Replacing The System Fan Assembly - Lenovo FM 300s Hardware Maintenance Manual

Replacing the system fan assembly

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
To replace the front audio and USB assembly, do the following:
1. Remove any media from the drives and turn off all connected 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 .
3. Remove the front bezel. See "Replacing the front bezel" on page 82.
4. Remove the optical drive. See "Replacing the optical drive" on page 83.
5. Remove the storage drive. See "Replacing the storage drive" on page 85.
6. Remove the card reader. See "Replacing the card reader" on page 86.
7. Remove the front audio and USB assembly. See "Replacing the front audio and USB assembly" on
page 88.
8. Locate the system fan assembly. See "Computer components" on page 31.
9. Note the cable routing and disconnect the system fan assembly cables from the system board. See
"Parts on the system board" on page 34.
1. The system fan assembly is attached to the chassis by four rubber mounts. Remove the system fan
assembly by cutting the rubber mounts and lifting the system fan assembly out of the chassis.
Note: The new system fan assembly comes with four new rubber mounts attached.
Figure 18. Removing the system fan assembly
1. Install the new system fan assembly by aligning the new rubber mounts that came with the new system
fan assembly with the corresponding holes in the chassis, and then push the rubber mounts through the
holes. Then, carefully pull on the tips of the rubber mounts from the bottom until the new system fan
assembly is secured in place.
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Chapter 9 Installing or replacing hardware
89