Replacing The Heat Sink And Fan Assembly - Lenovo ThinkCentre 3231 Hardware Maintenance Manual

Replacing the heat sink and fan assembly

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 opening the computer
cover.
To replace the heat sink and fan assembly:
1. Open the computer cover. See "Opening the computer cover" on page 128.
2. Pivot the drive bay assembly upward to gain access to the heat sink and fan
3. Disconnect the heat sink and fan assembly cable from the system board. See
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Hardware Maintenance Manual
Attention
Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" in the ThinkCentre Safety and Warranty Guide that came with
your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:
http://www.lenovo.com/support
assembly. See "Accessing the system board components and drives" on page
129.
"Locating parts on the system board" on page 131.