Removing the System Board
1. If applicable, remove the bezel.
2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3. If the system is a tower system, place it on a work surface.
4. Open the system.
5. Slide the drive tray to the maintenance position. See Figure1-1.
a. Using a #2 Phillips screwdriver, loosen the captive screw that secures the drive tray release lever to the chassis.
b. Rotate the drive tray release lever toward the front of the system.
c. While grasping both sides of the front panel, slide the drive tray forward as far as possible.
6. Disconnect any cables attached to expansion cards in the expansion card cage.
7. Remove the expansion-card cage. See "Removing the Expansion-Card Cage" in the Installation and Troubleshooting Guide.
8. Remove the processor fans and center fan bracket. See "Removing a Processor Fan" and "Removing the Center Fan Bracket" in the Installation and
Troubleshooting Guide.
9. Remove the memory module fans and back fan bracket. See "Removing a Memory Module Fan" and "Removing and Replacing the Back Fan Bracket" in
the Installation and Troubleshooting Guide.
10. Remove the memory cooling shroud. See Figure 6-16 in the Installation and Troubleshooting Guide.
11. Remove the memory modules. See "System Memory" in the Installation and Troubleshooting Guide.
12. Unlock the power supplies from the system and slide them back 5 cm (2 inches). See "Power Supplies" in the Installation and Troubleshooting Guide.
13. Remove the processor(s). See "Processor" in the Installation and Troubleshooting Guide.
14. If applicable, remove the RAID key.
See Figure 7-7 in "Activating the Integrated RAID Controller" in the Installation and Troubleshooting Guide.
15. If applicable, remove the RAC card:
a. Deflect the four blue plastic standoffs away from the edges of the card, then lift the front edge of the card to disconnect the card from the system
board.
b. Lift the card from the system.
16. If applicable, disconnect the parallel port cable from the system board.
17. Remove the center fan assembly cradle.
Lift the release tab, then slide the cradle toward the edge of the system board and lift the cradle out of the system. See Figure1-5.
Figure 1-5. Removing the Center Fan Assembly Cradle
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