Dell D820 User's Manual
Contents
1. Pin Signal USB5V xo Back to Contents Page Back to Contents Page System Board Dell Latitude D820 Service Manual Removing the System Board Installing the System Board Removing the System Board A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide 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 The system board s BIOS chip contains the Service Tag which is also visible on a barcode label on the bottom of the computer The replacement kit for the system board includes a CD that provides a utility for transferring the Service Tag to the replacement system board 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hard drive see Hard Drive 3 Remove the hinge cover see Hinge Cover 4 Remove the keyboard see Keyboard 5 Remove the display assembly see Display Assembly 6 Remove the DIMM A and DIMM B memory modules see Memory 7 Remove any installed wireless communications cards see Communications Cards 8 Remove the palm rest see Palm Rest 9 Remove the modem see Modem 10 Remove the card reader see PC Card Reader 11 Remove the processor thermal cooling assembly see2. Hex nut driver Flash BIOS update program 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 Shut down the operating system a Save and close any open files exit any open programs click Start gt Shut Down gt Shut down gt OK The computer turns off after the operating system shutdown process finishes Ensure that the computer and any attached devices are turned off If your computer and attached devices do 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 00 PP m m 3 CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product I nformation 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 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 pull tab not on the cable itself Some cables have a connector with locking tabs if you are disconnec
3. NOTICE Ensure that the cam lock is in the fully open position before seating the processor module Seating the processor module properly in the ZIF socket does not require force NOTICE A processor module that is not properly seated can result in an intermittent connection or permanent damage to the processor and ZIF socket 1 Align the pin 1 corner of the processor module so that it points to the triangle on the system board and insert the processor module into the ZIF socket When the processor module is correctly seated all four corners are aligned at the same height If one or more corners of the module are higher than the others the module is not seated correctly NOTICE Hold the processor down while turning the cam screw to prevent intermittent contact between the cam screw and processor 2 Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board NOTE If a new microprocessor is installed you will receive one of the following a new thermal cooling assembly which will include an affixed thermal pad or you will receive a new thermal pad along with a tech sheet to illustrate proper installation 3 Replace the processor thermal cooling assembly see Processor Thermal Cooling Assembly 4 Update the BIOS using a flash BIOS update program CD see Flashing the BIOS From a CD Back to Contents Page Back to Contents Page Processor Thermal Cooling Assembly Dell Latitu
4. electricity from your body before you touch any of your computer s electronic components You can do so by touching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the display assembly see Removing the Display Assembly 3 Remove the display bezel see Removing the Display Bezel 4 Remove the display panel see Removing the Display Panel 5 Remove the four screws from the top display panel bracket and lift away the bracket 1 screws 4 2 top display panel bracket 3 top cover 6 Slide the display latch toward the right side of the top cover and straight out 1 display latch 2 latch spring 7 Unhook the latch spring from the display latch and then lift away the latch Back to Contents Page Back to Contents Page Fan Dell Latitude D820 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hard drive see Hard Drive 3 Remove the memory module s see Memory 4 Remove any installed wireless communications cards See Communications Cards 5 Remove the p
5. palm rest use your fingers to separate the palm rest from the base by lifting the inside edge of the palm rest 12 Disconnect the touch pad connector and the speaker connector from the system board NOTICE When replacing the palmrest ensure the internal card with Bluetooth wireless technology cable is properly placed on top of the palmrest to avoid damaging the cable Back to Contents Page Back to Contents Page PC Card Reader Dell Latitude D820 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Remove the display assembly see Display Assembly 5 Remove the palm rest see Palm Rest 6 Remove the four M2 x 3 mm screws that secure the PC Card reader to the computer base screws 4 PC Card reader pull tab 7 Use the pull tab to disconnect the PC Card reader cable connector from the system board Back to Contents Page Back to Contents Page Pinout Assignments for I O Connectors USB Connector Video Connector USB Connector S Pa
