Dell OptiPlex GX200 Service Manual

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Dell™ OptiPlex™ GX200 Service Manual
Small Form-Factor Chassis — Removing and Replacing Parts
Low-Profile Chassis — Removing and Replacing Parts
Midsize Chassis — Removing and Replacing Parts
Mini Tower Chassis — Removing and Replacing Parts
Notes, Notices, and Cautions
Throughout this guide, blocks of text may be accompanied by an icon and printed in bold type or in italic type. These blocks are notes, notices,
and cautions, and they are used as follows:
NOTE: A NOTE indicates important information that helps you make better use of your system.
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 potentially hazardous situation which, if not avoided, may result in minor or moderate
injury.
Information in this document is subject to change without notice.
© 2000 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text: Dell and OptiPlex are trademarks of Dell Computer 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 Computer Corporation
disclaims any proprietary interest in trademarks and trade names other than its own.
Initial release: 18 April 2000
Last revised: 31 Jul 2000

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Summary of Contents for Dell OptiPlex GX200

  • Page 1 Trademarks used in this text: Dell and OptiPlex are trademarks of Dell Computer 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 Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
  • Page 2: Recommended Tools

    System Board Drives Overview This section provides procedures for removing and replacing the components, assemblies, and subassemblies in the Dell OptiPlex low-profile chassis GX200 system. Unless otherwise noted, each procedure assumes that the following conditions exist: You have performed the steps in "Precautionary...
  • Page 3: Internal Views

    possible damage to the system board. 4. Wear a wrist grounding strap, and clip it to an unpainted metal surface, such as the padlock loop on the back of the chassis. If a wrist grounding strap is not available, touch any unpainted metal surface on the back of the computer or on the computer chassis, such as the power supply, to discharge any static charge from your body before touching anything inside the computer.  While you work, ...
  • Page 4 To remove the low-profile chassis computer cover, perform the following steps: 1. Press in on the two securing buttons until the cover is free to swing up (see Figure 3). 2. Raise the back  of the cover, and pivot it toward the front of the computer. 3. Lift the cover off the hooks at the front of the chassis. 4.
  • Page 5: Eject, Power, And Reset Buttons

    7. If no other changes are required in System Setup, press <Esc> and follow the menu directions to restart the system and implement the changes. 8. Run the Dell Diagnostics to verify that the system is operating correctly. Eject, Power, and Reset Buttons Figure 5.
  • Page 6: Control Panel

    Control Panel Figure 7. Control Panel Removal 1 Control panel 2 Chassis intrusion switch To remove the control panel in the low-profile chassis, perform the following steps: 1. Disconnect the control panel cable from the PANEL connector on the system board (see "System Board Labels"...
  • Page 7 Drives NOTE: In all of the following procedures, left and right refer to your left and right as you face the front of the computer. Figure 9. Drive Locations   1 5.25-inch  drive 2 3.5-inch diskette drive 3 Hard-disk drive 4 Chassis intrusion switch NOTE: Computer configurations differ.
  • Page 8 2. Loosen the captive screw securing the hard-disk drive/bracket to the bottom of the chassis. 3. Grasp the drive/bracket, and pivot it upward from the chassis until the two hinge tabs (located on the side opposite the screw) clear the floor divider (see Figure 10).
  • Page 9: System Power Supply

    1 Power cable 2 EIDE interface cable 3 IDE1 connector on system board NOTICE: You must attach the blue connector on the EIDE interface cable to the IDE1 connector on the system board to avoid possible damage to your system. 10.
  • Page 10: Expansion-Card Cage

    Note the routing of the DC power cables underneath the tabs in the chassis as you remove them from the system board and drives. It is important to route these cables properly when you replace them to prevent them from being pinched or crimped. 3.
  • Page 11: System Board Components

    1 Auxiliary power indicator LED (AUX_LED) 2 Wakeup On LAN (WOL) connector 3 PCI expansion slot 1 (PCI1) 4 PCI expansion slot 2 (PCI2) 5 PCI expansion slot 3 (PCI3) Figure 16. PCI/ISA Riser Board (Optional) 1 Auxiliary power LED (AUX_LED) 2 ISA expansion-card connector 1 (ISA1) 3 ISA expansion-card connector 2 (ISA2) 4 Remote Wakeup header (WOL)
  • Page 12 2 Line-out connector 3 Microphone connector 4 NIC connector 5 Video connector 6 Serial port 2 connector 7 USB connectors (2) 8 Keyboard (lower) and mouse (upper) connectors 9 Parallel port (upper) and serial port 1 (lower) connectors 10 Microprocessor connector 11 RIMM sockets (2) 12 DC power 1 connector 13 DC power 2 connector...
  • Page 13: Expansion Cards

