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6. Insert the two tabs 2 of the new front fan assembly into the corresponding holes in the chassis, and
press the other two tabs 1 through the holes until the front fan assembly is secured in place.
Figure29. Installing the front fan assembly
7. Connect the front fan assembly cable to the power fan connector on the system board.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to “Completing the parts replacement” on page 38.
Replacing the rear 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 rear fan assembly.
To replace the rear fan assembly, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See “Removing the computer cover” on page 14.
32 ThinkCentre User Guide