Rear Chassis Fan - HP Compaq dc7800 Reference Manual

12. Lift the rear of the system board until it clears the chassis (3), and then remove the system board
from the chassis (4).
To install the system board, reverse the removal procedure.
NOTE: When replacing the system board, you must also change the chassis serial number in the
BIOS.

Rear Chassis Fan

1. Prepare the computer for disassembly
2. Remove the computer access panel
3. Remove the optical drive
4. Remove the hard drive
5. Remove the hard drive cage
6. Remove the heatsink
7. Disconnect the fan cable from the system board.
8. Remove the system board
9. Remove the four screws that secure the fan to the chassis (1).
188 Chapter 9 Removal and Replacement Procedures Ultra-Slim Desktop (USDT) Chassis
(Preparation for Disassembly on page
(Computer Access Panel on page
(Removing the Optical Drive on page
(Hard Drive on page
(Hard Drive Cage on page
(Heatsink on page 184).
(System Board on page
170).
174).
178).
187).
159).
163).