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AMI BIOS password removal

By jean_gui ·
Hi,

I have fond an old Pentium II close to a trash and I am trying to get it work again in order to install a small linux distribution with a apache server on it.

The problem is that it doesn't boot on my floppy disk and when I want to change the bios setup to make it boot on the floppy, I cannot ...!!
It is asking me for a password ?
I have checked onto the web, for getting a password but all the backdoor passwords does not work.
What can I do ?

Thanks in advance for your help.

ps : my motherboard is an American Magatrends (AMIBIOS 1996).

cheers
Jean-Guillaume LALANNE

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by TheChas In reply to AMI BIOS password removal

There should be a jumper on the motherboard for clearing the CMOS memory.

Switch the jumper to clear,
Boot up,
Shut down,
Set the jumper back to normal.

When you enter BIOS setup, you will need to reset all preferences as needed.

If you cannot find the clear CMOS jumper,
remove the CMOS backup battery,
unplug the power cord,
let the unit set for at least 1/2 hour.

Power back up. The CMOS should be cleared.

Chas

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by dmiles In reply to AMI BIOS password removal

RECOVERY IF YOU CAN BOOT THE SYSTEM


If you can boot the system, BIOS password recovery is usually easy. The first thing you will want to do is to use a BIOS password cracker to recover the actual password. There are a large number of BIOS password crackers available from a variety of sources. Some BIOS crackers only work with certain BIOS versions and some work better than others. You may have to try a number of crackers before you find one that works. We have listed two sites where you can download free BIOS password crackers below:



Christophe Grenier's CmosPwd
Eleventh Alliance
Rempass



Some BIOS? have pre-installed backdoor passwords that enable access to the system if you have lost or forgotten your password. Attempting to regain access to the computer by using one of the following backdoor passwords should be your first step if you have lost or forgotten your BIOS password and cannot boot your computer. If you are able to regain access to your system by using a backdoor password, you can then use a password cracker to reveal the stored password or enter the BIOS setup to change the password. These backdoors are more likely to work on older desktop systems. We are not aware of any name brand laptops or notebooks that have backdoor BIOS passwords.

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by sgt_shultz In reply to AMI BIOS password removal

well you probably have your mboard docs downloaded from internet by now and can't find this password/cmos clearing jumper. so my 2 cents: take out the cmos battery. go to radio shack. get a new one. get soldering iron also as now you have learned solder tab on battery is sintered not soldered and you wrecked it slightly. get some flux. don't hurry. come home and put pc on clean bench with good light. put in battery. take in with wire to fix breakage. cmos be cleared. you are gonna need new battery anyway and costs $4.95 plus hair if you broke it taking it out. if you like old p11's out of the trash...well i shan't go there except: IMHO this is not helping your career...spend your time cramming A+ cramexam book instead, silly!

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by jean_gui In reply to AMI BIOS password removal

Thanks a lot for your answers.

Finally, I have managed to clear the password by acting on the hardware (I found the jumpers on the AMI motherboard : pin 5 and 6). I was a little bit stressed to play with hardware, but finally it worked...
Now I can install a small SME distrib and everything will be cool ! I don't understand people that throws away PC ...

Thanks again.

Cheers

Jean-Guillaume LALANNE

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