    Table 1. System-Board Jumper Settings Jumper Setting Description PSWD Password features are enabled.   (default)   Password features are disabled.   (default) SAFE Reserved (do not change).   (default) BIOS Reserved (do not change).   (default) RTCRST Real-time clock reset. Can be used for troubleshooting purposes.  ...
  • Page 14 1 8-bit ISA expansion card 2 16-bit ISA expansion card 3 32-bit PCI expansion card Expansion-Card Removal To remove an expansion card, perform the following steps: Remove the computer cover. 2. If necessary, disconnect any cables connected to the card. 3.
  • Page 15 1 Filler bracket 3. Insert the expansion card into the expansion-card connector. If the expansion card is full-length, insert the front end of the card into the corresponding card guide on the inside front of the chassis as you insert the card into its connector. Insert the card's edge connector firmly into the expansion-card slot. 4.
  • Page 16 CAUTION: The microprocessor/heat sink assembly can get extremely hot. Be sure that the assembly has had sufficient time to cool before you touch it. NOTE: Dell recommends that only a technically knowledgeable person perform this procedure. To replace a microprocessor, perform the following steps: Remove the computer cover.
  • Page 17: System Battery

    1 Microprocessor package 2 Socket release lever 3 ZIF socket 6. Unpack the new microprocessor package. If any of the pins on the new microprocessor appear to be bent, return the microprocessor package. NOTICE: You must position the microprocessor package correctly in the ZIF socket to avoid permanent damage to the microprocessor and the computer when you turn on the system.
  • Page 18: System Board

    1 Battery 2 Socket CAUTION: There is a danger of the new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions. To remove the system battery, perform the following steps: 1.
  • Page 19 4. Push evenly on both sides of the system board as you slide and lock it into position (do not twist the system board). 5. Reconnect all cables to the system board. Replace the 5.25-inch drive. Replace the expansion-card cage. Replace the computer cover.
  • Page 20: Recommended Tools

    System Board Drives Overview This section provides procedures for removing and replacing the components, assemblies, and subassemblies in the Dell OptiPlex 200 midsize chassis system. Unless otherwise noted, each procedure assumes that the following conditions exist: You have performed the steps in "Precautionary...
  • Page 21: Computer Cover

    Riser Boards). Computer Cover Figure 1. Computer Cover Removal 1 Securing buttons (2) To remove the computer cover, perform the following steps: 1. Turn off your computer and peripherals, and observe the caution for your personal safety and protection of the equipment described in "Precautionary Measures."...
  • Page 22: Internal View

    7. If no other changes are required in System Setup, press <Esc> and follow the menu directions to reboot the system and implement the changes. 8. Run the Dell Diagnostics to verify that the system is operating correctly. Internal View Figure 3 shows the chassis with the cover removed.
  • Page 23: Expansion-Card Cage

    1 5.25-inch front-panel insert 2 Ring tabs (2) 3 Posts (2) To remove a 5.25-inch front-panel insert, perform the following steps: 1. Hold the bezel with the front facing you. 2. From the front of the top cover, use your thumbs to press inward on the insert until it snaps free of the cover. To replace a 5.25-inch front-panel insert, position the two ring-tabs over the posts on the inside of the bay opening, and then press the ring tabs over the posts.
  • Page 24 1 Chassis hooks (2) 2 Mounting screw 3 Control panel 4 Control panel cable To remove the control panel, perform the following steps: Remove the hard-disk drive cage. 2. Disconnect the control panel cable from the PANEL connector on the system board (see Figure 14 or the internal service label for the location of the PANEL connector).
  • Page 25 2. Disconnect the DC power and data cables from the back of the drive. 3. Squeeze the retaining tabs that extend from each side of the drive bracket and slide the bracket out of the bay (see Figure 8).    4. Turn the drive assembly upside down and unscrew the four screws that secure the drive to the bracket (see Figure NOTE: For easier access inside the chassis, you may want to rotate the power supply...
  • Page 26 1 "Handle" on bracket 2 Screw securing drive to chassis 4. Slide the drive into the chosen bay of the bracket, orienting it so that the connectors on the back of the drive face the back of the chassis— and the power input connector is closest to the floor of the chassis—when the bracket is reinstalled (see Figure 11).
  • Page 27: System Power Supply

