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CMOS battery replacement
Use this information to remove and install the CMOS battery.
• "Remove the CMOS battery" on page 160
• "Install the CMOS battery" on page 162
Remove the CMOS battery
Use this information to remove the CMOS battery.
About this task
Attention:
• Lenovo has designed this product with your safety in mind. The lithium CMOS battery must be handled
correctly to avoid possible danger. If you replace the CMOS battery, you must adhere to local ordinances
or regulations.
• If you replace the original lithium battery with a heavy-metal battery or a battery with heavy-metal
components, be aware of the following environmental consideration. Batteries and accumulators that
contain heavy metals must not be disposed of with normal domestic waste. They will be taken back free
of charge by the manufacturer, distributor, or representative, to be recycled or disposed of in a proper
manner.
• Power off the server and disconnect all power cords for this task.
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.
• Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-
sensitive components in their static-protective packages until installation, and handling these devices with
an electrostatic-discharge wrist strap or other grounding system.
A video for this task is available at:
• Youtube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-Bz2XIeLEfGcrLGm9TSY_yt
• Youku:
http://list.youku.com/albumlist/show/id_52339612.html
ThinkSystem SR665 Maintenance Manual
160
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