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Replacement procedure of 125-watt heat sink and fan assembly
1. Remove the four screws that secure the heat sink and fan assembly to the chassis. Then, follow the
following sequence to loosen the four screws that secure the heat sink and fan assembly to the system
board. Then, lift the heat sink and fan assembly off the system board.
• Partially loosen screw
• Partially loosen screw
Notes:
• Carefully loosen the four screws to avoid any possible damage to the system board. The four screws
cannot be removed from the heat sink and fan assembly.
• You might have to gently twist the heat sink and fan assembly to free it from the microprocessor.
• Do not touch the thermal grease while handling the heat sink and fan assembly.
• In case you need to remove the chassis beam as well, ensure that this 125-watt heat sink and fan
assembly is removed before you remove the chassis beam.
74
M90t Gen 3 Hardware Maintenance Manual
2a
, fully loosen screw
2b
2c
, fully loosen screw
2d
, and then fully loosen screw
, and then fully loosen screw
2a
.
2c
.
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