Lenovo 3231 Personal Computer User Manual


 
Figure 32. Replacing the rear fan assembly
7. Connect the rear fan assembly cable to the system fan connector on the system board.
8. Go to “Completing the FRU replacement” on page 103.
Replacing the front audio and USB 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 front audio and USB assembly.
To replace the front audio and USB assembly:
1. Remove the computer cover. See “Removing the computer cover” on page 73.
2. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 77.
3. Note the cable routing and disconnect the front audio and USB assembly cables from the system board.
See “Locating parts on the system board” on page 76
.
4. Remove the screw that secures the front audio and USB assembly to the chassis, and then remove the
front audio and USB assembly.
100 ThinkCentre Hardware Maintenance Manual