How do I clear the CMOS?
Clearing the CMOS memory will cause you to lose all customized settings in the BIOS. Make sure that you only do this if it is absolutely necessary. Before beginning, make a note of all BIOS settings on your system.
To clear the CMOS:
- Turn off all peripheral devices connected to the computer. Disconnect the computer’s power cord from the AC power source (wall outlet or power adapter).
- Remove the computer cover.
- Locate the battery on the board.
- With a medium flat-bladed screwdriver, gently pry the battery free from its connector. Note the orientation of the “+” and “-” on the battery.
- Leave the battery out for 10 - 15 minutes, for the CMOS to lose the settings.
- Replace the battery in the connector, orienting the “+” and “-” correctly.
- Replace the computer cover.
- Turn the system back on.
You will need to reset the date and time in the BIOS Setup after clearing the CMOS.
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