HP ProLiant BL460c Maintenance And Service Manual page 34

Remove the heatsink.
8.
To replace the component:
Clean the old thermal grease from the processor with the alcohol swab. Allow the alcohol to
1.
evaporate before continuing.
Remove the thermal interface protective cover from the heatsink.
2.
CAUTION: Heatsink retaining screws should be tightened in diagonally opposite pairs (in an "X" pattern).
Removal and replacement procedures 34