CMOS passwords must be used to remove

CMOS passwords are generally set by the user, or the system will have passwords by default, but some users want to remove them, because more or less will bring a little trouble. The method is some way of using commands. After entering the command in the command state, restart the computer to clear the CMOS password. Here are five command lines to clear the CMOS password.

Method 1

-o 70 16

-o 71 16

-q

Method 2

-o 70 11

-o 71 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 71 ff

-q

Method six

-o 70 90

-o 71 91

-q

Open the case, find the battery on the motherboard, disconnect it from the motherboard (that is, remove the battery), at this time CMOS All information stored internally will be lost due to power outage. Then connect the battery and close the chassis. Since the CMOS is blank, it will no longer require you to enter the password. Enter the BIOS setup program and select "LOAD BIOS DEFAULT" in the main menu. Save the value) or "LOAD SETUP DEFAULT" (the default value of the loader program), the former to start the computer in the safest way, the latter can make your computer play a higher performance.

Magic DEBUG clear CMOS password

If you forget the password to enter the CMOS setup program, in addition to the method of using jumper short-circuit clear on the motherboard, you can also use the software to clear the method. Here's how to clear the CMOS password under DOS.

An editor is provided in DOS, which is DEBUG. This is a very useful tool. The startup method is to enter the command at the DOS command prompt: DEBUG, then you can enter the DEBUG editing interface. .

In fact, there are other ways to unlock the password, but these two methods are relatively simple. You can use the command line method or you can use the following method. You can choose Let's go.