Manuals

Removing the Computer Cover

Figure 1. Computer Cover Removal

To remove the computer cover, perform the following steps:

1. Remove the padlock from the padlock ring on the back panel of the computer, if one is installed.
2. Facing the left side of the computer, press the release button at the bottom-left corner of the front bezel.
3. Lift the bottom of the cover, allowing it to pivot up toward you.
4. Disengage the tabs that secure the cover to the top of the chassis, and lift the cover away.

To replace the cover, insert the tabs on the cover into the recessed slot on the chassis and lower the cover until it fits flush with the side of the computer. 

Figure 2. Reinstalling the Cover

Front Bezel

Figure 3. Front Bezel Removal

To remove the front bezel, perform the following steps:

1. Press the tab release marked with the icon.
2. While still pressing the tab release, tilt the bezel away from the chassis.
3. Disengage the two retaining hooks at the bottom of the bezel, and pull the bezel away from the chassis.

To replace the bezel, align the retaining hooks with the slots in the chassis and press the top of the bezel toward the chassis until the tabs on top of the chassis snap the bezel into place.

Power and Reset Buttons

Figure 4. Power and Reset Button Removal

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

Front-Panel Inserts

Figure 5.  5.25-Inch Front-Panel Insert Removal

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 bezel, use your thumbs to press inward on the insert until it snaps free of the bezel.

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.

Control Panel

Figure 6. Control Panel Removal

To remove the control panel, perform the following steps:

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 7. Drive Locations

Removing a 5.25-Inch Drive From a Drive Bay

NOTE: For easier access inside the chassis, you may rotate the power supply out of the way temporarily. See Figure 12, Power Supply Removal.

1. Remove the computer cover as instructed in Removing the Computer Cover.
2. Remove the front bezel according to the instructions in Front Bezel.
3. Open the drive cage door.  Disconnect the DC power cable and interface cable from each drive.
4. Grasp the handle of the drive bay door on the front of the chassis, and pull out and down until the arms on the drive cage door (see Figure 9, Removing the Hard-Disk Drive Cage) disengage from the tabs on the bracket. This action pulls the cage out of the drive bay about 1 to 3 inches.

5. Remove the cage from the drive bay.
6. Remove the four screws that hold the drive in the cage.
7. Remove the drive by sliding it out of the cage.

CAUTION: To prevent damage to the drive cage, drive bay, or drive bay door when reinstalling the hard-disk drive cage, push the drive cage into the drive bay until the tabs snap into place before you close the drive bay door.  Fold the drive bay door handle down before attempting to replace the bezel.

Figure 10. Removing a Hard-Disk From the Drive Cage

System Power Supply

Figure 11. Power Supply Removal

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

1. Disconnect the AC power cable from the back of the power supply.
2. Free the system power supply from the securing tab labeled "RELEASE —>" and rotate it upward until it locks. 
3. Disconnect the DC power cables from the system board and the drives.  Note the routing of the DC power cables underneath the tabs in the 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.
4. Remove the screw above the AC power receptacle. 
5. Lift up on the power supply cradle tab to release the power supply from the cradle and slide the power supply toward the front of the computer approximately 1 inch.
6. Lower the power supply down and away from the computer. 

Microprocessor Fan

1. Rotate the power supply up until it locks (see Figure 11, Power Supply Removal).
2. Disconnect the fan power cable from the microprocessor fan connector.
3. Gently pull the plastic lock, and push down on the fan to disengage the four latching tabs holding the fan to the back of the chassis.
4. Pull the fan forward to remove it.

System Board Components

Figure 13. System Board

Expansion Cards

There are seven expansion-card connectors on the system board (see Figure 13, System Board). Expansion-card connectors PCI1 through PCI6 support 32-bit PCI expansion cards; expansion-card connector ISA6 can accommodate an 8- or 16-bit ISA expansion card.  The PCI1 slot is limited to a half-length card.

