If you have a mother board manual, (if you dont have one, get one)The other option is pulling the onboard battery out for about 30 minutes, this will cause the bios to go back to the default settings!If you have a manual, you will notice on the board diagram that there are three pins. On some boards its called the CMOS RAM clear sector!Pins 1 and 2 are normal mode and pins 2 and 3 will Clear the CMOS (BIOS)!Most boards are shipped with with pins 2 and 3 jumpered.
Power down your PC.Locate a rocker-style switch at the back of your PC (if applicable), and switch it from the on position (I) to the off position (O). If there is no switch disconnect the power cord from power supply.Find the 3-pin jumper near the power supply on the motherboard, typically labeled "clear cmos" or "reset bios".Remove the jumper from the default position (typically connecting the 1st and 2nd pins).Replace the jumper to connect the 2nd and 3rd pins.Push the power button on the front of your PC once.Wait a minute.Return the jumper to its default position, connecting the 1st and 2nd pins.Move the rocker-style switch at the back of your PC (if applicable), to the on (I) position.Power on your PC with its front power button.
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