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

11. 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 11. Then,
locate an available five-wire power connector and connect it to the rear of the new optical drive.
Figure 31. Connecting a SATA optical drive
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 70.

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 v.
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 all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 32.
.
Chapter 5 Installing or replacing hardware
47