HP ProLiant DL380 G7 Maintenance And Service Manual page 60

To replace the heatsink:
Clean the old thermal grease from the processor with the alcohol swab. Allow the alcohol to evaporate
1.
before continuing.
Apply all the grease to the top of the processor in the following pattern to ensure even distribution.
2.
Install the heatsink.
3.
Removal and replacement procedures 60