The BIOS password is stored in CMOS memory that is maintained while the PC is powered off by a small battery, which is attached to the motherboard. If you remove this battery, all CMOS information (including the BIOS password) will be lost. You will need to re-enter the correct CMOS setup information to use the machine. The machines owner or user will most likely be alarmed when it is discovered that the BIOS password has been deleted.
Can youplease check any battery is there on motherboard
round one-silver colour
remove it and reinsert
your password will be deleted
You can clear the password by clearing the CMOS. Your manual will show you how to clear the CMOS, If you don't have a manual, go to the gigabyte support website, enter your motherboard model, and you can download the manual
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