Heat Sink And Fan Assembly - Lenovo ThinkStation P320 Hardware Maintenance Manual

• To complete the installation or replacement, go to "Completing the parts replacement" on page 139.

Heat sink and fan assembly

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
CAUTION:
Avoid contact with hot components inside the computer. During operation, some components
become hot enough to burn the skin. Before you open the computer cover, turn off the computer,
disconnect power, and wait approximately 10 minutes for the components to cool.
To replace the heat sink and fan assembly, do the following:
1. Prepare your computer. See "Preparing your computer and removing the computer cover" on page 69.
2. Lay the computer on its side for easier access to the system board.
3. Locate the heat sink and fan assembly. See "Parts on the system board" on page 11.
4. Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system
board. See "Parts on the system board" on page 11.
5. Pivot the two plastic retaining clips that secure the heat sink fan duct outward. Then remove the heat
sink fan duct from the failing heat sink and fan assembly.
Figure 77. Removing the heat sink fan duct
6. Follow this sequence to remove the four screws that secure the heat sink and fan assembly to the
system board:
a. Partially remove screw
b. Partially remove screw
Note: Carefully remove 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.
1 , then fully remove screw
3 , then fully remove screw
2 , and then fully remove screw
4 , and then fully remove screw
.
Chapter 8 Hardware removal and installation
1 .
3 .
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