HP BL685c - ProLiant - 4 GB RAM User Manual page 31

Remove the thermal interface protective cover from the heatsink.
11.
IMPORTANT:
If the heatsink will be installed on processor 1 or 2, expose the adhesive and apply the air baffles to
12.
the side of the heatsink that will face the center of the server.
Align the holes in the heatsink with the guide pins on the processor cage:
13.
Do not install the air baffles on heatsinks for processors 3 and 4.
Hardware options installation 31