Asus PSCH-SR/SCSI - Manual (Page 27)

ASUS PSCH-SR motherboard 2-9
2.3.3 Installing the optional CPU heatsink and
thermal plate
CPU thermal plate
This motherboard requires a thermal plate for the CPU. Place the thermal
plate underneath the motherboard before you install the heatsink.
Refer to the picture below for the correct matching of the motherboard and
thermal plate holes.
The passive CPU heatsink and a thermal plate is purchased
separately. For optimum thermal solution, use the recommended CPU
heatsink and thermal plate.
To install the CPU heatsink:
1. Carefully place the heatsink on
top of the installed CPU.