Replacing The Front Fan Assembly - Lenovo M91p 4480 User Manual

11. Install the hard disk drive cage into the chassis until it snaps into position underneath the metal tab.
Make sure that the hard disk drive cage release button is secured in the chassis.
Figure 42. Installing the secondary hard disk drive
12. Connect the signal cable and the power cable to the new hard disk drive.
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 66.

Replacing the front 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 front fan assembly.
Note: The front fan assembly is only available in some models.
To replace the front 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 32.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 33.
4. Disconnect the front fan assembly cable from the power fan connector on the system board. See
"Locating parts on the system board" on page 12.
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ThinkCentre User Guide