Asus RS161-E5/PA2 - Manual (Page 24)

Chapter 2: Hardware setup 2-6
2. Attach the other heatsink if you
install two CPUs on this system.
2.2.2 Installing the CPU heatsink and airduct
To install the CPU heatsink:
1. Carefully place the heatsink on top
of the installed CPU and secure the
heatsink to the motherboard with a
Philips (cross) screwdriver.
The CPU fits in only one correct orientation. DO NOT force the CPU into the
socket to prevent bending the connectors on the socket and damaging the CPU!
6. Close the load plate (A), then push
the load lever (B) until it snaps into
the retention tab.
A
B