Dfi CA331-NR User Manual download pdf (Page 23)

Hardware Installation

Installing the Fan and Heat Sink

TheCPU must be kept cool byusing aCPU fan with heat sink.Without sufcient

air circulation across the CPU and heat sink, the CPU will overheat damaging both

the CPU and system board.

Note:

• Useonlycertiedfanandheatsink.

• Yourfanandheatsink package usuallycontainsthefanandheatsink

assembly, and an installation guide. If the installation procedure in the

installation guide differs from the one in this section, please follow the

installation guide in the package.

1. On the solder side of the

board, match the retention

module base to the mount-

ing holes around the CPU

socket.

Retention module base

2. Apply a thin layer of thermal paste on top of the CPU. Do not spread the

paste all over the surface. When you later place the heat sink on top, the

compound will disperse evenly.

3. While holding the retention module base in position (step 1), place the fan

/ heat sink assembly on top of the CPU. The 4 screws around the heat sink

must match the screw holes of the retention module base. We strongly rec-

ommend using this type of fan / heat sink assembly because it provides ad-

equate cooling to the components of the system board.

 TurneachPhillipsheadscrewhalfwaydownrsttoinitiallystabilizetheheat

sinkontotheboard,thennallytighteneachscrew.

Important:

Donotturnthe rst screwallthewaydownfollowedby the nextandsoon.

This is to avoid imbalance which might cause cracks or fractures to the CPU

and/or heat sink assembly.

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Dfi CA331-NR User Manual Page 23