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10. Install the screw to secure the card reader bracket to the chassis.
Figure 19. Installing the screw that secures the card reader
11. Pivot the optical drive bay upward and reconnect the card reader cable to one of the USB connectors
on the system board. See “Locating parts on the system board” on page 10
.
12. Reinstall the front bezel. See “Removing and reinstalling the front bezel” on page 15.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to “Completing the parts replacement” on page 52.
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 (conguration). 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 conguration information (including passwords) are lost. An
error message is displayed when you turn on the computer.
26 ThinkCentre User Guide