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Lenovo ThinkCentre M720s 10ST User Manual And Hardware Maintenance Manual page 68

Thinkcentre m720s series

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Note: Your computer has a special type of memory that maintains the date, time, and settings for built-in
features, such as parallel connector assignments (configurations). A coin-cell battery keeps this information
active when you turn off the computer.
The coin-cell battery normally requires no charging or maintenance throughout its life; however, no coin-cell
battery lasts forever. If the coin-cell battery fails, the date, time, and configuration information (including
passwords) are lost. An error message is displayed when you turn on the computer.
To replace the coin-cell battery,
1. Remove the computer cover. See "Removing the computer cover" on page 24.
2. Remove the front bezel. See "Replacing the front bezel" on page 25.
3. Replace the coin-cell battery.
Figure 121. Opening the drive bay
Figure 122. Pressing the metallic tab using a driver
Figure 123. Removing the coin-cell battery
64
ThinkCentre M720s User Guide and Hardware Maintenance Manual

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