Manuals

Small-Form-Factor Chassis -- Removing and Replacing Parts: Dell OptiPlex GX110 Systems Service Manual

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Small-Form-Factor Chassis — Removing and Replacing Parts: Dell™ OptiPlex™ GX110 Systems Service Manual

	Overview		System Power Supply
	Recommended Tools		Expansion-Card Cage
	Precautionary Measures		Riser Board
	Internal Views		System Board Components
	Computer Cover		Expansion Cards
	Eject and Power Buttons		DIMMs
	Control Panel		Microprocessor/Heat Sink Assembly
	Chassis Intrusion Switch		System Battery
	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 GX110 system.

Unless otherwise noted, each procedure assumes that the following conditions exist:

You have performed the steps in "Precautionary Measures."
You have removed the computer cover.
You can replace or reinstall a part by performing the removal procedure in reverse order unless additional information is provided.

Recommended Tools

Most of the procedures in this manual require the use of one or more of the following tools:

Small flat-blade screwdriver
Wide flat-blade screwdriver
#1 and #2 Phillips-head screwdrivers
1/4-inch nut driver

Also, use a wrist grounding strap as explained in "Precautionary Measures."

Precautionary Measures

Before you perform any procedures in this manual, take a few moments to read the following caution for your personal safety and to prevent damage to the system from ESD.

CAUTION: FOR YOUR PERSONAL SAFETY AND PROTECTION OF THE EQUIPMENT

Before you start to work on the system, perform the following steps in the sequence listed:

Turn off the computer and all peripherals.

Disconnect the computer and peripherals from their AC power sources. Also, disconnect any telephone or telecommunication lines from the computer. Doing so reduces the potential for personal injury or shock.

If you are disconnecting a peripheral from the computer or are removing a component from the system board, wait 10 to 20 seconds after disconnecting the computer from AC power before disconnecting the peripheral or removing the component to avoid possible damage to the system board.

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, periodically touch an unpainted metal surface on the computer chassis to dissipate any static electricity that might harm internal components. Also avoid touching components or contacts on a card and avoid touching pins on a chip.

Verify that the auxiliary power indicator on the system board is not on. If it is on, you may need to wait 10 to 30 seconds for it to go out (see Figure 20).

Internal Views

Figure 1 shows a top view of the chassis to help you orient yourself when you work inside the computer.

Figure 1. Orientation View

1	System board
2	Diskette drive
3	Hard-disk drive
4	CD-ROM drive
5	Power supply

Figure 2 shows the chassis with the cover removed.

Figure 2. Inside the Chassis

1	CD-ROM drive interface cable
2	Externally accessible upper drive bay
3	Hard-disk drive
4	Diskette-drive interface cable
5	Hard-disk drive interface cable
6	Expansion-card cage
7	System board
8	Expansion-card slots
9	I/O ports and connectors
10	AC power receptacle
11	Security cable slot
12	Power supply
13	Chassis intrusion switch

Computer Cover

Figure 3. Computer Cover Removal

1 Padlock ring

2 Securing buttons(2)

To remove the computer cover, perform the following steps:

Press in to retract the padlock ring into the cover to open (see Figure 3).
Press in on the two securing buttons until the cover is free to swing up (see Figure 3).
Raise the back of the cover, and pivot it toward the front of the computer.
Lift the cover off the hooks at the front of the chassis.
Disengage the tabs that secure the cover to the top of the chassis, and lift the cover away.

Figure 4. Computer Cover Replacement

To replace the computer cover, perform the following steps:

Face the front of the computer and hold the cover at a slight angle (see Figure 4).

Align the bottom of the cover with the bottom of the chassis and insert the hooks on the cover into the recessed slots on the computer chassis so that the tabs catch the hooks inside the slots.

Pivot the cover down toward the back of the chassis and into position.

Make sure that the securing buttons click into place.

If you wish to install a padlock, slide the padlock ring out of the cover.

Eject and Power Buttons

Figure 5. Eject and Power Button Removal

1	Diskette eject button
2	Power button

To remove the eject and power buttons, perform the following steps:

Lay the computer cover on a flat work surface, with the inside of the top cover facing up.

To remove the 3.5-inch diskette-drive eject button, pull gently on the plastic part of the button until it comes free.

To remove the power button, use a small screwdriver and push in the two plastic clips that hold the button to the bezel. When these clips are released, the button and the spring come free from the bezel.

