How do I clear the CMOS to reset my BIOS settings?

Turn off the computer and unplug the power cord, then press the Clear CMOS button located on the rear I/O panel. After pressing the button, plug the power cord back in, turn on the computer, and hold the Delete key during boot to re-enter data in BIOS Setup. If this does not work, remove the onboard button cell battery, press the Clear CMOS button again, then reinstall the battery.