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6. Slide the new optical drive into the drive bay until it snaps into position.
7. Connect the signal cable and the power cable to the optical drive.
8. To reinstall the front bezel, align the plastic tabs on the bottom of the bezel
with the corresponding holes in the chassis, and then pivot the bezel inward
until it snaps into position.
9. Go to “Completing the parts replacement” on page 30.
Replacing the battery
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
Your computer has a special type of memory that maintains the date, time, and
settings for built-in features, such as parallel-port assignments (configuration). A
battery keeps this information active when you turn off the computer.
The battery normally requires no charging or maintenance throughout its life;
however, no battery lasts forever. If the battery fails, the date, time, and
configuration information (including passwords) are lost. An error message is
displayed when you turn on the computer.
Refer to the “Lithium battery notice” in the ThinkCentre Safety and Warranty Guide
for information about replacing and disposing of the battery.
To replace the battery:
1. Open the computer cover. See “Opening the computer cover” on page 12.
2. Locate the battery. See “Locating parts on the system board” on page 10.
Figure 13. Installing the optical drive
18 User Guide