Replacing The Optical Drive - Lenovo ThinkCentre A70 7099 Hardware Maintenance Manual

11. Position the heat sink fan duct on the top of the heat sink and fan assembly so
Figure 59. Installing the heat sink fan duct
12. To complete the replacement, go to "Completing the parts replacement" on

Replacing the optical drive

This section provides instructions on how to replace the optical drive.
To replace the optical drive, do the following:
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Hardware Maintenance Manual
that the four screw holes in the heat sink fan duct are aligned with the
corresponding holes in the heat sink and fan assembly. Then, install the four
screws to secure the heat sink fan duct in place.
page 157.
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
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
122.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on
page 123.