Lenovo ThinkCentre M800 Hardware Maintenance Manual page 139

To replace the front Wi-Fi antenna, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 88.
3. Remove the front bezel. See "Replacing the front bezel" on page 88.
4. Remove the optical drive. See "Replacing the optical drive" on page 104.
5. Locate the front Wi-Fi antenna. See "Computer components" on page 31.
6. Press the retaining clip
same time.
Figure 86. Pivoting the drive bay assembly upward
7. Disconnect the front Wi-Fi antenna cable from the Wi-Fi card.
8. Remove the front Wi-Fi antenna and pull out the antenna cable from the front of the computer.
Figure 87. Removing the front Wi-Fi antenna
1
in the direction as shown and pivot the drive bay assembly upward at the
.
Chapter 9 Installing or replacing hardware
131