Asus Z7S WS - Manual (Page 34)

2-12 Chapter 2: Hardware information
The Intel ® Xeon™ processors require an Intel certified heatsink and fan assembly
to ensure optimum thermal condition and performance.
When you buy a boxed Intel CPU, the package includes the heatsink, fan,
retention brackets, screws, thermal grease, installation manual, and other items
that are necessary for CPU installation.
2.3.2 Installing the CPU heatsink and fan
• Make sure that you have applied the thermal grease to the top of the CPU
before installing the heatsink and fan.
• Refer to the installation manual that came with the CPU package for details
on heatsink/fan assembly and installation.
CPU heatsink (top view) CPU heatsink (bottom view)
Heatsink screw
To install the CPU heatsink and fan:
1. Place the heatsink on top of the
installed CPU, making sure that the
four screws on the heatsink align
with the nuts on the support plate.