    1 Interface connector 2 Power input connector on drive 3 Lip 4 Rail 5 IDE1 connector 6 IDE2 connector 7 DC power cable 8 EIDE cable NOTICE: You must match the colored strip on the EIDE cable with pin 1 on the IDE1 connector to avoid possible damage to your system.
  • Page 28: System Board Components

    To remove the system power supply, perform the following steps: Rotate the system power supply. 2. Disconnect the power cables from all drives. 3. Remove the power supply cables from the system board. 4. Lift the front of the power supply until it stops. Then rotate the power supply away from the chassis. 5.
  • Page 29 21 Diskette/tape-drive connector 22 Riser board connector 23 Real-time clock reset (RTCRST) jumper 24 Battery 25 Modem audio connector 26 Fan connector 27 CD audio cable connector System Board Jumpers Figure 15 shows the location of the jumpers on the system board. Table 1 lists the system board jumpers and their settings.
  • Page 30: Expansion Cards

    CD_IN CD-ROM audio interface connector RIMM socket RIMM_x DSKT Diskette/tape drive interface connector ENET Integrated NIC connector EXT_SPKR External speaker connector Microprocessor fan connector HDLED Hard-disk drive LED connector EIDE interface connector IDEn INTRUDER Chassis intrusion switch connector KYBD Keyboard connector MODEM Modem audio connector MONITOR...
  • Page 31 5. Grasp the card by its outside corners, and ease it out of its connector. 6. If you are removing the card permanently, install a metal filler bracket over the empty card-slot opening. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain Federal Communications Commission (FCC) certification of the system.
  • Page 32 5. When the card is firmly seated in the connector, secure the card's mounting bracket to the chassis with the screw you removed in step Replace the expansion-card cage. 7. Connect any cables that should be attached to the card. 8.
  • Page 33 CAUTION: The microprocessor/heat sink assembly can get extremely hot. Be sure that the assembly has had sufficient time to cool before you touch it. NOTE: Dell recommends that only a technically knowledgeable person perform this procedure. To replace a microprocessor, perform the following steps: Remove the computer cover.
  • Page 34 4. Remove the metal retaining clip that secures the heat sink assembly to the microprocessor package by gently pushing down on the folded part of the retaining clip with a small screwdriver. The retaining clip hooks over the sides of the zero insertion force (ZIF) socket. Figure 24.
  • Page 35: System Battery

    securing the microprocessor package. Figure 26. Microprocessor Package Installation 1 Microprocessor 2 ZIF socket 3 Pin-1 (beveled corner) 9. Unpack the heat sink included in the replacement kit. NOTICE: Do not reuse the old heat sink assembly when you replace the microprocessor package. Using the old heat sink assembly can cause the microprocessor to overheat because there is not enough thermal compound between the old heat sink assembly and the microprocessor package.
  • Page 36: System Board

    1. If possible, enter System Setup and print the System Setup screens. Remove the computer cover. 3. Remove the system battery by carefully prying it out of its socket with your fingers or with a blunt, nonconducting object such as a plastic screwdriver.
  • Page 37 7. Reinstall all components on the system board by performing steps 2 through 8 of the removal process in reverse. Replace the computer cover. Reset the chassis intrusion detector. While in System Setup, confirm that the system data area correctly identifies the type of microprocessor installed.
  • Page 38: Recommended Tools

    Chassis Intrusion Switch System Board Overview This section provides procedures for removing and replacing the components, assemblies, and subassemblies in the Dell OptiPlex mini tower chassis GX200 system. Unless otherwise noted, each procedure assumes that the following conditions exist: You have performed the steps in "Precautionary...
  • Page 39: Internal Views

    possible damage to the system board. 4. Wear a wrist grounding strap, and clip it to an unpainted metal surface, such as the padlock loop on the back of the chassis. If a wrist grounding strap is not available, touch any unpainted metal surface on the back of the computer or on the computer chassis, such as the power supply, to discharge any static charge from your body before touching anything inside the computer.  While you work, ...
  • Page 40 To remove the mini tower computer cover, perform the following steps: 1. Face the back of the computer and slide the upper half of the padlock ring to the left to unlock the cover release mechanism (see Figure 3). 2. Face the left side cover and press the release button, located at the bottom-left corner of the front bezel (see Figure 3). 3.
  • Page 41: Front Bezel

