NEC EXPRESS5800/120Ef Service Manual page 50

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Removal of Motherboard
a. Turn of the power then pull the AC cable out.
b. Remove a side cover.
c. Extract the heat sink, CPU, memory board(s), PCI board(s), etc.
d. CPU Reinforce bracket is in the reverse side of the motherboard.
The motherboard is made to slide in the direction of the arrow, and can then be removed.
CPU Reinforce Bracket
<Cautions>
After motherboard exchange, in case you attach a heat sink, please use the new cool sheet
appended to motherboard maintenance parts.
Moreover, do not shave the old cool sheet of the heat sink with a wooden spatula etc..
Refer to the cool sheet attachment procedure to the below-mentioned heat sink.
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