Did you upgrade your computer or change its components or change a setting in the BIOS which caused your system to stop booting. If so, then you might think of resetting your BIOS to the factory defaults.
BIOS can be reset by shorting motherboard jumper, which forces your computer to load with default BIOS settings.
Steps to change the battery
1. Switch OFF your computer.
2. Unplug the power cord from the computer power supply unit.
4. Now search for Jumper in the Motherboard which shows CMOS or “Reset CMOS” as shown in the image.
5. This CMOS Jumper will be a three pin jumper and its operation is tabulated.
|2,3||Drain CMOS settings|
6. Your BIOS Jumper should be in 1,2 position as that is the normal operation. Now change the Jumper to 2,3 position to drain the CMOS.
7. Switch ON your computer and check whether your BIOS settings are reset. If so, then switch OFF your computer and then replace the jumper to the original position.
Note: Sometimes the BIOS cannot be reset by shorting the motherboard jumper, due to some virus attack or malfunction settings. In that case, check Three Ways to reset your BIOS for other ways to reset your BIOS.