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How To: ByPass BIOS Password

By ⋅ July 20, 2007 ⋅ Email This Article Email This Article ⋅ Print This Post Print This Post ⋅ Post A Comment
biossecuritypassword.thumbnail How To: ByPass BIOS Password

Have you forgotten the password you used when setting up your BIOS (Basic Input/Output System)? A few months ago I bought this second hand computer to use it as a server, it wasn’t actually that bad it was an AMD 3500+ anyway the owner sold it cheap cause he said he couldn’t change his BIOS settings which he needed to do to use his new PCI Express graphics card. Normally I would of been a nice guy and showed him how to do it, but I really needed a second computer to use as a router for one of my networks.

I’ll show you how to bypass the BIOS password from a desktop computer, here goes:

DESKTOP PC:

1. Power off the computer and make sure that it is unplugged.

2. Open up your computers case. You need physical access to the motherboard to complete this procedure.

3. Find a circular, (mostly) silver metallic object on the motherboard. This is the CMOS battery (see pictures below for an example).

4. CAREFULLY remove the CMOS battery and leave it out for about 120 seconds. This will flush the CMOS memory which stores the BIOS password and all other configuration and will reset everything to factory defaults.

5. Set the battery back into place and power on the computer.

6. The computer should then warn you that the CMOS configuration could not be found. You can either reconfigure it yourself or restore defaults. Restoring the default configuration should be fine.

7. You will notice that the BIOS password has been cleared and you can boot without it. You may reset the BIOS password to something else by going into the BIOS configuration and setting a new User Password for your BIOS (not operating system).

Example:
cmos battery.thumbnail How To: ByPass BIOS Password

TIPS: New motherboards come with a reset jumper, instead of pulling the battery out you pull out the brightly colored reset jumper, turn the computer on, turn it back off and wait 15 seconds before insert the jumper back into place, just remember in which pins it was when you pulled it out, you can check the motherboard booklet that came with your computer to see where the jumper is located.

WARNINGS: By removing the battery (or jumper) and reseting the BIOS you will loose all optimal configurations previously made to it. If you are not sure of what you are doing, contact a specialist for assistance.

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Discussion

One comment for “How To: ByPass BIOS Password”

  1. A. By Using the Motherboard Jumper:

    In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.

    Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don’t have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.

    When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.

    Make sure to turn the PC off before opening the cabinet and resetting the jumper.

    B. By Using Software:

    I have found that BIOS/CMOS Password Recovery Tool is the most effective.:
    BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds

    BIOS/CMOS Password Recovery Tool Service: http://www.biospasswordrecovery.com/

    Reply

    Posted by jhone | October 27, 2009, 5:57 pm

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