Recently a friend got an IBM Thinkpad 600E laptop. On boot up he would get an error 00161 and 00163 and would freeze. On researching the error code I found that this had to to with the
CMOS battery being dead. I located a battery from
batteries.com. They have an excellent battery search so you can get the correct one for your application . The battery I needed was part no.
CR2025-WR. Ok now that I received it it's time to change the battery.
1. Turn off the notebook and unplug it. Also I took out the battery pack on the bottom.
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2. The CMOS battery is located in the same panel as the memory cards. In this case the panel is located under the CD drive. You'll need a small phillips screwdriver to undo the panel.
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3. Once you've removed the panel the battery is located close to the front of the notebook under a tab and you'll see the battery tucked underneath with a black and red wire plugged the board. Unplug the wires from the board. Then press down on the tab where the battery is and pull out the old one.
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4. Connect up the new battery and plug it back in and replace the panel in reverse order.
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Your done. Once you've booted back up you'll be prompted to reset the time and date. You should be good to go after this.
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