• 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.
Procedure
Step 1. Remove the top cover. See “Remove the top cover” on page 106.
Step 2. Remove any parts and disconnect any cables that might impede your access to the CMOS battery.
Step 3. Locate the CMOS battery. See “System board” on page 20.
Step 4. Open the battery clip as shown and carefully take the CMOS battery out of the socket.
Attention:
• Failing to remove the CMOS battery properly might damage the socket on the system board.
Any damage to the socket might require replacing the system board.
• Do not tilt or push the CMOS battery by using excessive force.
Figure 7. CMOS battery removal
After you finish
1. Install a new one. See “Install the CMOS battery” on page 33.
2. Dispose the CMOS battery as local ordinances or regulations required.
Install the CMOS battery
Use this information to install the CMOS battery.
About this task
The following tips describe information that you must consider when installing the CMOS battery.
• Lenovo has designed this product with your safety in mind. The lithium battery must be handled correctly
to avoid possible danger. If you install the CMOS battery, you must adhere to the following instructions.
Note:
In the U.S., call 1-800-IBM-4333 for information about battery disposal.
• 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.
• To order replacement batteries, call 1-800-IBM-SERV within the U.S., and 1-800-465-7999 or 1-800-465-
6666 within Canada. Outside the U.S. and Canada, call your support center or business partner.
.
Hardware replacement procedures
33
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