Replacing The Heat Sink And Fan Assembly - Lenovo ThinkCentre M72e Hardware Maintenance Manual

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6. Connect one end of the signal cable to the rear of the new optical drive and the other end to an available
SATA connector on the system board. See "Locating parts on the system board" on page 73. Then,
locate an available five-wire power connector and connect it to the rear of the new optical drive.
Figure 25. Connecting a SATA optical drive
7. To complete the installation or replacement, go to "Completing the parts replacement" on page 117.

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. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See "Removing the computer cover" on page 84.
3. Lay the computer on its side for easier access to the system board.
4. Locate the heat sink and fan assembly. See "Locating parts on the system board" on page 73.
5. 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 73.
.
Chapter 9
Replacing FRUs (machine types: 0896, 0958, 1112, 2116, 3498, 3593, 3595, 3597,
3617, 3634, 3655, 3662, 3665, and 3675)
95

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