6. the module down until it clicks into place If you do not feel the click remove the module and reinstall it 5 Replace the memory module cover and tighten the screw NOTICE If the cover is difficult to close remove the module and reinstall it Forcing the cover to close may damage your computer 6 Insert the battery into the battery bay or connect the AC adapter to your computer and an electrical outlet 7 Turn on the computer As the computer boots it detects the additional memory and automatically updates the system configuration information To confirm the amount of memory installed in the computer click the Start button click Help and Support and then click Computer I nformation Back to Contents Page Back to Contents Page Communications Cards Dell Latitude D820 Service Manual Wireless Cards Subscriber Identity Module SIM Card Wireless Cards If you ordered a wireless LAN or WAN card with your computer the card is already installed A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product I nformation Guide NOTICE To avoid damaging the system board you must remove the main battery before you begin working inside the computer Wireless Local Area Network WLAN Cards 1 Follow the procedures in Before You Begin 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Ground yourself by touching one of
7. Dell Latitude D820 Service Manual Before You Begin Processor Thermal Cooling Assembly System Components Keyboard Hard Drive Processor Module Hinge Cover PC Card Reader Memory System Board Display Assembly Battery Latch Communications Cards Base Palm Rest Fan Coin Cell Battery Flashing the BIOS Modem Pinout Assignments for I O Connectors Internal Card with Bluetooth Wireless Technology 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 Information in this document is subject to change without notice 2006 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 Latitude are trademarks of Dell Inc Bluetooth is a registered trademark owned by Bluetooth SIG Inc and is used by Dell under license 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 Model PP04X June 2006 Rev A01 Back to Contents Page Ba
8. ICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of the computer NOTICE To avoid damaging the system board you must remove the main battery before you begin working inside the computer 1 Follow the procedures in Before You Begin 2 Remove the memory module cover see Memory 1 plastic sleeve 2 coin cell battery 3 coin cell battery connector a connector on systemboard EP 3 Remove the coin cell battery connector from the connector on the system board 4 Slide the battery out of the plastic sleeve Back to Contents Page Back to Contents Page System Components Dell Latitude D820 Service Manual A 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 NOTICE Unless otherwise noted each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order display latch Back to Contents Page Back to Contents Page Processor Module Dell Latitude D820 Service Manual Removing the Processor Module Installing the Processor Module Removing the Processor Module CAUTION Before performing the following procedures follow the safety instructions in the Product I nformation Guide CAUTION To prevent static damage to
9. Processor Thermal Cooling Assembly 12 Remove the processor see Removing the Processor Module 13 Remove the four M2 5 x 5 mm system board screws ome 1 M2 5 x 5 mm screws 4 14 Remove the four hex screws on the back of the computer 15 Lift the system board out and away from the base Installing the System Board 1 Perform all the steps in Removing the System Board in reverse order K NOTE When installing the system board ensure that you align the wireless switch on the base with the switch on the system board wireless switch 2 Insert the battery into the battery bay 3 Connect the AC adapter to the computer and to an electrical outlet NOTI CE Before turning on the computer replace all screws and ensure that no stray screws remain inside the computer Failure to do so may result in damage to the computer 4 Turn on the computer K NOTE After replacing the system board enter the computer Service Tag into the BIOS of the replacement system board 5 Insert the CD that accompanied the replacement system board into the appropriate drive Follow the instructions on the screen Back to Contents Page Back to Contents Page Dell Latitude D820 Service Manual 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 t
