1. Remove any media from the drives and turn off all connected devices and the computer.
2. Disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
3. Replace the VESA mount bracket.
Figure 22. Removing the VESA mount bracket
Figure 23. Installing the VESA mount bracket
Replacing the external optical drive
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer.
2. Disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
3. Replace the external optical drive.
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M920x User Guide and Hardware Maintenance Manual