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10. Connect the system fan cable to the system fan connector on the system board. See “Locating parts on
the system board” on page 12.
11. Reinstall the heat sink. See “Replacing the heat sink” on page 55.
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 75
.
Replacing the internal speaker
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 internal speaker.
Note: The internal speaker is only available in some models.
To replace the internal speaker, 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 33.
3. Locate the internal speaker in the computer. See “Locating parts on the system board” on page 12.
4. Remove the hard disk drive bracket. See “Replacing the hard disk drive bracket” on page 60.
5. Disconnect the internal speaker cable from the system board. See “Locating parts on the system
board” on page 12.
72 ThinkCentre User Guide