Replacing The Heat Sink And Fan Assembly - Lenovo ThinkCentre Edge 91 Hardware Maintenance Manual

10. Lower and position the heat sink fan duct on the top of the heat sink and fan assembly until it snaps
into position.
Figure 64. Installing the heat sink fan duct
11. Secure the power supply assembly cables with the cable clips and ties in the chassis.
12. To complete the installation or replacement, go to "Completing the parts replacement" on page 141.

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"
in the ThinkCentre User Guide. To obtain a copy of the ThinkCentre User Guide, go to:
http://www.lenovo.com/ThinkCentreUserGuides
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. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See "Removing the computer cover" on page 112.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 113.
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ThinkCentre Hardware Maintenance Manual