To remove and re-seat the CMOS battery: If you've assembled a computer before, you may have noticed something on the motherboard that is relevant to this topic: A jumper labeled "CLEAR CMOS" or ...
You can easily reset CMOS using the BIOS Menu. We are going to change all the BIOS settings to default in order to reset CMOS. Restart your computer and boot into BIOS. When your computer starts ...