Replacing The Cpu Heatsink - HP Xw8400 - Workstation - 4 GB RAM Technical Reference Manual

Replacing the CPU heatsink

1. Disconnect power from the system (
panel (Access panel on page
on page
2. Use alcohol and a soft cloth to clean all of the thermal interface material residue from the CPU
heatsink and processor.
CAUTION:
3. Place the CPU heatsink on top of the processor, and align the four mounting screws with the
holes (1) in the system board.
NOTE:
the keyholes in the chassis, and that the system board connectors engage correctly with the rear
I/O panel, and push back on the system board while engaging the CPU heatsink screws with the
chassis standoffs. You only need to push back when trying to engage the first screw.
Figure 4-64
ENWW
57) and the CPU heatsink
93).
Allow the alcohol on the processor and CPU heatsink to dry completely.
If both CPU heatsinks were removed, ensure that all system board standoffs engage with
Replacing the CPU heatsink on the system board
Pre-disassembly procedures on page
(Removing the CPU heatsink
Removing and replacing components
50). Remove the access
95