NEC N8100-1220F User Manual page 442

9-68 Upgrading Your Server
6.
Unlock the processor board and open the ejector.
7.
Firmly hold the processor board and pull it out from the chassis.
NOTE:
The processor board is very heavy (max. 7 kg). Pay attention not to
drop it.
Also be careful that the connector of the processor board does not hit
the chassis. As shown in the figure below, pull the processor board
halfway, slightly lift the inner side of the board and then pull out the
board.
8.
Put the processor board on a dry, clean, and static-free place.
Installation
Install the processor board in reverse order of the removal steps.
Notes when removing the processor board