HP ProLiant ML10 User Manual page 31

Secure the 24 pin, 4 pin, system board, P3, and the P4 power cables with a cable tie.
19.
Clean the old thermal grease from the heatsink and the top of the processor with the alcohol swab.
20.
Allow the alcohol to evaporate before continuing.
Apply all the grease to the top of the processor in the following pattern to ensure even distribution.
21.
Install the heatsink:
22.
Position the heatsink on the processor backplate
a.
Tighten the four corner screws completely to secure the heatsink in place.
b.
Hardware options installation 31