    7. If no other changes are required in System Setup, press <Esc> and follow the menu directions to reboot the system and implement the changes. 8. Run the Dell Diagnostics to verify that the system is operating correctly. Front Bezel Figure 5.
  • Page 42: Control Panel

    1 Diskette eject button 2 Power button 3 Reset button To remove the eject, power, and reset buttons, perform the following steps: 1. Lay the front bezel on a flat work surface, with the back of the bezel facing up. 2.
  • Page 43: Chassis Intrusion Switch

    1 Control panel 2 Control panel connector 3 Chassis intrusion cable connector 4 Chassis intrusion switch To remove the control panel, perform the following steps: 1. Disconnect the control panel cable from the control panel connector on the system board (see "System Board Labels"...
  • Page 44 Remove the control panel from the front panel. 2. Disconnect the chassis intrusion switch cable  from the control panel (see Figure 9). Note the routing of the chassis intrusion cable as you remove the cable from the chassis. Chassis hooks may hold the cable in place inside the chassis. 3.
  • Page 45 When you replace the 3.5-inch diskette drive, be sure that the two hooks on the right side of the bracket engage the mounting holes in the side of the 3.5-inch diskette drive. 5.25-Inch Drive Figure 12. 5.25-Inch Drive Removal 1 Bracket tabs (2) To remove a 5.25-inch drive from a drive bay, perform the following steps.
  • Page 46 Figure 14. New Drive Insertion 1 5.25-inch drive           NOTICE: You must match the colored strip on the cable with pin 1 on the drive's interface connector to avoid possible damage to your system. 8. Connect a DC power cable to the power input connector on the back of the drive (see Figure 15). Figure 15. 5.25-Inch Drive Cables Attachment 1 DC power cable 2 EIDE interface connector (on drive) 9.
  • Page 47 1 Drive bracket slide rail 2 Chassis hinge slots 3 Hinge tabs 4 Sliding tab 5 Drive bracket To remove a hard-disk drive from the mini tower's internal hard-disk drive bracket, perform the following steps. CAUTION: To avoid the possibility of electric shock, turn off the computer and any peripherals, disconnect them from electrical outlets, and then wait at least 5 seconds before you remove the computer cover.
  • Page 48 CAUTION: To avoid the possibility of electric shock, turn off the computer and any peripherals, disconnect them from electrical outlets, and then wait at least 5 seconds before you remove the computer cover. Also, before you install a drive, see the other precautions in "Precautionary Measures."...
  • Page 49: System Power Supply

    1 Blue interface connector (on EIDE1) 2 Interface cable 3 Power cable 4 Power input connector on drive 5 Interface connector on drive NOTICE: You must match the blue connector on the interface cable to the IDE1 connector on the system board to avoid possible damage to your system.
  • Page 50: Expansion-Card Cage

    6. Lower the power supply down and away from the computer.   Expansion-Card Cage NOTICE: Use a wrist grounding strap as explained in "Precautionary Measures." To remove the expansion-card cage, perform the following steps: 1. Examine any cables connected to expansion cards through the back-panel openings and disconnect any cables that will not reach to where the cage must be placed upon removal from the chassis.
  • Page 51: System Board Components

    1 Auxiliary power indicator (AUX_LED) 2 PCI expansion slot 5 (PCI5) 3 Wake On LAN (WOL) connector 4 PCI expansion slot 1 (PCI1) 5 Auxiliary power connector Figure 23. Mini Tower Chassis PCI/ISA Riser Board 1 PCI expansion slot 1 (PCI1) 2 PCI expansion slot 2 (PCI2) 3 PCI expansion slot 3 (PCI3) 4 PCI expansion slot 4 (PCI4)
  • Page 52 1 Line-in connector 2 Line-out connector 3 Microphone connector 4 NIC connector 5 Video connector 6 Serial port 2 connector 7 USB connectors (2) 8 Keyboard (lower) and mouse (upper) connectors 9 Parallel port (upper) and serial port 1 (lower) connectors 10 Microprocessor connector 11 RIMM sockets (2) 12 DC power 1 connector...
  • Page 53 Jumpers are small blocks on a circuit board with two or more pins emerging from them. Plastic plugs containing a wire fit down over the pins. The wire connects the pins and creates a circuit. NOTICE: Make sure your system is turned off before you change a jumper setting. Otherwise, damage to your system or unpredictable results may occur.
  • Page 54: Expansion Cards

