NEC Express5800/120Rg-1 User Manual page 270

9-40 Upgrading Your Server
14.
Put the heat sink on CPU and fix the heat sink with four screws.
NOTE:
15.
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.
(3)
(1)
Be aware of direction of heat sink (see figure below).
Processor 1
(2)
(4)
Processor 2