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Attention:
v A startup (boot) microprocessor must always be installed in microprocessor
v To ensure correct server operation when you install an additional microprocessor,
v Do not remove the first microprocessor from the system board to install the
The following illustrations show how to install the second microprocessor on the
system board. If you install a second microprocessor in the server, you must install
one additional fan.
Note: For simplicity, certain components are not shown in this illustration.
To install an additional microprocessor, complete the following steps:
40
IBM System x3550 Type 7978: User's Guide
Note: Removing the heat sink from the microprocessor destroys the even
distribution of the thermal grease and requires replacing the thermal
grease.
socket 1 on the system board.
use microprocessors that have the same cache size and type, and the same
clock speed. Microprocessor internal and external clock frequencies must be
identical.
second microprocessor.
1. Read the safety information that begins on page v and "Installation guidelines"
on page 23.
2. Turn off the server and peripheral devices and disconnect the power cords and
all external cables, if necessary (see "Turning off the server" on page 14).
Remove the server cover.
Attention:
When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For details about handling these devices,
see "Handling static-sensitive devices" on page 25.
3. Locate microprocessor socket 2 on the system board.
4. Remove the microprocessor dust cover from the surface of the microprocessor
socket.
Microprocessor
release lever
Microprocessor
bracket frame
a. Press down and out on the release lever on the microprocessor socket. Lift
up the release lever until it stops in the fully open position (approximately
135° angle) and the top edge of the release lever has moved away from
the microprocessor socket.
b. Lift the hinged microprocessor bracket frame into an open position.
Remove the microprocessor dust cover from the bracket frame. Store the
dust cover in a safe place.
Microprocessor
dust cover
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