10. age Back to Contents Page Keyboard Dell Latitude D820 Service Manual A CAUTION Before working inside your Dell computer follow the safety instructions in your Product Information Guide A 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 1 Follow the procedures in Before You Begin 2 Remove the hinge cover see Hinge Cover 3 Remove the three screws at the top of the keyboard NOTICE The keycaps on the keyboard are fragile easily dislodged and time consuming to replace Be careful when removing and handling the keyboard 4 Rotate the keyboard forward and lay it on the palm rest to allow access to the keyboard connector on the system board 5 Pull up on the pull tab to disconnect the keyboard cable connector from the keyboard connector on the system board keyboard 2 keyboard screws 3 keyboard cable connector a keyboard connector oP NOTICE To avoid scratching the palm rest when replacing the keyboard hook the tabs along the front edge of the keyboard into the palm rest and then secure the keyboard in place 6 To replace the keyboard connect the keyboard cable connector to the keyboard connector on the system board 7 Place the tabs along the front edge of the keyboard into the palm rest and lay the keyboard do
11. antenna cables to the WLAN card ensuring that you route the cables correctly Mobile Broadband Cards 1 Follow the procedures in Before You Begin 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Ground yourself by touching one of the metal connectors on the back of the computer K NOTE If you leave the area ground yourself again when you return to the computer 5 Ifa card is not already installed go to step 6 If you are replacing a card remove the existing card a Disconnect the antenna cable or cables from the card antenna cables b Release the card by spreading the metal securing tabs until the card pops up slightly Mobile Broadband card metal securing tabs 2 c Lift the card out of its connector NOTICE The connectors are keyed to ensure correct insertion If you feel resistance check the connectors and realign the card 6 Install the card NOTICE To avoid damaging the Mobile Broadband card never place cables on top of or under the card a Align the card with the connector at a 45 degree angle and press the card into the connector until it clicks NOTE Your Mobile Broadband card may have two or three connectors depending on your configuration Most connectors have color coded markings that correspond to the type of cable required For more specific information about which cable to connect to which connector see the documentation that came with you
12. arge 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the display assembly see Removing the Display Assembly 1 screw covers display bumpers 8 2 display bezel 3 Use a plastic scribe to pry the eight circular screw covers bumpers out of the screw holes on the front of the bezel 4 Remove the eight screws from the front of the bezel NOTICE Carefully separate the bezel from the top cover to avoid damage to the bezel 5 Starting from the sides of the display panel use your fingers to separate the bezel from the top cover and lift the bezel away from the top cover Removing the Display Panel A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the display assembly see Removing the Display Assembly 3 Remove the display bezel see Removing the Display Bezel 4 Remove the four M2 x 3 mm screws from each side of the display panel 5 Lift the display panel out o
13. 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 NOTICE Press and hold the processor down by applying slight pressure to the center of the processor while turning the cam screw to prevent intermittent contact between the cam screw and processor NOTICE To avoid damage to the processor hold the screwdriver so that it is perpendicular to the processor when turning the cam screw O PP 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Remove the display assembly see Display Assembly 5 Remove the palm rest see Palm Rest 6 Remove the processor thermal cooling assembly see Processor Thermal Cooling Assembly NOTICE When removing the processor module pull the module straight up Be careful not to bend the pins on the processor module 7 To loosen the ZIF socket use a small flat blade screwdriver and rotate the ZIF socket cam screw counterclockwise until it comes to the cam stop The ZIF socket cam screw secures the processor to the system board Take note of the arrow on the ZI F socket cam screw 1 ZIF socket 2 ZIF socket cam screw 3 pin 1 corner of processor 8 Use a processor extraction tool to remove the processor module Installing the Processor Module
14. de D820 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide A 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Remove the display assembly see Display Assembly 5 Remove the palm rest see Palm Rest 6 Loosen in consecutive order the six captive screws labeled 1 through 6 in the processor thermal cooling assembly K NOTE The appearance of the thermal cooling assembly for system boards with integrated graphics varies from that for system boards with discrete graphics shown 1 processor thermal cooling assembly 2 captive screws 6 7 Lift the assembly out of the computer Back to Contents Page Back to Contents Page Display Assembly Dell Latitude D820 Service Manual Removing the Display Assembly Removing the Display Bezel Removing the Display Panel Installing the Display Panel Removing the Display Panel Brackets Removing the Display Latch Removing the Display Assembly A CAUTION Before performing the following procedures follow the safety instructions in the Product Informatio
