Bios Passwords

I have placed a bios password on my PC at my house so that none of my roomies would have access to it. Then a while back my hard drive crashed and I had not the funds to replace it till now. Since the system has been down I have only been able to use my lap top or my work systems. I now want to use my PC at my house only I have since forgotten my bios password. Is there a way I can recover the password or some sort of software I can use to access my computer again?? any help would be much appreciated
[email protected]

There are a number of "back door" passwords available especially on older systems. I don't know any of them but google for them, they must be around somewhere.

Failing that, reset the bios as per the mobo manual (usually involves moving jumpers)

just to add to slartys reply, if you`ve got an older computer you could just take out the battery on the motherboard for a min and it`ll reset the BIOS.

Depending on the type of system you have, you can use one of several methods. Some motherboards have a jumper for resetting the BIOS (Dells have this).

1. Open the case, move the jumper, reboot, clear passwords, shutdown, switch jumper back, reboot.

2. The battery method. Turn system off, unplug power cord from power supply, remove CMOS battery. Count to 30. Replace battery. Reboot.

3. Short the BIOS. With system off and power cord plugged into power supply to maintain ground, remove BIOS chip from socket (note direction), place pins-down on bare metal spot on power supply. Count to about 5 or 10. Carefully, replace BIOS (in correct direction). Reboot.

There may be other methods, but one of these will normally get you back in business.

bios backdoors >> http://www.labmice.net/articles/BIOS_hack.htm

what type of box/bios ?

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2. The battery method. Turn system off, unplug power cord from power supply, remove CMOS battery. Count to 30. Replace battery. Reboot.

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I think you'll have to wait a bit more than 30 seconds

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I think you'll have to wait a bit more than 30 seconds

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Agreed....15 minutes is more the norm.....

Personally I have never got a back door password to work in years. Old school yeah, but haven't been successful for a while.

Maybe I should point out where these are most effective.

1. Usually in the newer, more current machines and motherboards.

2. Early CMOS systems, where the clock circuits and BIOS didn't retain data beyond a few seconds. Removing the battery in current motherboards may require days for the circuits to discharge, so, see number one.

3. Really old stuff, PC, PC XT and early AT (including some 386 and 486) systems where you could actually remove the BIOS chip and dance it on the power supply.

Ive always found that removing the CMOS battery and then freezing the Mo Bo will reset any BIOS on any Mo Bo.

CMOS chips do not like the cold at all!

And what abot the CMOS Reset Jumper..? this was on most mobos.. and on a number i have installed up till 2 months ago..

certainly saves removing chips batteries and things .. just remove the power cord... remove the jumper from the Normal position.. place in the Reset position.. call your GF.. talk dirty for a while.. return to the PC.. remove the jumper from the reset position and place back in the Normal position.. and voila.. but there are other ones like zida/tomato m/b that had you hold the F key during powerup..oh and removeing the battery for three week didnt help(thats a 4yearold HOS)..


cheers..just my .02 worth

You still have to remove the battery on a few of them aswell, I find that most ASUS MO Bo's require you to do this, atleast the A7V xx ones.

I guess they are all diferent just depends what you have.

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Originally posted here by Tweekerjay
I have placed a bios password on my PC at my house so that none of my roomies would have access to it. Then a while back my hard drive crashed and I had not the funds to replace it till now. Since the system has been down I have only been able to use my lap top or my work systems. I now want to use my PC at my house only I have since forgotten my bios password. Is there a way I can recover the password or some sort of software I can use to access my computer again?? any help would be much appreciated
[email protected]

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Tweekerjay, you have not mentioned the tech.details of your motherboard[mb] there are a few default pwds which you could try before thinking of opening your sys cabinet. check out on your manufacturer's website etc. below i have listed certain pwds which you can try ALFAROME, aPAf, _award, AWARD_SW, AWARD?SW, AWARD SW, AWARD PW, AWKWARD, BIOSTAR, CONCAT, CONDO, Condo, d8on, djonet, HLT, J64, J256, J262, j332, j322, KDD, Lkwpeter, LKWPETER, PINT, pint, SER, SKY_FOX, SYXZ, syxz, shift + syxz, TTPTHA

mostly AWARD_SW does the trick however try out other pwds if it fails.

I think the best thing is to remove the jumper, (which in most cases located near the BIOS chip).
You need to remove the jumper, power on your machine, then shutdown, place the jumper back and start your machine.

:)

battery removal works or check in the motherboard for clear cmos jumper or there are certain motherboard just press the J & F keys when ur turning the machine on that too clear the cmos but not sure about the bios password it might for try it out man

I believe that if you reset the BIOS via a jumper it is not only the easiest way, but also the safest.