Control Panel

Figure 6. Control Panel Removal

1	Screw
2	Control panel

To remove the control panel, perform the following steps:

Remove the drive shelf.

Remove the power supply.

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.

Remove the mounting screw that secures the control panel to the chassis.

Disconnect the chassis intrusion switch cable connector from the control panel.

Remove the control panel cable.

Remove the control panel from the chassis.

Note the routing of the control panel cable as you remove it from the chassis.

When you install the replacement control panel, be sure to put the right side of the control panel behind the mounting tab.

Chassis Intrusion Switch

Figure 7. Chassis Intrusion Switch Removal

1	Control panel
2	Chassis intrusion switch

To remove the chassis intrusion switch, perform the following steps:

Remove the drive shelf.

Remove the power supply.

Remove the control panel.

Disconnect the chassis intrusion switch cable connector from the control panel.

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.

Slide the chassis intrusion switch out of its slot and remove the switch and its attached cable from the chassis.

Install the replacement chassis intrusion switch and cable.

To reset the chassis intrusion detector, enter System Setup during the system's power-on self-test (POST). In the Chassis Intrusion option, press the left- or right-arrow key to select Reset, and then choose Enabled, Enabled-Silent, or Disabled (see your User's Guide for instructions).

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 8. Drive Locations

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. Drive Shelf Removal

1	Drive shelf
2	Release tabs (2)

To remove the drive shelf from the chassis, perform the following steps:

Disconnect the power and interface cables from the diskette drive and CD-ROM drive.
Press inward on the two drive shelf release tabs, and pull the shelf forward and out of the chassis (see Figure 9).

Hard-Disk Drive

Figure 10. Hard-Disk Drive/Bracket Removal

1	Drive bracket
2	Release tabs (2)

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 remove a drive, see the other precautions in "Precautionary Measures."

NOTE: This procedure assumes that you have removed the drive shelf from the chassis.

To remove the hard-disk drive and its bracket from the chassis, perform the following steps:

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.
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).
Disconnect the power and interface cables from the back of the drive.
Lift the hard-disk drive/bracket away from the chassis.
Lay the hard-disk drive/bracket on an antistatic surface with its bracket facing up.
Remove the four screws securing the hard-disk drive to the bottom of the bracket (see Figure 11).

Figure 11. Drive Bracket Removal

1	Drive
2	Drive bracket
3	Screws (4)

Figure 12. Hard-Disk Drive/Bracket Replacement

1	Tabs on bottom of drive bracket
2	Hooks on chassis floor
3	Drive bracket
4	Release tabs (2)

To install a replacement hard-disk drive in the chassis, 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. Also, before you install a drive, see the other precautions in "Precautionary Measures."

NOTICE: To avoid possibly damaging the drive by electrostatic discharge (ESD), ground yourself by touching an unpainted metal surface on the back of the computer.

NOTICE: When you unpack the drive, do not set it on a hard surface, which may damage the drive. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.

Prepare the drive for installation.

Check the documentation for the drive to verify that it is configured for your computer system.

If not already done, remove the computer cover.
If not already done, remove the drive bracket from the chassis.
Attach the new hard-disk drive to the bracket with the four screws you removed in step 8 of the previous procedure.
Reinstall the hard-disk drive/bracket in the chassis (see Figure 12).
Place the bracket so that the release tabs extend about one inch past the front of the chassis, and align the tabs on the bottom of the bracket with the hooks on the chassis floor.
Slide the bracket toward the back of the chassis until the tabs snap under the hooks (see Figure 12). The bracket release tabs should also snap into the front of the chassis.

Connect a power cable to the power input connector on the back of the drive, and connect an EIDE cable to the interface connector on the back of the drive (see Figure 13).

Check all connectors to be certain that they are properly cabled and firmly seated.

Figure 13. Hard-Disk Drive Cable Attachment

1	IDE1 connector
2	EIDE cable
3	Power cable

NOTICE: You must connect the blue connector on the EIDE interface cable to the IDE1 connector on the system board to avoid possible damage to your system.

NOTICE: You must match the red-colored stripe on the EIDE cable with pin 1 on the drive's interface connector to avoid possible damage to your system.

NOTICE: You must match the red-colored stripe on the EIDE interface cable with pin 1 on the IDE1 connector to avoid possible damage to your system.

If it is not already connected, connect the blue connector on the EIDE interface cable to the IDE1 connector on the system board.

To locate the IDE1 connector on the system board, see "System Board Components."