15. efore removing the hard drive Do not remove the hard drive while the computer is turned on in standby mode or in hibernate mode NOTICE Hard drives are extremely fragile even a slight bump can damage the drive K NOTE Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell K NOTE If you are installing a hard drive from a source other than Dell you need to install an operating system drivers and utilities on the new hard drive To replace the hard drive in the hard drive bay 1 Follow the procedures in Before You Begin 2 Turn the computer upside down and remove the two screws that secure the hard drive hard drive screws 2 NOTI CE When the hard drive is not in the computer store it in protective antistatic packaging See Protecting Against Electrostatic Discharge in the Product Information Guide screws 2 on sides of hard drive bezel hard drive bezel 3 Remove the two screws from the sides of the hard drive bezel and pull the bezel off the hard drive 4 Remove the new drive from its packaging Save the original packaging for storing or shipping the hard drive 5 Slide the hard drive bezel that you took off the old hard drive onto the new hard drive and fasten the two screws on the sides of the bezel NOTICE Use firm and even pressure to slide the drive into place If you use excessive force you may damage the connector 6 Slide the new ha
16. ells you how to avoid the problem A CAUTION A CAUTION indicates a potential for property damage personal injury or death Information in this document is subject to change without notice 2006 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 Latitude are trademarks of Dell Inc Bluetooth is a registered trademark owned by Bluetooth SIG Inc and is used by Dell under license 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 Model PP04X June 2006 Rev A01 Back to Contents Page
17. er Computer Orientation a feor fe ert back ja friom Back to Contents Page Back to Contents Page Internal Card with Bluetooth Wireless Technology Dell Latitude D820 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in your Product Information Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching a connector on the back panel of the computer NOTICE To avoid damaging the system board you must remove the main battery before you begin working inside the computer If you ordered an internal card with Bluetooth wireless technology with your computer it is already installed 1 Follow the procedures in Before You Begin 2 Remove the hinge cover see Hinge Cover 1 metal tab 2 card 3 card cable connector NOTICE Be careful when removing the card to avoid damaging the card card cable or surrounding components 3 Remove the card from its compartment in the computer a Slide the card to the right b Lift the card out of the computer 4 Disconnect the card from the card cable connector card card connector card cable connector Back to Contents Page Back to Contents Page Coin Cell Battery Dell Latitude D820 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in your Product I nformation Guide NOT
18. f the top cover M2 x 3 mm screws 8 display panel Installing the Display Panel 1 Replace the eight M2 x 3 mm screws that secure the display panel to the top cover 2 Route the display feed flex cable and antenna cables so that they rest in the notch located in the bottom edge of the top cover 3 Replace the display bezel Removing the Display Panel Brackets A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide A 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the display assembly see Removing the Display Assembly 3 Remove the display bezel see Removing the Display Bezel 4 Remove the display panel see Removing the Display Panel 5 Remove the four screws from the right display panel side bracket and lift away the bracket display panel display panel side bracket 6 Remove the four screws from the left display panel side bracket and lift away the bracket Removing the Display Latch A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide CAUTION To prevent static damage to components inside your computer discharge static
19. n Guide 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Pull straight up on the pull tab that is attached to the display feed flex cable to disconnect the cable from the system board 2 1 antenna cable 2 display cablepulttab LT 5 Disconnect the antenna cable s 6 Carefully remove the antenna cable and the display cables from their routing guides 7 Close the display 8 Turn the computer upside down with the back of the computer facing you 9 From the bottom of the computer remove the two M2 5 x 8 mm screws labeled D M2 5 x 8 mm screws labeled D 2 10 From the back of the computer remove the two M2 5 x 8 mm screws po i SS ar o a a 1 amp bisi Ga per Y merete errr ES D ua TENETE EPEAN M2 5 x 8 mm screws 2 11 Turn the computer top side up and open the display 12 Lift the display assembly out of the computer base Removing the Display Bezel A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide CAUTION To prevent static damage to components inside your computer disch
