Replacing The Heat Sink And Fan Assembly - Lenovo 10B0 Maintenance Manual

• To complete the installation or replacement, go to "Completing the parts replacement" on page 186.

Replacing the heat sink and fan assembly

Attention:
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
on page 1.
This section provides instructions on how to replace the heat sink and fan assembly.
CAUTION:
The heat sink and fan assembly might be very hot. Turn off the computer and wait three to five
minutes to let the computer cool before removing the computer cover.
To replace the heat sink and fan assembly, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 136.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 136
4. Locate the heat sink and fan assembly. See "Locating major FRUs and CRUs" on page 78
5. Pivot the drive bay assembly upward. Then, pivot the two plastic retaining clips outward to remove
the heat sink fan duct from the failing heat sink and fan assembly.
Figure 102. Removing the heat sink fan duct
6. Disconnect the cable of the heat sink and fan assembly from the system board.
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ThinkCentre M73 Hardware Maintenance Manual