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3. Hold the thicker end of the rear WiFi antennas and unscrew the WiFi antennas from the rear of the
computer.
Figure 63. Removing the rear WiFi antennas
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 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. Remove the computer cover. See “Removing the computer cover” on page 33.
3. Locate the system fan in the computer. See “Locating components” on page 11.
4. Remove the heat sink for easier access to the system fan. See “Replacing the heat sink” on page 55.
5. Disconnect the system fan cable from the system board. See “Locating parts on the system board”
on page 12.
Chapter 5. Installing or replacing hardware 69