Backwall - HP dc7900 - Convertible Minitower PC Service & Reference Manual

CAUTION:
the heatsink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply
thermal grease to the top of the processor from the syringe supplied in the spares kit.
CAUTION:
with the rotation of the drive cage or power supply.

Backwall

1. If you have locked the Smart Cover Lock, use Computer Setup to unlock the lock
Smart Cover Lock on page
2. Prepare the computer for disassembly
3. Remove the access panel
4. Rotate the drive cage to its upright position.
5. Remove the power supply
6. If necessary, remove the SmartCover lock from the backwall of the chassis using the special
security wrench and disconnect its cable from the system board
Lock on page
7. Remove the system board
8. Remove the four screws that secure the backwall assembly to the chassis (1), slide the backwall
assembly toward the front of the chassis, and then lift it out of the chassis (2).
Figure 8-67
To replace the backwall, reverse the removal procedures.
172 Chapter 8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Before reinstalling the heatsink you must clean the top of the processor and the bottom of
When reconnecting the cables it is important that they be positioned so they do not interfere
64)
(Computer Access Panel on page
(Power Supply on page
119).
(System Board on page
Removing the backwall
(Preparation for Disassembly on page
125).
169).
171).
(Unlocking the
118).
(Unlocking the Smart Cover