Lenovo ThinkStation C20, Hardware Maintenance Manual

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Note: Your microprocessor socket and cover might look slightly different from the illustration.
4. Carefully press the socket cover straight down until it is secured into the socket.
5. Lower the microprocessor retainer and then lower the lever to secure the retainer. Make sure the
lever is securely locked into position.
Replacing the battery
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the
ThinkStation Safety and Warranty Guide that came with your computer. To obtain a copy
of the ThinkStation 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 serial-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.
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ThinkStation Hardware Maintenance Manual