Lenovo ThinkCentre M76 Hardware Maintenance Manual for ThinkCentre M76 - Page 141

Replacing the heat sink and fan assembly

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9. Slide the new optical drive into the drive bay until it snaps into position. Figure 74. Installing a new optical drive 10. Connect the signal cable and the power cable to the rear of the optical drive. 11. To complete the installation or replacement, go to "Completing the parts replacement" on page 157. 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 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 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. Open the computer cover. See "Opening the computer cover" on page 119. Chapter 9. Replacing FRUs (Machine Types: 3120, 3122, 3126, and 3128.) 137

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9. Slide the new optical drive into the drive bay until it snaps into position.
Figure 74. Installing a new optical drive
10. Connect the signal cable and the power cable to the rear of the optical drive.
11. To complete the installation or replacement, go to “Completing the parts replacement” on page 157.
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
ThinkCentre Safety and Warranty Guide
that came with your computer. To obtain a copy of the
ThinkCentre
Safety and Warranty Guide
, go to:
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. Open the computer cover. See “Opening the computer cover” on page 119.
Chapter 9
.
Replacing FRUs (Machine Types: 3120, 3122, 3126, and 3128.)
137