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10. Reconnect all the power supply assembly cables to the drives and the system
11. Go to "Completing the parts replacement" on page 36.
Replacing 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.
This section provides instructions on how to replace the heat sink and fan
assembly.
To replace the heat sink and fan assembly:
1. Open the computer cover. See "Opening the computer cover" on page 12.
2. Pivot the drive bay assembly upward to gain access to the heat sink and fan
Figure 27. Accessing the heat sink and fan assembly
30
User Guide
8. Install the new power supply assembly into the chassis so that the screw holes
in the new power supply assembly align with those in the chassis.
9. Install and tighten the four screws at the rear of the chassis to secure the
power supply assembly.
Note: Use only the screws provided by Lenovo.
board.
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.
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