Heat-Sink-And-Fan Assembly - Lenovo ThinkStation P348 User Manual

Heat-sink-and-fan assembly

Prerequisite
Before you start, read Generic Safety and Compliance Notices, 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 these parts in order, if any:
• "Computer cover" on page 28
• "Optical drive" on page 29
• "Front bezel" on page 31
• "Optical drive cage" on page 43
2. Disconnect the heat-sink-and-fan assembly cable from the microprocessor fan connector on the system
board.
Replacement procedure
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.
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P348 User Guide
1a , fully loosen screw 1b
1c , fully loosen screw 1d
, and then fully loosen screw
, and then fully loosen screw
1a .
1c .