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7. To install the new hard disk drive into the plastic bracket, flex the bracket and
align pin 1, pin 2, pin 3, and pin 4 on the bracket with the holes in
the hard disk drive. Do not touch the circuit board 5 on the bottom of the
hard disk drive.
8. Connect the signal cable and the power cable to the rear of the new hard disk
drive.
9. Slide the new hard disk drive into the hard disk drive bay until it snaps into
position.
10. Reconnect the power cable to the optical drive.
11. Go to “Completing the parts replacement” on page 30.
Replacing the optical drive
Attention
Do not open your computer or attempt any repair before reading and understanding the
“Important safety information” in the ThinkCentre Safety and Warranty Guide that came with
your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the optical drive.
To replace the optical drive:
1. Open the computer cover. See “Opening the computer cover” on page 12.
Figure 9. Installing the hard disk drive into the bracket
16 User Guide