NEC N8100-1078F User Manual page 247

Installation
Install a CPU in the following procedure.
1.
See the section "Preparing for Installation and Removal" described earlier to prepare.
2.
Remove the components as follows:
Side cover
Processor air duct
3.
Locate the CPU socket which you are going to install CPU.
4.
Raise the locking lever on the socket.
IMPORTANT:
approx. 120 degrees.
5.
Aligning the pins of the CPU with the socket, insert the CPU slowly and gently into the
socket.
IMPORTANT:
corners among four differ from others to prevent an incorrect insertion.
Confirm the pin mark and pin layout on the socket, and insert the CPU
correctly.
Pin mark
Open the lever until it stops. The bar can be opened to
Be aware of CPU direction. Pin layouts on two
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