NEC N8100-1410F User Manual page 315

8.
Remove the four screws from the CPU dummy cover, then remove the CPU dummy
cover.
9.
Locate the CPU socket which you are going to install CPU.
10.
Remove the protective socket cover from the load plate.
IMPORTANT:
replace the socket cover if the processor is removed from the socket.
Do not discard the protective socket cover. Always
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