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10. Secure the power supply assembly cables with the cable clips and ties in the
chassis.
What to do next:
v To work with another piece of hardware, go to the appropriate section.
v To complete the replacement, go to “Completing the parts replacement” on
page 40.
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 ThinkStation Safety
and Warranty Guide that came with your computer. To obtain a copy of the
ThinkStation Safety and Warranty Guide,goto:
http://www.lenovo.com/support
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 the computer cover. See “Removing the computer cover” on page 14.
2. Lay the computer on its side for easier access to the system board.
3. Locate the heat sink and fan assembly. See “Locating 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 “Locating parts on the system board” on
page 11.
Chapter 2. Installing or replacing hardware 25