HP ProLiant SL250s Gen8 Maintenance And Service Manual page 52

Loosen one pair of diagonally opposite screws halfway, and then loosen the other pair of screws.
a.
Completely loosen all screws in the same sequence.
b.
Remove the heatsink from the processor backplate.
c.
Open each of the processor locking levers in the order indicated, and then open the processor retaining
13.
bracket.
Removal and replacement procedures 52