists of one beep a burst of three beeps and then one beep This beep code tells you that the computer encountered a memory problem Code 1 1 2 1 1 3 1 1 4 1 2 1 1 2 2 1 2 3 1 3 3 1 1 3 1 2 3 1 3 1 3 1 through 2 4 4 Cause Microprocessor register failure NVRAM read write failure ROM BIOS checksum failure Programmable interval timer failure DMA initialization failure DMA page register read write failure Video Memory Test failure Slave DMA register failure Master DMA register failure Master interrupt mask register failure Memory not being properly identified or used 3 1 4 Slave interrupt mask register failure Interrupt vector loading failure Keyboard Controller Test failure NVRAM power loss Invalid NVRAM configuration Video Memory Test failure Screen initialization failure Screen retrace failure Search for video ROM failure No timer tick Shutdown failure Gate A20 failure Unexpected interrupt in protected mode Memory failure above address OFFFFh Timer chip counter 2 failure Time of day clock stopped Serial or parallel port test failure Failure to decompress code to shadowed memory Math coprocessor test failure Cache test failure Back to Contents Page Ba
57. xpress x1 card slot K NOTE The slots for the PCI Express x16 and PCI Express x1 cards are half height slots PCI Express A PCI Express x16 card m x1 card AM pe Express x16 card slot ____ PCI Express x1 card slot If you are installing or replacing a PCI Express card follow the procedures in the next section If you are removing but not replacing a card see Removing a PCI Express Card If you are replacing a card remove the current driver for the card from the operating system Installing a PCI Express Card 1 Follow the procedures in Before You Begin 2 Remove the computer cover 3 Pull up on the release tab on the card retention door from the inside to pivot the door open Because the door is captive it will remain in the open position 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 Grasp the card by its top corners and ease it out of its connector 6 Prepare the card for installation See the documentation that came with the card for information on configuring the card making internal connections or otherwise customizing it for your computer A CAUTION Some network adapters automatically start the computer when they are connected to a network To guard against elect

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