NOTES: Connector ISA6 shares expansion-card slot space with connector PCI6. Therefore, only one card of either type can be installed in this slot. PCI4 has an in-line connector to support a DRAC card (SVR_MGT connector on the system board).

Figure 14. Removing an Expansion Card

Perform the following steps to remove an expansion card:

1. If necessary, disconnect any cables connected to the card.
2. Unscrew the mounting bracket of the card you want to remove.
3. Grasp the card by its outside corners, and ease it out of its connector.
4. If you are removing the card permanently, install a metal filler bracket over the empty card-slot opening.
5. Replace the computer cover, and reconnect your computer and peripherals to their power sources and turn them on.
6. To reset the chassis intrusion detector, enter the System Setup program and reset Chassis Intrusion to Not Detected.

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DIMM Removal/Installation

To remove a DIMM, perform the following steps:

1. Unlatch and rotate the power supply up until it locks (see Figure 11, Power Supply Removal).
2. Push outward on the DIMM socket securing clips until the DIMM is released from its socket.
3. Lift the DIMM away from the socket.

Figure 15. DIMM Removal

To replace a DIMM, press the DIMM fully into the socket while closing the securing clips to lock the DIMM into the socket (see Figure 16).

Figure 16. DIMM Installation

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Microprocessor SEC Cartridge/Heat Sink Assembly

Figure 17. Microprocessor SEC Cartridge/Heat Sink Removal

To remove a microprocessor SEC cartridge/heat sink assembly, perform the following steps:

WARNING: 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.

1. Unscrew and remove the two thumbscrews that secure the heat sink to the system board.
2. Press the microprocessor SEC cartridge release latches inward until they snap into position.
3. Grasp the microprocessor SEC cartridge firmly, and pull straight up on the cartridge to remove it from the guide bracket assembly (see Figure 17).
4. You must use up to 15 lb of force to disengage the microprocessor SEC cartridge from its connector.

To install a microprocessor SEC cartridge/heat sink assembly, first verify that the cartridge release latches are pulled out. Then slide the cartridge into the guide bracket assembly, with the heat sink toward the bottom of the chassis, and firmly seat the assembly. You must use up to 25 lb of force to seat the cartridge in its connector. Install the two thumbscrews that secure the heat sink to the system board.

Verify the microprocessor is acknowledged by the system by running the System Setup program.  If you are upgrading a microprocessor, you may need to update your system software (for example, the BIOS).

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Terminator Card

Figure 18. Terminator Card Removal

If you are installing a secondary microprocessor SEC cartridge/heat sink assembly, you need to remove the terminator card from the SLOT1_SEC connector on the system board by performing the following steps:

1. Press the microprocessor SEC cartridge release latches inward until they snap into position (see Figure 18).
2. Pull the terminator card straight out to remove it from the connector.

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System Battery

Figure 19. System Battery Removal

WARNING: 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. If possible, enter the System Setup program and print the System Setup screens.
2. Rotate the power supply up until it locks (see Figure 12, Power Supply Removal).
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.

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.

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System Board Removal

Figure 20. System Board Removal

To remove the system board, perform the following steps:

1. Place the computer on its side on a flat surface.
2. Disconnect all cables from their connectors at the back of the computer.
3. Unlatch and rotate the power supply until it locks (see Figure 12, Power Supply Removal)
4. Disconnect all cables from the system board.
5. Remove the microprocessor fan (see Microprocessor Fan).
6. Remove the screw that secures the system board to the bottom of the chassis.
7. Slide the system board toward the front of the chassis until it stops.
8. Carefully lift the system board out of the chassis (be sure to lift evenly and not twist the system board).

If you are replacing a system board, remove the DIMMs, the primary microprocessor SEC cartridge/heat sink assembly, and the terminator card or secondary microprocessor assembly, and install them on the replacement board.

When you reinstall the system board, before you slide the system board back to lock it in position, 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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