20. ots it detects the additional memory and automatically updates the system configuration information To confirm the amount of memory installed in the computer click Start Control Panel System To install a memory module in DIMM B 1 Follow the procedures in Before You Begin 2 Turn the computer upside down loosen the captive screw on the memory module cover and then remove the cover 1 captive screw on memory module cover NOTICE To prevent damage to the memory module connector do not use tools to spread the memory module securing clips 3 If you are replacing a memory module remove the existing module a Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up b Remove the module from the connector 1 memory module 2 securing clips 2 NOTICE If you need to install memory modules in two connectors install a memory module in the connector labeled DIMMA before you install a module in the connector labeled DIMMB Insert memory modules at a 45 degree angle to avoid damaging the connector K NOTE If the memory module is not installed properly the computer may not boot properly No error message indicates this failure 4 Ground yourself and install the new memory module a Align the notch in the module edge connector with the tab in the connector slot b Slide the module firmly into the slot at a 45 degree angle and rotate
21. ouching an unpainted metal surface 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hard drive see Hard Drive 3 Remove the hinge cover see Hinge Cover 4 Remove the keyboard see Keyboard 5 Remove the display assembly see Removing the Display Assembly 6 Remove the palm rest see Palm Rest 7 Remove the processor thermal cooling assembly see Processor Thermal Cooling Assembly 8 Remove the system board see Removing the System Board 9 To remove the battery latch use a plastic scribe or screwdriver to carefully dislodge the battery latch from the base and lift the latch away Back to Contents Page Back to Contents Page Before You Begin Dell Latitude D820 Service Manual Recommended Tools Turning Off Your Computer Before Working Inside Your Computer Computer Orientation This chapter 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 follow the safety information in the Product Information Guide A component can be replaced 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 screwdriver Small plastic scribe
22. ove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Ground yourself by touching one of the metal connectors on the back of the computer NOTICE If you leave the area ground yourself again when you return to the computer 5 If you are replacing a memory module remove the existing module NOTICE To prevent damage to the memory module connector do not use tools to spread the memory module securing clips a Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up b Remove the module from the connector 1 memory module 2 securing clips 2 NOTICE Insert memory modules at a 45 degree angle to avoid damaging the connector K NOTE If the memory module is not installed properly the computer may not boot properly No error message indicates this failure 6 Ground yourself and install the new memory module a Align the notch in the module edge connector with the tab in the connector slot b Slide the module firmly into the slot at a 45 degree angle and rotate the module down until it clicks into place If you do not feel the click remove the module and reinstall it 7 Replace the keyboard see Keyboard 8 Replace the hinge cover Hinge Cover 9 Insert the battery into the battery bay or connect the AC adapter to your computer and an electrical outlet 10 Turn on the computer As the computer bo
23. r Mobile Broadband card b Connect the antenna cable or cables to the Mobile Broadband card ensuring that you route the cables correctly Subscriber Identity Module SIM Card A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product I nformation Guide 1 Follow the procedures in Before You Begin 2 Slide the SIM card into the slot with the cut off corner of the card facing away from the slot Back to Contents Page Back to Contents Page Modem Dell Latitude D820 Service Manual A CAUTION Before you begin the following procedure see the safety instructions in the Product I nformation Guide NOTICE To avoid damaging the system board you must remove the main battery before you begin working inside the computer see Before You Begin A 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove the keyboard see Keyboard 4 Remove the display assembly see Display Assembly 5 Remove the palm rest see Palm Rest 6 Remove the M2 x 3 mm screw that attaches the modem to the system board 7 Pull up on the pull tab to disconnect the modem from the connector on the s
