Replacing The Front Fan Assembly - Lenovo ThinkCentre A70 7099 Hardware Maintenance Manual

Figure 73. Removing the front audio and USB assembly
10. Install the screw to secure the new front audio and USB assembly in place.
11. Pivot the drive bay assembly upward. Then, connect the new front audio and
12. Properly route the cables of the new front audio and USB assembly, and then
13. To complete the replacement, go to "Completing the parts replacement" on

Replacing the front fan assembly

This section provides instructions on how to replace the front fan assembly.
To replace the front fan assembly, do the following:
154
Hardware Maintenance Manual
9. Position the new front audio and USB assembly to the chassis so that the
screw hole in the new front audio and USB assembly is aligned with the
corresponding hole in the chassis.
USB assembly cables to the front USB connector and the front audio connector
on the system board. See "Locating parts on the system board" on page 120.
secure the cables with the cable clip on the chassis. See Figure 76 on page 157.
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.