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Good evening,
Lost password - Resetting the BIOS
If you have forgotten or lost the BIOS password, requested at startup of the computer, this page provides, among other things, the method to remove the password prompt at the very start of the PC (do not confuse with the session password which may be displayed after the Windows logo).
To start, know that the startup password is contained in non-volatile memory, meaning it retains its data even when the PC is turned off. This chip, located on the motherboard, is commonly called the BIOS. There are two ways to reset the BIOS:
Hardware reset
Software reset
Hardware reset
The goal of the maneuver is to reset the BIOS so that it loses any trace of potential passwords or to restore it to working condition in case of a crash. This is done by moving a jumper on the motherboard. The biggest challenge is finding this jumper.
Warning: This procedure also resets other BIOS settings. If you have made changes, you will need to set them up again.
Step 1: Open your computer case after completely turning it off and unplugging its power cable. Touch the metal chassis of the case to discharge any static electricity.
Step 2: Consult your motherboard documentation to locate the position of the jumper that resets the BIOS. If you have no documentation, look for one of the following inscriptions on your motherboard: CLR BIOS, CLEAR BIOS, CLR CMOS, CLEAR CMOS, RESET BIOS, or RESET CMOS. It is generally located near the motherboard's battery. Note the name of the jumper associated with the inscription. In our example, it is the jumper JP4.
Step 3: Find the reset jumper on your motherboard. It is generally also located near the battery.
If the jumper is on a 3-pin connector, place it straddling the middle pin and the pin that was not initially covered (moving from pin1-pin2 to pin2-pin3, or vice versa). Wait a second and then return the jumper to its original position (pin1-pin2).
If the jumper is on a 2-pin connector and is only straddling one pin, place it on both, wait a second, then replace it in its original position.
Step 4: Plug the power cable back into your case and start your PC: the password has disappeared.
Software reset
If the password is only requested at the setup, it is possible, with certain motherboards, to recover it without performing all the above manipulations.
Use the software CMOSPWD (freeware):
https://www.cgsecurity.org/wiki/CmosPwd
This program works with the following BIOS:
ACER/IBM BIOS
AMI BIOS
AMI WinBIOS 2.5
Award 4.5x/4.6x/6.0
Compaq (1992)
Compaq (New version)
IBM (PS/2, Activa, Thinkpad)
Packard Bell
Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107
Phoenix 4 release 6 (User)
Gateway Solo - Phoenix 4.0 release 6
Toshiba
Zenith AMI
Other Tips in the BIOS category
Modify boot devices
Common BIOS commands
FDD CONTROLLER FAILURE
KB/INTERFACE ERROR
BIOS ROM CHECKSUM ERROR-SYSTEM HALTED
CMOS BATTERY FAILED
CMOS CHECKSUM FAILURE
Update (flash) the BIOS
CMOS Battery Low / CMOS Wrong Memory Size
CMOS CHECKSUM ERROR - DEFAULT LOADED
Lost password - Resetting the BIOS
Accessing the BIOS setup
Lost password - Resetting the BIOS
If you have forgotten or lost the BIOS password, requested at startup of the computer, this page provides, among other things, the method to remove the password prompt at the very start of the PC (do not confuse with the session password which may be displayed after the Windows logo).
To start, know that the startup password is contained in non-volatile memory, meaning it retains its data even when the PC is turned off. This chip, located on the motherboard, is commonly called the BIOS. There are two ways to reset the BIOS:
Hardware reset
Software reset
Hardware reset
The goal of the maneuver is to reset the BIOS so that it loses any trace of potential passwords or to restore it to working condition in case of a crash. This is done by moving a jumper on the motherboard. The biggest challenge is finding this jumper.
Warning: This procedure also resets other BIOS settings. If you have made changes, you will need to set them up again.
Step 1: Open your computer case after completely turning it off and unplugging its power cable. Touch the metal chassis of the case to discharge any static electricity.
Step 2: Consult your motherboard documentation to locate the position of the jumper that resets the BIOS. If you have no documentation, look for one of the following inscriptions on your motherboard: CLR BIOS, CLEAR BIOS, CLR CMOS, CLEAR CMOS, RESET BIOS, or RESET CMOS. It is generally located near the motherboard's battery. Note the name of the jumper associated with the inscription. In our example, it is the jumper JP4.
Step 3: Find the reset jumper on your motherboard. It is generally also located near the battery.
If the jumper is on a 3-pin connector, place it straddling the middle pin and the pin that was not initially covered (moving from pin1-pin2 to pin2-pin3, or vice versa). Wait a second and then return the jumper to its original position (pin1-pin2).
If the jumper is on a 2-pin connector and is only straddling one pin, place it on both, wait a second, then replace it in its original position.
Step 4: Plug the power cable back into your case and start your PC: the password has disappeared.
Software reset
If the password is only requested at the setup, it is possible, with certain motherboards, to recover it without performing all the above manipulations.
Use the software CMOSPWD (freeware):
https://www.cgsecurity.org/wiki/CmosPwd
This program works with the following BIOS:
ACER/IBM BIOS
AMI BIOS
AMI WinBIOS 2.5
Award 4.5x/4.6x/6.0
Compaq (1992)
Compaq (New version)
IBM (PS/2, Activa, Thinkpad)
Packard Bell
Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107
Phoenix 4 release 6 (User)
Gateway Solo - Phoenix 4.0 release 6
Toshiba
Zenith AMI
Other Tips in the BIOS category
Modify boot devices
Common BIOS commands
FDD CONTROLLER FAILURE
KB/INTERFACE ERROR
BIOS ROM CHECKSUM ERROR-SYSTEM HALTED
CMOS BATTERY FAILED
CMOS CHECKSUM FAILURE
Update (flash) the BIOS
CMOS Battery Low / CMOS Wrong Memory Size
CMOS CHECKSUM ERROR - DEFAULT LOADED
Lost password - Resetting the BIOS
Accessing the BIOS setup
Hello,
Why do you want to reset the BIOS? What is the issue with your computer?
--
My best friend is called Google. My worst enemy is called Apple.
If you're not happy, give yourself some thumbs up.
Why do you want to reset the BIOS? What is the issue with your computer?
--
My best friend is called Google. My worst enemy is called Apple.
If you're not happy, give yourself some thumbs up.
Hello,
Have you tried starting your computer without a hard drive? With only one RAM? And removing the BIOS battery for 1 minute and then putting it back?
If you've done all that but the blockage remains, then it is likely electronic.
You can use this tutorial to disassemble the machine:
https://www.youtube.com/watch?v=w8gsYJlEsC4
Have you tried starting your computer without a hard drive? With only one RAM? And removing the BIOS battery for 1 minute and then putting it back?
If you've done all that but the blockage remains, then it is likely electronic.
You can use this tutorial to disassemble the machine:
https://www.youtube.com/watch?v=w8gsYJlEsC4
if it doesn't work, wait for other responses, I can't say anything more
amclta+