Replace the drive shelf and connect the diskette and CD-ROM drive power and interface cables.

Replace the computer cover. Then reconnect your computer and peripherals to their electrical outlets, and turn them on.

Insert a bootable diskette into drive A.

Turn on the computer system.

Enter System Setup and update Primary Drive 0 (see the online System User's Guide for complete information on System Setup).

After you update the System Setup settings, reboot the system.

Partition and logically format your computer's hard-disk drive before proceeding to the next step.

See the documentation for your operating system for instructions.

NOTE: On systems with hard-disk drives larger than 2 GB, create a primary partition of 2 GB and divide the remaining capacity into partitions of 2 GB or less. For example, a system with a 2.5-GB hard-disk drive would have a primary partition of 2 GB (drive C) and a second partition of 500 MB (drive D). Hard-disk drives must be partitioned this way because MS-DOS®–based operating systems (including Microsoft® Windows NT®, when using a FAT16 file system) do not support drive partitions larger than 2 GB.

Test the hard-disk drive by running the Dell Diagnostics (see the online System User's Guide for complete information).

If the drive you just installed is the primary drive, install your operating system on the hard-disk drive.
For instructions, refer to the documentation that came with your operating system.

3.5-Inch Diskette Drive

To remove the 3.5-inch diskette drive from the drive shelf, perform the following steps.

NOTE: This procedure assumes that you have removed the drive shelf from the chassis.

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.
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:

Rotate the replacement drive into position under the right diskette drive bracket on the drive shelf.
Lower the left side of the diskette drive while gently pressing downward, so that the slots on the bottom of the 3.5-inch diskette drive engage in hooks on the drive shelf.
Ensure that the latch on the left side of the 3.5-inch diskette drive engages the top of the diskette drive.

If necessary, press on the latch from the bottom of the drive shelf.
Replace the drive shelf and connect the interface and power cable connectors.

CD-ROM Drive

Figure 14. CD-ROM Drive Removal

1	Drive release tab

To remove a CD-ROM drive, perform the following steps.

NOTE: This procedure assumes that you have removed the drive shelf from the chassis.

Push down on the drive release tab on the right side of the drive (see Figure 14).
Slide the CD-ROM drive assembly forward and up and out of the chassis.

To replace a CD-ROM drive, perform the following steps:

Align the tabs on the bottom of the CD-ROM drive with the notches on the drive shelf, and slide the drive toward the back of the shelf until it snaps into place (see Figure 15).

Figure 15. CD-ROM Drive Replacement

1	Tabs (2)
2	Notches (2)

Connect a power cable and an interface cable to the appropriate connectors on the back of the drive (see Figure 16).

Figure 16. CD-ROM Drive Cable Attachment

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.
Update your system configuration information.

Set the Drive 1 option under Drives: Primary to Auto. See the online System User's Guide for more information.

Verify that your system works correctly by running the Dell Diagnostics (see the online System User's Guide for complete information).

System Power Supply

Figure 17. Power Supply Removal

1	Securing screw hole
2	AC power receptacle
3	Power supply
4	System board DC power connectors (2)
5	Drive DC power connectors (3)

To remove the system power supply, perform the following steps:

Disconnect the AC power cable from the back of the power supply.

Disconnect the DC power cables from the system board and the drives.

Remove the screw on the side of the chassis that secures the power supply.

Remove the screw below the AC power receptacle at the back of the chassis.

Slide the power supply toward the center of the computer approximately 1 inch.

Lift the power supply up and out the computer chassis.

Expansion-Card Cage

Figure 18. Expansion-Card Cage Removal

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."

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.
Locate the securing lever and rotate the lever upward until it stops in an upright position.
Lift the expansion-card cage up and out of the chassis.

To replace the expansion-card cage into the chassis, perform the following steps:

With the securing lever in the upright position, align the tabs in the side of the expansion-card cage with the mating hooks on the left side of the chassis wall (see Figure 18). Slide the expansion-card cage into place.
Rotate the securing lever downward until it is flush with the top side of the chassis. Make sure that the riser board is fully seated in the RISER connector on the system board.
Reconnect any cables you removed in step 2 of the previous procedure.

Riser Board

Figure 19. PCI Riser Board

1	Auxiliary power indicator LED (AUX_LED)
2	Wakeup On LAN jumper (WOL)
3	PCI expansion slot 1 (PCI1)
4	PCI expansion slot 2 (PCI2)

The chassis has a PCI riser board that has two PCI expansion-card connectors (see Figure 19).