    MONITOR Video connector MOUSE Mouse connector PANEL Control panel connector PARALLEL Parallel port connector; sometimes referred to as LPT1 PCI expansion-card connector PCIn* POWER_1 Main power input connector POWER_2 3.3-V power input connector RISER Riser board connector Serial port connector SERIALn SLOT1_PRI Primary microprocessor connector...
  • Page 55 1 Card-edge connector 2 Expansion card 3 Riser board 4 Expansion-card connector 5 Expansion-card cage   CAUTION: Some network cards automatically start up the system when they are connected. To guard against electric shock, be sure to unplug your computer from its electrical outlet before installing any expansion cards.
  • Page 56 CAUTION: The microprocessor SEC cartridge/heat sink assembly can get extremely hot. Be sure that the assembly has had sufficient time to cool before you touch it. NOTE: Dell recommends that only a technically knowledgeable person perform this procedure. To replace a microprocessor, perform the following steps: Remove the computer cover.
  • Page 57 1 Airflow shroud hooks (2) 2 Chassis tabs (2) 3 Airflow shroud 4 Release tabs 5 Heat sink assembly 4. Remove the metal retaining clip that secures the heat sink assembly to the microprocessor package by gently pushing down on the folded part of the retaining clip with a small screwdriver.
  • Page 58: System Battery

    7. Unpack the new microprocessor package. If any of the pins on the new microprocessor appear to be bent, return the microprocessor package. NOTICE: You must position the microprocessor package correctly in the ZIF socket to avoid permanent damage to the microprocessor and the computer when you turn on the system.
  • Page 59: System Board

    1   Battery 2   Socket CAUTION: There is a danger of the new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions. To remove the system battery, perform the following steps: 1.
  • Page 60 Remove the RIMMs the microprocessor/airflow shroud/heat sink assembly, and install them on the replacement board. 2. Set the jumpers on the new system board so that they are identical to those on the old board, unless you are installing a microprocessor upgrade.
  • Page 61 Drives System Board  Overview This section provides procedures for removing and replacing the components, assemblies, and subassemblies in the Dell OptiPlex small form- factor chassis GX200 system. Unless otherwise noted, each procedure assumes that the following conditions exist: You have performed the steps in "Precautionary...
  • Page 62 possible damage to the system board. 4. Wear a wrist grounding strap, and clip it to an unpainted metal surface, such as the padlock loop on the back of the chassis. If a wrist grounding strap is not available, touch any unpainted metal surface on the back of the computer or on the computer chassis, such as the power supply, to discharge any static charge from your body before touching anything inside the computer.  While you work, ...
  • Page 63 1   Padlock ring 2   Securing buttons (2) To remove the computer cover, perform the following steps: 1. Press in to retract the padlock ring into the cover to open (see Figure 3). 2. Press in on the two securing buttons until the cover is free to swing up (see Figure 3). 3. Raise the back of the cover, and pivot it toward the front of the computer. 4. Lift the cover off the hooks at the front of the chassis. 5.
  • Page 64 7. If no other changes are required in System Setup, press <Esc> and follow the menu directions to restart the system and implement the changes. 8. Run the Dell Diagnostics to verify that the system is operating correctly. Eject and Power Buttons Figure 5.
  • Page 65 3. Disconnect the control panel cable from the control panel connector on the system board (see "System Board Labels" for the location of the PANEL connector). Note the routing of the control panel cable as you remove it from the chassis. 4.
  • Page 66 1 Chassis intrusion switch 2 CD-ROM drive 3 3.5-inch diskette drive 4 Hard-disk drive Preliminary Steps You must remove the drive shelf before removing the 3.5-inch diskette drive, the CD-ROM drive, the hard-disk drive, the control panel, the chassis intrusion switch, or the power supply. Figure 9.
  • Page 67 1. If you are replacing a hard-disk drive that contains data you want to keep, make a backup copy of your files before you continue this procedure. Remove the computer cover if not already removed. Remove the drive shelf. 4. Squeeze the tabs on each side of the hard-disk drive/bracket, and pull the hard-disk drive/bracket forward about one inch (see Figure 10). 5.
  • Page 68 Reset the chassis intrusion detector. 17. Test the hard-disk drive by running the Dell Diagnostics (see the online System User's Guide for complete information). 18. If the drive you just installed is the primary drive, install your operating system on the hard-disk drive.
  • Page 69 1. Press down on the release latch on the top left side of the 3.5-inch diskette drive. The 3.5-inch diskette drive will pop up slightly when the latch disengages. 2. Pivot the 3.5-inch diskette drive up and out of the drive shelf. To replace the 3.5-inch diskette drive, perform the following steps: 1.
  • Page 70 1 Interface cable 2 Power cable 3 Power input connector 4 Interface connector Check all cable connections. Fold cables out of the way to provide airflow for the fan and cooling vents. Replace the computer cover; reconnect your computer and peripherals to their electrical outlets, and turn them on. 4.
  • Page 71: Riser Board

