NEC EXP805 User Manual page 73

Chapter 2 Preparations
9. Confirm the location of the processor, remove the processor socket protective cover.
10. Install the processor heatsink assembly:
① Locate the Pin 1 indicator on the processor carrier and the socket.
② Align the processor heatsink assembly with the heatsink alignment pins and gently lower it down until
it sits evenly on the socket. The heatsink alignment pins are keyed. The processor heatsink assembly
will only install one way.
Using a T-30 hexalobular screwdriver, fully tighten each heatsink nut until it no longer turns.
③
Note Keep the removed protective cover for future use.
Note Be sure to tighten each heatsink nut fully in the order indicated. Otherwise, boot
failure or intermittent shutdowns might occur.
Express5800/R120h-2M (2nd-Gen) User's Guide
1. Installing Internal Optional Devices
73