NEC Express5800 series User Manual page 208

9-10 Upgrading Your Server
11.
Push the CPU against the socket lightly and bring the lever down to fix the CPU.
12.
Remove the paper protecting the cool sheet from the rear face of the heat sink. Take care
not to touch the cool sheet with your hand.
IMPORTANT:
the heat sink must not come into contact with anything (such as dirt) or
be scratched.
13.
Put the heat sink on the CPU and secure it with four screws.
IMPORTANT:
one of the fins is missing on one end. Install the heat sink correctly as
shown in the figure below so that there is no gap between adjacent heat
sinks.
Be careful, the cool sheet located on the rear face of
The heat sink has an asymmetrical shape. Note that