How to reset CMOS or BIOS settings?

How to reset CMOS or BIOS settings?

The computer stores low-level settings such as the system time and hardware settings in its CMOS. Sometimes it may be necessary to reset the CMOS or BIOS especially if experiencing a hardware compatibility issue or something similar.

There are three main ways to reset CMOS or BIOS settings.

1. Via the BIOS menu

  • Restart the computer.
  • Press the key to enter the BIOS, typically Del, F1, F2, or F10.
  • Wait for the BIOS screen to appear.
  • Find the factory reset option.
  • Select the option or press the button to load your factory defaults.
  • Save changes

2. Use the CLEAR CMOS Motherboard Jumper

  • Shut down the computer and unplug the power cord
  • Open the case and access the motherboard
  • Find the CMOS jumper, which is a three-pin jumper on your motherboard
  • Remove the jumper and move it over to another set of pins
  • Press and hold the power button for 10 to 15 seconds to dispel any electricity remaining in the capacitors (without plugging in the computer)
  • Remove the jumper and move it back to the original position
  • Start the computer

3. Reset the CMOS Battery

  • Shut down the computer and unplug the power cord
  • Open the case and access the motherboard
  • Find the CMOS battery, which is a flat round disk shaped battery
  • Carefully remove it
  • Press and hold the power button for 10 to 15 seconds to dispel any electricity remaining in the capacitors (without plugging in the computer)
  • Wait five minutes before resetting the battery or replacing it if necessary
  • Start the computer, enter your BIOS and reconfigure all of the settings, including the time, date, and boot order.

Add new comment

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.