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

CAUTION:
X) to evenly seat the heatsink on the processor. This is especially important as the pins on the
socket are very fragile and any damage to them may require replacing the system board.

Processor

1. Prepare the computer for disassembly
2. Remove the computer access panel
3. Remove the heatsink
4. Rotate the processor locking lever to its full open position (1).
5. Raise and rotate the microprocessor retainer to its fully open position (2).
6. Carefully lift the processor from the socket (3).
CAUTION:
handling them could cause irreparable damage. Once pins are damaged it may be necessary to
replace the system board.
The heatsink must be installed within 24 hours of installing the processor to prevent damage to the
processor's solder connections.
Figure 9-34
To install a new processor:
1. Place the processor in its socket and close the retainer.
2. Secure the locking lever.
If reusing the existing heatsink, go to step 3.
If using a new heatsink, go to step 5.
3. If reusing the existing heatsink, clean bottom of the heatsink and apply the thermal grease provided
in the spares kit to the top of the processor.
Heatsink retaining screws should be tightened in diagonally opposite pairs (as in an
(Heatsink on page
Do NOT handle the pins in the processor socket. These pins are very fragile and
Removing the processor
(Preparation for Disassembly on page
(Computer Access Panel on page
204).
178).
183).
Processor 205