Asus P9D-C/4L - Manual (Page 34)

2-14 Chapter 2: Hardware information
2.3.4 Installing the CPU heatsink in rack
The Intel ® 1150 processor requires a specially designed heatsink to ensure optimum thermal
condition and performance.
1. Peel off the sticker on the heatsink metal
plate and affix the plate to the back of
the motherboard, matching the standoffs
to the heatsink screw holes.
2. Use a Phillips screwdriver to tighten
the four heatsink screws using the
recommended sequence below.
1. Ensure that the heatsink is not skewed or tilted, otherwise the CPU will overheat.
2. Do not overtighten the screws. Doing so can damage the CPU.
A
C
B
D
A C
D B
• Ensure that you use qualified heatsink assembly only.
• Ensure that you have applied the thermal interface material to the top of the CPU
before installing the heatsink and fan.