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AVADirect Clear CMOS (Reset BIOS) Information – AVADirect


AVADirect Clear CMOS (Reset BIOS) Information

There’s a CMOS reminiscence onboard that’s powered externally from a battery positioned on the motherboard to avoid wasting system configuration information. If you wish to clear the system configuration, set the jumper to clear the CMOS reminiscence.
There are a pair strategies on resetting the CMOS. Most motherboards have the normal “Jumper”. As expertise improves, the CMOS reset course of has advanced into built-in buttons and eradicating the jumper in whole. Strategies on clearing the CMOS shall be described within the instances under.

– Resetting BIOS to default values (Clear CMOS) “Jumper”

1. Energy off the pc and unplug the ability wire.
2. Use a jumper cap (a small screw driver will do) to brief the CMOS pins
3. Maintain the jumper cap (screwdriver) in place for about 5-10 seconds
4. Take away the jumper cap (screwdriver) from the jumper pins
5. Plug the ability wire in and check out powering on the pc as you usually would


a. Most jumper pins may be positioned close to the CMOS battery. Or within the neighborhood of the highlighted space on the motherboard above.
b. Illustration of a 2-pin CMOS header.
c. Illustration of a 3-pin CMOS header and what it ought to seem like when the corresponding pins are jumped
Be aware: Most motherboards have already got a jumper on pins 1 & 2 and require that jumper to maneuver to pins 2 & 3 with the intention to be efficiently jumped.
d. Image of motherboard jumpers.

– Resetting the BIOS to default values (Clear CMOS) “Battery”

1. Energy off the pc and unplug the ability wire.
2. Find the CMOS Battery
3. Use a small flat headed screw driver to push the pin holding the battery in place, then carry the battery out of the socket.
4. Depart the battery out of the socket for 5-10 seconds.
5. Place the battery again into the socket
6. Plug in and energy in your laptop as you’ll usually

A picture of a typical CMOS battery and socket
CMOS batteries on newer fashions are related by a 2-pin cable

– Resetting the BIOS to default values (Clear CMOS) “BIOS button”

1. Energy off the pc and unplug the ability wire.
2. Find the “CMOS” button on the again of the board close to the I/O ports
3. Press and maintain the “CMOS” button for 5-10 seconds
4. Plug within the energy and energy on the pc as you’ll usually

A picture of a typical CMOS button

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