Jumper short connection clears the BIOS password

Discharge the motherboard battery, clear the BIOS password, if the battery is welded to the motherboard, you can not use the discharge method to clear the BIOS password. However, you can use the jumper short connection to the CMOS discharge.

　　The specific operation of jumper short connection method is as follows:

In the vicinity of the motherboard battery, there will be a jumper switch, jumper switch generally has four feet, some 1, 22 feet have a jump connector, unplug the connection to 2, 4 feet can discharge. Some all feet have no jump connector, can be 2 feet and charging capacitor short connect can discharge.

CMOS jumper settings are relatively simple, generally in the vicinity of the motherboard battery, there are only two ways: normal and clear COM. When set to 1-2 short connection, the normal state, set 2-3 short connection, you can clear the CMOS settings, can be used to clear the CMOS password, power-on password and so on.