Archive for the ‘Hardware’ Category
How to Reset BIOS Password?
The most recommended method in resetting a BIOS password largely depends on the kind of BIOS that a computer has. Normally known BIOS are AMI, IBM, Award and Phoenix. These are just the common BIOS; there are also other BIOS that exist.
Some BIOS requires a password before the system will boot while other need a password before the BIOS setup can be accessed. There are three general solutions to reset a BIOS password:
- Employing a Backdoor BIOS Password- a backdoor password was implemented by some manufacturers that functions, regardless of the BIOS password that is set by the user. The purpose of this backdoor password is for maintenance and testing. This backdoor BIOS password had been changed by the manufacturer regularly.
- Using software to reset the BIOS password- all system needs to store the BIOS password information. If the machine can be accessed after it had been booted successfully, you can view the BIOS password. The most important thing is that you must determine the memory address and the format where the BIOS password had been stored. Otherwise, install a program that will determine this needed information. Also, you can write a program that performs the reading of BIOS password that is stored in the CMOS memory on the PC. Write on the address of the byte of the CMOs memory that you want to read in port 0×370 and read the contents of port 0×371.
- Use hardware to reset BIOS password- if the machine cannot be accessed after booting to power up, still, there exists the possibility to recover the BIOS password. This BIOS password is kept in CMOS memory that is preserved in the PC and is supplied by a small battery that is attached to the motherboard. If this battery will be removed, all necessary information in the CMOS which includes the BIOS password will be lost. Re entering the correct CMOS setup information is needed to use the machine. On other motherboards, this battery is directly soldered on the motherboard to make it difficult to remove. For this case, there is another alternative. Locate in the motherboard documentation for a jumper in the motherboard that will clear the BIOS password. Moreover, this jumper can be located near the battery. As the last resort, if you can’t locate the jumper, you can short both terminals where the battery is connected to the motherboard.
In summary, the BIOS password can be reset in any system. Some of these systems are difficult, while others are easy. All BIOS password can be reset with enough time, effort and money.