NEC Express5800/R120b-1 User Manual page 400

9-44 Upgrading Your Server
12.
Put the heat sink on CPU and fix the heat sink with four screws.
Make sure that the screw aligns with the screw hole. If not, the screw may damage the
motherboard.
NOTE:
13.
Make sure that the heat sink is level.
NOTES:
If the heat sink is not level, remove it, and then install it again. The following
probably causes the heat sink not to be level:
– The CPU is not positioned correctly.
– All screws are not completely tightened.
Do not move the secured heat sink.
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<1>
Be aware of direction of heat sink (see figure below).
Rear of the server
Front of the server
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