IBM 7979B1U, User Manual

Page: 80 / 144

Note: For simplicity, certain components are not shown in this illustration.
Microprocessor
Heat-sink
filler
Heat sink
Microprocessor socket
dust cover
Attention:
v
A startup (boot) microprocessor must always be installed in microprocessor
connector 1 on the system board.
v To ensure correct server operation when you install an additional microprocessor,
use microprocessors that have the same cache size and type, front-side bus
frequency, and clock speed. Microprocessor internal and external clock
frequencies must be identical.
To install an additional microprocessor, complete the following steps:
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 28.
2. Turn off the server and disconnect all power cords and external cables (see
“Turning off the server” on page 13).
Attention: In a dc power environment, only trained service personnel other
than IBM service technicians are authorized to connect or disconnect power to
the dc power supply. See the documentation that comes with each dc power
supply.
3. Remove the server cover (see “Removing the cover” on page 31).
4. Remove the microprocessor air baffle (see “Removing the microprocessor air
baffle” on page 33).
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System x3650 Type 7979: User’s Guide