Magical Debug Erase CMOS password

Open the chassis, locate the battery on the motherboard, disconnect it from the motherboard (that is, remove the battery), and the CMOS will lose all information stored internally because of power loss. Then put the battery on, close the chassis on, because the CMOS is a blank, it will no longer require you to enter the password, this time into the BIOS Setup program, select the main Menu "load BIOS default" (Load BIOS defaults) or "Load SETUP default" ( Load Setup defaults, the former in the safest way to start the computer, the latter can make your computer play a higher performance of the genuine XP system download.

Magical Debug Erase CMOS password

If you forget your password to enter the CMOS Setup program, you can use the software removal method in addition to using the jumper short removal method on the motherboard, and here's how to clear the CMOS password in DOS.

An editor in DOS, which is DEBUG, is a very useful tool to start by typing a command at a DOS command prompt: Debug, and then go to the debug editing interface.

After you enter a command in the command state, restart the computer to clear the CMOS password, and five command lines to clear the CMOS password are given below.

Method One

-O 70 16

-O 71 16

-Q

Method Two

-O 70 11

-O-FF

-Q

Method Three

-O 70 10

-O 71 10

-Q

Method Four

-O 70 23

-O 71 34

-Q

Method Five

-O 70 10

-O-FF

-Q

Method Six

-O 70 90

-O 71 91

-Q