To remove the PCI riser board, perform the following steps:

Remove the expansion-card cage.
Remove the expansion cards installed in the slots.
Remove the screws securing the riser board to the expansion-card cage.
Lift the riser board off the expansion card cage.

System Board Components

The subsections that follow contain procedures for removing system board components, which are shown in Figure 20.

Figure 20. System Board Components

1	NIC connector
2	Video connector
3	Fan power connector
4	Serial port 2 connector
5	USB connectors (2)
6	Mouse (upper) and keyboard (lower) connectors
7	Parallel port (upper) and serial port 1 (lower) connectors
8	Riser board connector
9	System board jumpers
10	IDE1 connector
11	IDE2 connector
12	Diskette/tape-drive connector
13	Battery
14	Microprocessor
15	3.3-V power connector
16	Control panel connector
17	DC power connector
18	Auxiliary power indicator
19	DIMM connectors (2)

System Board Jumpers

Figure 21 shows the layout of jumpers on the system board.

Figure 21. System Board Jumpers

Jumper pins are small groups of two or more pins on a circuit board. Plastic jumpers containing a wire fit down over the pins. The wire connects the pins and creates a circuit.

NOTICE: Make sure that your system is turned off before you change a jumper setting. Otherwise, damage to your system or unpredictable results may occur.

To change a jumper setting, pull the jumper off its pin(s) and carefully fit it down onto the pin(s) indicated.

Dell shipped your computer with a PSWD jumper installed, meaning that the password features for this computer are enabled. When you remove the jumper, or when you install the jumper on only one of the two pins, the password features are disabled.

System Board Labels

Table 1 lists the labels for connectors and sockets on your system board, and it gives a brief description of their functions.

Table 1. System Board Connectors and Sockets

Connector or Socket	Description
AUX_LED	Auxiliary power indicator
B1	Battery socket
DIMM_x	DIMM socket
DSKT	Diskette/tape drive interface connector
ENET	Integrated NIC connector
FAN	Microprocessor fan connector
IDEn	EIDE interface connector
KYBD	Keyboard connector
MICROPROCESSOR	Microprocessor connector
MONITOR	Video connector
MOUSE	Mouse connector
PANEL	Control panel connector
PARALLEL	Parallel port connector; sometimes referred to as LPT1
POWER_1	Main power input connector
POWER_2	3.3-volt (V) power input connector
RISER	Riser board connector
SERIALn	Serial port connectors
USB	USB connectors

Expansion Cards

The small-form-factor GX110 chassis can accommodate up to two half-length 32-bit PCI expansion cards. Figure 22 shows an example of a 32-bit PCI expansion card.

Figure 22. 32-Bit PCI Expansion Card Example

Removing an Expansion Card

CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."

To remove an expansion card, perform the following steps:

Remove the computer cover.

If necessary, disconnect any cables connected to the card.

Remove the expansion-card cage.

Remove the screw on the mounting bracket of the card you want to remove.

Grasp the card by its outside corners, and ease it out of its connector.

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. The brackets also keep dust and dirt out of your computer.

Replace the computer cover, and reconnect your computer and peripherals to their power sources and turn them on.

NOTE: After you remove and replace the cover, the chassis intrusion detector will cause the following message to be displayed at the next system start-up:

ALERT! Cover was previously removed.

To reset the chassis intrusion detector, enter System Setup during the system's POST. In the Chassis Intrusion option, press the left- or right-arrow key to select Reset, and then choose Enabled, Enabled-Silent, or Disabled (see your User's Guide for instructions).

See the online System User's Guide for detailed information on the chassis intrusion detector.

NOTE: If a setup password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector.

Figure 23. Expansion Card Installation

1	Expansion card
2	Card-edge connector
3	Riser board
4	Expansion-card connector
5	Expansion-card cage

CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."

CAUTION: Some network cards automatically start up the system when they are connected. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any expansion cards

To install an expansion card, perform the following steps:

Prepare the expansion card for installation, and remove the computer cover.

See the documentation that came with the expansion card for information on configuring the card, making internal connections, or otherwise customizing it for your system.
Remove the screw and remove the metal filler bracket that covers the card-slot opening for the expansion slot you intend to use (see Figure 24).

Save the screw to use when installing the expansion card later in this procedure.

Figure 24. Filler Bracket Removal

1	Filler bracket

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.

