Heat Sink And Fan Assembly - Lenovo ThinkStation P340 Hardware Maintenance Manual

Heat sink and fan assembly

Prerequisite
Before you start, read Chapter 1 "Important safety information" on page 1 and print the following
instructions.
The heat sink might be very hot. Before you open the computer cover, turn off the computer and wait several
minutes until the computer is cool.
For access, do the following:
1. Remove the following FRUs in order if any:
• "Computer cover" on page 53
• "Optical drive" on page 54
• "Front bezel" on page 56
• "Optical drive cage" on page 72
2. Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system
board.
Replacement procedure
Depending on the computer model, the heat sink and fan assembly might vary. To replace the heat sink and
fan assembly:
• Type-1:
1. 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.
1a , fully loosen screw 1b
1c , fully loosen screw 1d
, and then fully loosen screw
, and then fully loosen screw
.
Chapter 7 Hardware removal and installation
1a .
1c .
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