24. rd drive into the bay and into the connector until it is fully seated 7 Replace the two hard drive screws Back to Contents Page Back to Contents Page Hinge Cover Dell Latitude D820 Service Manual A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product I nformation Guide NOTICE To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface such as a connector on the back of the computer NOTICE The hinge cover is fragile and can be damaged if extreme force is used Be careful when removing the hinge cover 1 Follow the procedures in Before You Begin 2 Turn the computer top side up and then open the display all the way 180 degrees so that it rests on your work surface NOTICE To avoid damaging the hinge cover do not lift the cover on both sides simultaneously 3 Insert a plastic scribe in the indent to carefully pry up the hinge cover on the right side 4 Ease the hinge cover up moving from right to left and remove it NOTICE When replacing the hinge cover ensure the internal card with Bluetooth wireless technology cable is properly placed on top of the palmrest to avoid damaging the cable To replace the hinge cover insert the left edge of the cover into the hinge cover slot and press from left to right until the cover snaps into place Back to Contents P
25. rocessor thermal cooling assembly see Processor Thermal Cooling Assembly 6 Remove the processor see Removing the Processor Module 7 Remove the hinge cover see Hinge Cover 8 Remove the keyboard see Keyboard 9 Remove the palm rest see Palm Rest 10 Disconnect the fan power cable from the system board 11 Remove the M2 5 x 5 mm fan screws and lift the fan out of the base fan assembly M2 5 x 5 mm fan screw Back to Contents Page Back to Contents Page Flashing the BIOS Dell Latitude D820 Service Manual Flashing the BIOS From a CD Flashing the BIOS From the Hard Drive If a BLOS update program CD is provided with the new system board flash the BIOS from the CD If you do not have a BIOS update program CD flash the BIOS from the hard drive Flashing the BIOS From a CD 1 Ensure that the AC adapter is plugged in and that the main battery is installed properly K NOTE If you use a BIOS update program CD to flash the BIOS set up the computer to boot from a CD before inserting the CD 2 Insert the BIOS update program CD and restart the computer Follow the instructions that appear on the screen The computer continues to boot and updates the new BIOS When the flash update is complete the computer will automatically reboot 3 Press lt F2 gt during POST to enter the system setup program 4 Press lt Alt gt and lt F gt to reset the computer defaults 5 Press lt Esc gt select Save change
26. s and reboot and press lt Enter gt to save configuration changes 6 Remove the flash BIOS update program CD from the drive and restart the computer Flashing the BIOS From the Hard Drive 1 Ensure that the AC adapter is plugged in the main battery is properly installed and a network cable is attached 2 Turn on the computer 3 Locate the latest BIOS update file for your computer at support dell com 4 Click Download Now to download the file 5 If the Export Compliance Disclaimer window appears click Yes Accept this Agreement The File Download window appears 6 Click Save this program to disk and then click OK The Save In window appears 7 Click the down arrow to view the Save In menu select Desktop and then click Save The file downloads to your desktop 8 Click Close if the Download Complete window appears The file icon appears on your desktop and is titled the same as the downloaded BIOS update file 9 Double click the file icon on the desktop and follow the instructions on the screen Back to Contents Page Back to Contents Page Hard Drive Dell Latitude D820 Service Manual A CAUTION If you remove the hard drive from the computer when the drive is hot do not touch the metal housing of the hard drive A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product I nformation Guide NOTICE To prevent data loss turn off your computer b
27. se Dell Latitude D820 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hard drive see Hard Drive 3 Remove the hinge cover see Hinge Cover 4 Remove the internal card with Bluetooth wireless technology 5 Remove the keyboard see Keyboard 6 Remove the display assembly see Removing the Display Assembly 7 Remove the palm rest see Palm Rest 8 Remove the processor thermal cooling assembly see Processor Thermal Cooling Assembly 9 Remove the processor see Removing the Processor Module 10 Remove the modem see Modem 11 Remove the fan see Fan 12 Remove the system board see Removing the System Board Back to Contents Page Back to Contents Page Battery Latch Dell Latitude D820 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide A 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 t
