Replacing The I/O Box - Lenovo ThinkCentre M700 Hardware Maintenance Manual

10. Install the screw to secure the external optical drive box on the VESA mount bracket.
Figure 25. Installing the external optical drive box screw
11. Connect the external optical drive adapter to the USB connectors on the external optical drive and the
computer. See "Rear view" on page 29.

Replacing the I/O box

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
Note: A 90-watt ac power adapter is required to ensure that the I/O box operates properly. A 90-watt ac
power adapter is shipped with your computer or can be ordered separately. You are not recommended to
use the I/O box that is offered with a ThinkCentre M53, M73, M83, or M93/p computer.
To replace the I/O box, 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. Disconnect the I/O box cable from the USB connectors on the computer.
.
Chapter 9 Installing or replacing hardware
99