Asus Motherboard P7P55D - Manual (Page 28)

2-8 Chapter 2: Hardware information
Chapter 2
2.3.2 Installing the CPU heatsink and fan
The Intel ® LGA1156 processor requires a specially designed heatsink and fan assembly to
ensure optimum thermal condition and performance.
• When you buy a boxed Intel ® processor, the package includes the CPU fan and
heatsink assembly. If you buy a CPU separately, ensure that you use only
Intel ® -certified multi-directional heatsink and fan.
• Your Intel ® LGA1156 heatsink and fan assembly comes in a push-pin design and
requires no tool to install.
• Use an LGA1156-compatible CPU heatsink and fan assembly only. The LGA1156
socket is incompatible with the LGA775 and LGA1366 sockets in size and dimension.
Orient the heatsink and fan assembly such that the CPU fan cable is closest to the CPU fan
connector.
To install the CPU heatsink and fan:
1. Place the heatsink on top of the installed
CPU, making sure that the four fasteners
match the holes on the motherboard.
2. Push down two fasteners at a time in
a diagonal sequence to secure the
heatsink and fan assembly in place.
A
A
B
B
1
1
A B
B A
Ensure that you have installed the motherboard to the chassis before you install the CPU
fan and heatsink assembly.
If you purchased a separate CPU heatsink and fan assembly, ensure that the Thermal
Interface Material is properly applied to the CPU heatsink or CPU before you install the
heatsink and fan assembly.