Lenovo 4215, 4220, 4222, 4219, 4221 manual Replacing the front fan assembly, 34User Guide

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 ThinkStation Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkStation Safety and Warranty Guide, go to: http://www.lenovo.com/support

This section provides instructions on how to replace the front fan assembly.

Note: Not all computers have the front fan assembly.

To replace the front fan assembly, do the following:

1.Remove the computer cover. See “Removing the computer cover” on page 14.

2.Remove the front bezel. See “Removing and reinstalling the front bezel” on page 15.

3.Disconnect the front fan assembly cable from the power fan connector on the system board. See “Locating parts on the system board” on page 11.

Note: If your computer has a secondary hard disk drive installed, remove the secondary hard disk drive to get easier access to the power fan connector on the system board. See “Replacing the secondary hard disk drive” on page 29.

34User Guide