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 2.
Connect any cables that should be attached to the card.

See the documentation for the card for information about the card's cable connections.
Replace the computer cover, and reconnect your computer and peripherals to their power sources and turn them on.

NOTE: After you remove and replace the cover, the chassis intrusion detector will cause the following message to be displayed at the next system start-up:

ALERT! Cover was previously removed.

To reset the chassis intrusion detector, enter System Setup during the system's POST. In the Chassis Intrusion option, press the left- or right-arrow key to select Reset, and then choose Enabled, Enabled-Silent, or Disabled (see your User's Guide for instructions).

See the User's Guide for detailed information on the chassis intrusion detector.

NOTE: If a setup password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector.

DIMMs

Figure 25. DIMM Removal

1	Ejectors (2)

CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."

To remove a DIMM, perform the following steps:

Push outward on the two DIMM socket ejectors simultaneously until the DIMM is released from its socket.
Lift the DIMM away from the socket.

To install a DIMM, press the DIMM fully into the socket while closing the ejectors to lock the DIMM into the socket (see Figure 26).

Figure 26. DIMM Installation

1	Ejectors (2)
2	Notches (2)

Microprocessor/Heat Sink Assembly

Figure 27. Microprocessor/Heat Sink Assembly Removal

1	Fan
2	Guide bracket assembly
3	Guide bracket assembly latch
4	Heat sink

CAUTION: The microprocessor single edge contact (SEC) cartridge/heat sink assembly can get extremely hot. Be sure that the assembly has had sufficient time to cool before you touch it.

CAUTION: Use a wrist grounding strap as explained in "Precautionary Measures."

NOTE: Dell recommends that only a technically knowledgeable person perform this procedure.

To replace a microprocessor, perform the following steps:

Remove the computer cover.

Locate the microprocessor socket on the system board.

Unplug the fan power connector on the system board

Disconnect the fan from the system board.

Remove the screws securing the fan to the end of the heat sink assembly and remove the fan.

Gently pull out the guide-bracket assembly latch, grasp the existing microprocessor/heat sink assembly firmly, and pull straight up to remove it from the guide bracket assembly.

You must use up to 15 pounds of force to disengage the microprocessor package from the connector. Do not rock the package while removing it.

Attach the fan to the new microprocessor/heat sink assembly.

Slide the new microprocessor package into the guide bracket assembly, with the heat sink toward the front of the computer, and firmly seat the microprocessor/heat sink assembly.

You must use up to 25 pounds of force to seat the new microprocessor package. Do not rock the package while inserting it into the connector.

Reconnect the fan cable.

Replace the computer cover, and reconnect your computer and peripherals to their power sources and turn them on.

As the system boots, it detects the presence of the new microprocessor and automatically changes the system configuration information in System Setup.

NOTE: After you remove and replace the cover, the chassis intrusion detector will cause the following message to be displayed at the next system start-up

ALERT! Cover was previously removed.

Enter System Setup, and confirm that the top line in the system data area correctly identifies the installed microprocessor.
While in System Setup, reset the chassis intrusion detector in the Chassis Intrusion option by pressing the left- or right-arrow key to select Reset, and then choose Enabled, Enabled-Silent, or Disabled(see your User's Guide for instructions).
Run the Dell Diagnostics to verify that the new microprocessor is operating correctly.

System Battery

Figure 31. System Battery Removal

1	Battery
2	Battery 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:

If possible, enter System Setup and print the System Setup screens.

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.

When you replace the system battery, orient the new battery with the "+" facing up. Insert the battery into its socket and snap it into place.

System Board

Figure 32. System Board Removal

To remove the system board, perform the following steps:

Disconnect all cables from their connectors at the back of the computer.

Remove the drive shelf assembly.

Remove the expansion-card cage.

Remove the hard-disk drive/bracket.

Disconnect all cables from the system board.

Remove the screw that secures the system board to the bottom of the chassis (see Figure 32).

Slide the system board toward the front of the chassis until it stops.

Carefully lift the system board out of the chassis (be sure to lift evenly and not twist the system board).

To replace a system board, perform the following steps:

Remove the DIMMs and the microprocessor/heat sink assembly and install them on the replacement board.

Set the jumpers on the new system board so that they are identical to those on the old board, unless a microprocessor upgrade is being installed.

Push down near each slot to engage the grounding clip onto its corresponding tab.

Push evenly on both sides of the system board as you slide it into position (do not twist the system board).

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