    1 Securing lever 2 Expansion-card cage 3 Tabs (2) 4 Hooks (2) To remove the expansion-card cage from the chassis, perform the following steps: Remove the computer cover. NOTICE: Use a wrist grounding strap as explained in "Precautionary Measures." 2. Examine the cables connected to expansion cards through the back-panel openings, and disconnect any cables that will not reach to where the cage must be placed when it is removed from the chassis.
  • Page 72 1 Line-in connector 2 Line-out connector 3 Microphone connector 4 NIC connector 5 Video connector 6 Serial port 2 connector 7 USB connectors (2) 8 Keyboard (lower) and mouse (upper) connectors 9 Parallel port (upper) and serial port 1 (lower) connectors 10 Microprocessor connector 11 RIMM sockets (2) 12 DC power 1 connector...
  • Page 73 Jumpers are small blocks on a circuit board with two or more pins emerging from them. Plastic plugs containing a wire fit down over the pins. The wire connects the pins and creates a circuit. NOTICE: Make sure your system is turned off before you change a jumper setting. Otherwise, damage to your system or unpredictable results may occur.
  • Page 74 MOUSE Mouse connector PANEL Control panel connector PARALLEL Parallel port connector; sometimes referred to as LPT1 PCI expansion-card connector PCIn* POWER_1 Main power input connector POWER_2 3.3-V power input connector RISER Riser board connector Serial port connector SERIALn SLOT1_PRI Primary microprocessor connector USB connectors Expansion Cards The small form-factor GX200 chassis can accommodate up to two half-length 32-bit PCI expansion cards.
  • Page 75 1 Expansion card 2 Card-edge connector 3 Riser board 4 Expansion-card connector 5 Expansion-card cage CAUTION: Some network cards automatically start up the system when they are connected. To guard against electric shock, be sure to unplug your computer from its electrical outlet before installing any expansion cards.
  • Page 76 Figure 26. RIMM Installation 1 Securing clips (2) 2 Notches (2) 6. Run the Dell Diagnostics to verify that the RIMMs are operating properly. Microprocessor/Cooling Fan/Heat Sink Assembly Figure 27. Microprocessor/Cooling Fan/Heat Sink Assembly 1 Cooling fan/heat sink assembly...
  • Page 77 Remove the computer cover. 2. Disconnect the cooling fan power cable from its system board connector. 3. Remove the metal retaining clip that secures the cooling fan/heat sink assembly to the microprocessor package by gently pushing down on the folded part of the retaining clip with a small screwdriver. The retaining clip hooks over the sides of the zero insertion force (ZIF) socket.
  • Page 78 NOTICE: Do not reuse the old heat sink assembly when you replace the microprocessor package. Using the old heat sink assembly can cause the microprocessor to overheat because there is not enough thermal compound between the old heat sink assembly and the microprocessor package. 9.
  • Page 79 1   System board 2   Screw To remove the system board, perform the following steps: 1. Disconnect all cables from their connectors at the back of the computer. 2. Remove the drive shelf assembly. 3. Remove the expansion-card cage. 4. Remove the hard-disk drive/bracket.

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