SUPER MICRO Computer SUPERSERVER 6012L-6 - Manual (Page 37)

Chapter 5: Advanced Motherboard Setup
5-3
4. Apply the proper amount of thermal compound to the CPU die and place
the heatsink on top of the CPU. Make sure the heatsink sits completely
flat on the CPU. If not completely flat, the space between the two will
degrade the heat dissipation function of the heatsink, which may cause
the processor to overheat.
5. Secure the heatsink by locking the retention clips into their proper
position. When correctly installed, the retention clips should *click* into
place and the three black tabs on the CPU retention pieces should
protrude fully through the corresponding holes on the retention clips. See
Figure 5-2 for a diagram of the heatsink installation procedure.
6. If installing two processors, repeat these steps to install the second
processor in the CPU #2 slot.
Figure 5-1. PGA Socket: Empty and with Processor Installed
Warning!
Make sure you lift the lever completely when
installing the CPU. If the lever is only partly raised, damage
to the socket or CPU may result.
!