• Avoid excessive force on the CMOS battery, as it might damage the socket on the system
board and result in system board replacement.
Figure 51. Removal of a CMOS battery
After this task is completed
• Install a replacement unit (see
“Install a CMOS battery (CR2032)” on page 75).
• Dispose of the CMOS battery as required by local ordinances or regulations.
Demo video
https://www.youtube.com/watch?v=ZhxvfROi9BU
Install a CMOS battery (CR2032)
Follow instructions in this section to install a CMOS battery (CR2032).
About this task
To avoid potential danger, make sure to read and follow the safety information.
• S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off
the electrical current supplied to the device. The device also might have more than one power cord.
To remove all electrical current from the device, ensure that all power cords are disconnected from
the power source.
• S004
CAUTION:
When replacing the lithium battery, use only Lenovo specified part number or an equivalent type
battery recommended by the manufacturer. If your system has a module containing a lithium
Chapter 5. Hardware replacement procedures 75
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