Oracle Exadata Storage Server X7-2 EF Service Manual page 133

Install a Processor
e. Place the processor-heatsink module on the socket on the motherboard.
The socket bolster plate has alignment pins that go into holes on the processor-heatsink
module to help center the module during installation.
f. Ensure that the processor-heatsink module lies evenly on the bolster plate
and that the captive screws align with the threaded socket posts [1].
g. Using a 12.0 in-lbs (inch-pounds) torque driver (part number 7352217) with a
Torx T30 bit, tighten the processor-heatsink module to the socket. First, fully
tighten captive nuts 1 and 2. Then fully tighten nuts 3 and 4 [2]
Servicing Processors 133