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4. If you are installing a new microprocessor, go to step 5 on page 98; otherwise,
continue:
a. Verify that you have selected the correct microprocessor to be replaced.
The LED next to the failing microprocessor will be on.
Attention:
Before attempting to remove the heat sink from the
microprocessor, note that the heat-conducting grease between the heat
sink and the microprocessor might have formed a strong bond. Do not
force the components apart; doing so can damage the microprocessor
pins. Fully loosen one heat sink captive mounting screw first; then, pull up
gently on the heat sink to break the adhesion bond. This helps to break the
heat bond and allows one corner of the heat sink to be lifted off of the
microprocessor; then, you can loosen the other captive mounting screw
and remove the heat sink.
Captive screws
VRM 3
Microprocessor
locking lever
b. Fully loosen one of the two captive mounting screws on the heat sink;
then, pull up gently on the heat sink to break the adhesion bond. This will
help to break the heat bond between the heat sink and the processor;
then, loosen the other screw and remove the heat sink.
c. Rotate the locking lever on the microprocessor socket from its closed and
locked position until it stops or clicks in the fully open position
(approximately 135° angle), as shown. Then, see the documentation
provided with the microprocessor option for complete installation
instructions.
Attention:
You must ensure that the locking lever on the microprocessor
socket is in the fully open position before you insert the microprocessor in
the socket. Failure to do so might result in permanent damage to the
microprocessor, microprocessor socket, and system board.
Heat sink 3
Microprocessor 3
97
Installing options
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