Lenovo M5800 Lenovo M5800 Hardware Maintenance Manual - Page 95

Replacing the system fan

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6. Remove the screw that secures the front audio and USB assembly bracket to the chassis to remove the bracket from the chassis. Figure 27. Removing the front audio and USB assembly 7. Install the new front audio and USB assembly into the chassis and align the screw hole in the bracket with the corresponding hole in the chassis. 8. Install the screw to secure the new front audio and USB assembly to the chassis. 9. Reconnect the front audio and USB assembly cables to the front audio connector and the front USB connector on the system board. See "Locating parts on the system board" on page 65. 10. To complete the installation or replacement, go to "Completing the parts replacement" on page 102. Replacing the system fan Attention: Do not open your computer or attempt any repair before reading and understanding Chapter 1 "Safety information" on page 1. This section provides instructions on how to replace the system fan. To replace the system fan, 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 69. 3. Locate the system fan. See "Locating major FRUs" on page 62. 4. Disconnect the system fan cable from the system fan connector on the system board. See "Locating parts on the system board" on page 65. Chapter 8. Replacing FRUs 89

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6. Remove the screw that secures the front audio and USB assembly bracket to the chassis to remove
the bracket from the chassis.
Figure 27. Removing the front audio and USB assembly
7. Install the new front audio and USB assembly into the chassis and align the screw hole in the bracket
with the corresponding hole in the chassis.
8. Install the screw to secure the new front audio and USB assembly to the chassis.
9. Reconnect the front audio and USB assembly cables to the front audio connector and the front USB
connector on the system board. See “Locating parts on the system board” on page 65.
10. To complete the installation or replacement, go to “Completing the parts replacement” on page 102.
Replacing the system fan
Attention:
Do not open your computer or attempt any repair before reading and understanding Chapter 1 “Safety information”
on page 1.
This section provides instructions on how to replace the system fan.
To replace the system fan, 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 69.
3. Locate the system fan. See “Locating major FRUs” on page 62.
4. Disconnect the system fan cable from the system fan connector on the system board. See “Locating
parts on the system board” on page 65.
Chapter 8
.
Replacing FRUs
89