HP Dc7700 HP Compaq dc7700 Business Desktop PC Service Reference Guide, 1st Ed - Page 187

HP Dc7700 - Compaq Business Desktop Manual

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Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis 8.19 System Board 1. Prepare the computer for disassembly (Section 8.1). 2. Remove the computer access panel (Section 8.3). 3. Remove the optical drive (Section 8.4). 4. Disconnect the three front I/O, fan, and speaker cables from the system board. 5. Remove the front panel assembly (Section 8.5). 6. Remove the memory modules (Section 8.10). 7. Remove the expansion card cage (Section 8.11). 8. Remove the hard drive (Section 8.14). 9. Remove the heatsink (Section 8.16). 10. Remove the power supply (Section 8.18). 11. Disconnect all cables connected to the system board, noting their location for reinstallation. 12. Remove the thumbscrew that secures the system board to the chassis 1. 13. 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. Ä CAUTION: Be very careful when removing or replacing the system board to prevent damaging it. To install the system board, reverse the removal procedure. ✎ When installing the system board make sure that the board is pressed firmly against the floor of the chassis to allow the keys to lock into the keyhole slots on the system board. Service Reference Guide, dc7700 433612-001 8-25

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Service Reference Guide, dc7700
433612-001
8–25
Removal and Replacement Procedures - Ultra-Slim Desktop (USDT) Chassis
8.19 System Board
1. Prepare the computer for disassembly (
Section 8.1
).
2. Remove the computer access panel (
Section 8.3
).
3. Remove the optical drive (
Section 8.4
).
4. Disconnect the three front I/O, fan, and speaker cables from the system board.
5. Remove the front panel assembly (
Section 8.5
).
6. Remove the memory modules (
Section 8.10
).
7. Remove the expansion card cage (
Section 8.11
).
8. Remove the hard drive (
Section 8.14
).
9. Remove the heatsink (
Section 8.16
).
10. Remove the power supply (
Section 8.18
).
11. Disconnect all cables connected to the system board, noting their location for reinstallation.
12. Remove the thumbscrew that secures the system board to the chassis
1
.
13. 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.
Ä
CAUTION:
Be very careful when removing or replacing the system board to prevent damaging it.
To install the system board, reverse the removal procedure.
✎
When installing the system board make sure that the board is pressed firmly against the floor of
the chassis to allow the keys to lock into the keyhole slots on the system board.