28. the metal connectors on the back of the computer K NOTE If you leave the area ground yourself again when you return to the computer 5 Ifa card is not already installed go to step 6 If you are replacing a card remove the existing card a Disconnect the antenna cables from the card 1 antenna cables b Release the card by spreading the metal securing tabs until the card pops up slightly 1 WLAN card 2 metal securing tabs 2 c Lift the card out of its connector NOTICE The connectors are keyed to ensure correct insertion If you feel resistance check the connectors and realign the card K NOTE Do not insert a Mobile Broadband network card into the WLAN card slot K NOTE The WLAN card may have two or three connectors depending on the type of card you ordered 6 Install the card NOTI CE To avoid damaging the WLAN card never place cables on top of or under the card a Move any antenna cables out of the way to make space for the WLAN card b Align the card with the connector at a 45 degree angle and press the card into the connector until it clicks NOTE Your WLAN card may have two or three connectors depending on the type of card you ordered Most connectors have color coded markings that correspond to the type of cable required K NOTE For more specific information about which cable to connect to which connector see the documentation that came with your WLAN card 7 Connect the
29. ting 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 NOTICE To avoid damaging the computer perform the following steps before you begin working inside the computer Ensure that the work surface is flat and clean to prevent the computer cover from being scratched Turn off your computer see Turning Off Your Computer NOTICE To disconnect a network cable first unplug the cable from your computer and then unplug it from the network wall jack Disconnect any telephone network and USB cables from the computer 4 Disconnect your computer and all attached devices from their electrical outlets 5 Turn over the computer NOTICE To avoid damaging the system board you must remove the main battery before you service the computer 6 Remove the battery a Slide the battery bay latch release on the bottom of the computer toward the back of the computer until the latch is engaged b Grasp the battery by the battery tab and slide the battery horizontally toward the side of the computer c Lift to remove the battery from the bay 1 2 1 battery 2 battery bay latch release 7 Press the power button to ground the system board 8 Remove any installed ExpressCards PC Cards or smart cards from the comput
30. wn on the palm rest 8 Replace the three screws at the top of the keyboard 9 Replace the hinge cover Back to Contents Page Back to Contents Page Memory Dell Latitude D820 Service Manual A CAUTION Before you begin any of the procedures in this section follow the safety instructions in the Product I nformation Guide NOTICE If your computer has only one memory module install the memory module in the connector labeled DIMM A 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 function at optimal performance K NOTE Memory modules purchased from Dell are covered under your computer warranty The computer has two memory slots DIMM A and DIMM B DIMM A is located on top of the computer under the keyboard and DIMM B is located on the bottom of the computer under the memory module cover DIMM A holds the basic memory module as configured from the factory If you did not order additional memory DIMM B is empty Generally if you add memory you use DIMM B If you are upgrading memory you may need to install memory in DIMM A and DIMM B depending on the extent of the upgrade To install a memory module in DIMM A 1 Follow the procedures in Before You Begin 2 Rem
31. ystem board modem cable connector modem pull tab NOTICE Do not disconnect the modem cable from the system board 8 Disconnect the modem cable connector from the modem Back to Contents Page Back to Contents Page Palm Rest Dell Latitude D820 Service Manual A CAUTION Before performing the following procedures follow the safety instructions in the Product Information Guide 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 1 Follow the instructions in Before Working Inside Your Computer 2 Remove the hinge cover see Hinge Cover 3 Remove any devices installed in the media bay 4 Remove the keyboard see Keyboard 5 Remove the display assembly see Removing the Display Assembly 6 Remove the internal card with Bluetooth wireless technology see Internal Card with Bluetooth Wireless Technology 7 Remove the three screws labeled M2 5X5 from the top of the palm rest r gt Fc ieee 8 Turn the computer bottom side up 9 Remove the hard drive see Hard Drive 10 Remove the twelve M2 5 x 5 mm screws from the bottom of the computer 3 P ie a o 9 z J oh Ad s NOTICE Carefully separate the palm rest from the base to avoid damage to the palm rest 11 Starting at the back center of the
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