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12. Reinstall the heat sink and fan assembly with the fan duct as shown. See “Replacing the heat sink and
fan assembly” on page 47.
Figure 42. Reinstalling the heat sink and fan assembly with the fan duct
13. Reconnect all cables that were disconnected from the system board.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the replacement, go to “Completing the parts replacement” on page 65.
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. Open the computer cover. See “Opening the computer cover” on page 30.
58 ThinkCentre User Guide