IBM eServer xSeries 445 Type 8870 Option Installation Manual page 62

Figure 48. Microprocessor installation
50
xSeries 445 Type 8870: Option Installation Guide
a. Verify that you have selected the correct microprocessor to be replaced.
The LED beside the failing microprocessor will be lit.
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. If the heat sink does not separate from the microprocessor easily,
loosen one heat sink captive mounting screw first. This 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. Using a screwdriver, loosen the two captive mounting screws on the heat
sink, alternating between screws until they release from the SMP board;
then, 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 a 135° angle), as shown.
Heat sink 3
Microprocessor 3