System Board - HP Business Desktop d500 Series Service & Reference Manual

8.19 System Board

1. Prepare the computer for disassembly (Section 8.1).
2. Remove the computer top access panel (Section 8.3.1).
3. Remove the memory modules (Section 8.5).
4. Remove the hard drive (Section 8.8.1).
5. Remove the system fan (Section 8.9).
6. Remove the front chassis panel (Section 8.10).
7. Disconnect the power switch cable from the system board (Section 8.12).
8. Disconnect the front I/O cable from the system board (Section 8.11).
9. Remove the heat sink and processor (Section 8.13).
10. Remove the power supply (Section 8.12).
11. Remove the drive cage assembly (Section 8.16).
12. Disconnect all cables connected to the system board, noting their location for reinstallation.
13. Remove the two screws that hold the heatsink clip retaining bracket to the chassis 1.
14. Slide the system board towards the front of the chassis 2, making sure that all keyhole
retainers are clear before lifting the system board from the chassis 3.
CAUTION: Be very careful when removing or replacing the system board to prevent damaging it.
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To install the system board, reverse the removal procedure.
Service Reference Guide
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis
336492-003 8–29