Replacing The Secondary Hard Disk Drive - Lenovo ThinkCentre M73 10B0 Hardware Maintenance Manual

10. Install the screw that secures the optical drive box on the VESA mount bracket.
Figure 157. Installing the screw that secures the optical drive box
11. Connect the optical drive cable to a USB connector on the computer. See "Locating connectors on the
rear of your computer" on page 84.

Replacing the secondary hard disk drive

Attention: Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" on page 1.
This section provides instructions on how to replace the secondary hard disk drive.
Note: The secondary hard disk drive is installed in the optical drive box and is only available on some models.
To replace the secondary hard disk drive, 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 secondary hard disk drive cable from the USB connector on the computer.
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ThinkCentre M73 Hardware Maintenance Manual