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6. Remove the two screws that secure the front audio and USB assembly to its bracket. Then remove the
failing front audio and USB assembly from the bracket.
7. Install a new front audio and USB assembly into the bracket and install the two screws to secure the
front audio and USB assembly to the bracket.
8. Install the front audio and USB assembly bracket to the chassis and align the screw hole in the bracket
with the corresponding hole in the chassis.
9. Install the screw to secure the front audio and USB assembly bracket to the chassis.
10. Reconnect the front USB and front audio cables to the system board. See “Locating parts on the
system board” on page 12.
11. Reinstall the front bezel. See “Removing and reinstalling the front bezel” on page 28.
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 64.
Replacing the system fan
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
on page v
.
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. Open the computer cover. See “Opening the computer cover” on page 28.
3. Remove the hard disk drive. See “Replacing the hard disk drive” on page 40.
4. Locate the system fan. See “Locating components” on page 11.
5. Disconnect the system fan cable from the system fan connector on the system board. See “Locating
parts on the system board” on page 12.
Chapter 5. Installing or replacing hardware 57