Lenovo Personal Computer 4263 User Manual download pdf (Page 45)

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 ThinkStation Safety

and Warranty Guide that came with your computer. To obtain a copy of the

ThinkStation Safety and Warranty Guide,goto:

http://www.lenovo.com/support

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

Note: Your computer supports two rear fan assemblies.

To replace the rear fan assembly, do the following:

1. Remove all media from the drives and turn off all attached devices and the

computer. Then, disconnect all power cords from electrical outlets and

disconnect all cables that are connected to the computer.

2. Remove the computer cover. See “Removing the computer cover” on page 13.

3. Remove the front bezel. See “Removing and reinstalling the front bezel” on

page 15.

4. Remove the PCI card holder for easier access to the rear fan assembly. See

“Removing and reinstalling the PCI card holder” on page 16.

5. Your computer supports two rear fan assemblies. Locate the rear fan assembly

you want to replace. See “Locating components” on page 10.

6. Disconnect the rear fan assembly cable from the appropriate rear fan

connector on the system board. See “Locating parts and connectors on the

system board” on page 11.

Chapter 2. Installing or replacing hardware 37

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Lenovo Personal Computer 4263 User Manual Page 45