7. Install a new front audio and USB assembly into the bracket and install the two screws to secure the
front audio and USB assembly to the bracket.
8. Install the front audio and USB assembly bracket to the chassis and align the screw hole in the bracket
with the corresponding hole in the chassis.
9. Install the screw to secure the front audio and USB assembly bracket to the chassis.
10. Reconnect the front USB and front audio cables to the system board. See “Locating parts on the
system board” on page 77.
11. Reinstall the front bezel. See “Removing and reinstalling the front bezel” on page 122.
12. To complete the installation or replacement, go to “Completing the parts replacement” on page 160.
Replacing the system fan
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://support.lenovo.com
This section provides instructions on how to replace the system fan assembly.
To replace the system fan assembly, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Open the computer cover. See “Opening the computer cover” on page 121.
3. Remove the hard disk drive. See “Replacing the hard disk drive” on page 135.
4. Locate the system fan assembly. See “Locating components” on page 118.
5. Disconnect the system fan assembly cable from the system fan connector on the system board. See
“Locating parts on the system board” on page 77.
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ThinkCentre Hardware Maintenance Manual
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