NEC POWERMATE 8100 RELEASE NOTES, Руководство пользователя

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Installing Options 5-27
Securing the processor in the retention mechanism
A – Locking Tabs D – System Board
B – CPU/Heat sink E – Bottom Bar
C – Retention Mechanism F – Top Bar
6. The processor speed must be set correctly in BIOS. For detailed
instructions on changing the processor speed, start with step 2 of
“Changing the Processor Speed” in Chapter 3.
7. Reconnect cables that were disconnected to gain access to the
processor socket.
8.
Replace the system unit cover (see “System Unit Cover”).
System Board
The system board conforms to the NLX standard so it is very easy to
remove and replace. No cables connect to the system board. All power
and signal connections from the system board are made through the riser
board connector.
The following sections describe how to remove and replace the system
board.