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Forgot BIOS Password!

post #1 of 9
Thread Starter 
I need help retrieving or resetting my CMOS/BIOS password. I have tried using the motherboards jumpers, or the ones I thought would be it, but to no success. (I did the removing of jumper, placing it in the shortout positon, both with or without battery, and holding in power button, without mains attached) That only lead to a CMOS/BIOS error upon boot. The system is one I purchased off eBay, and as such I have no instruction manual for it. I need help resetting it, or finding a working back door password. Sadly, the only info I can give based off what I see at boot up is the BIOS is AMI/American Megatrends Inc from 2001 approx. I've tried the backdoor passwords I've found elsewhere, but to no luck.

Really appreciate any help, thanks!

(Edit: it's not the one in my signature, thats my main PC, incase anyone is wondering if it's that PC )
Atlantic
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Atlantic
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post #2 of 9
Take your CMOS battery out for about 5-10 minutes, put it back in and it should have cleared the password. Hope it works
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King of the South
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post #3 of 9
also remove the power cord while you do this
    
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post #4 of 9
Thread Starter 
Okay. Trying that as I type
Atlantic
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Atlantic
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post #5 of 9
Thread Starter 
It's still remembered it's password
Atlantic
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Atlantic
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post #6 of 9
Make sure (when the battery is out) to switch the CMOS jumper over to the "CMOS Clear" pins for a minute. Switch it back, then replace the battery. This will insure a more complete CMOS reset. Worth a shot.
    
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post #7 of 9
You didnt leave the battery out long enough. Try removing the battery with all power discinnected. Then hit the power button to discharge any residual power and leave it over night. I know laptops will use a capacitor to store up ower for the bios. That would be a bummer if your board did that!.

Also look for a jumpr to clear the password. It is similar to a clear cmos jumper. Not every board has one, so check your manual.
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post #8 of 9
So you turned your PC off, then unplugged it, then took out the battery for 10-20 minutes?
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by Villainstone View Post
So you turned your PC off, then unplugged it, then took out the battery for 10-20 minutes?

Yes, about 20 minutes. Would taking the battery out, switching the jumpers over and pushing start button for a few seconds, then just leaving it overnight fix it? It's 01:04 my time, so it's a good idea to try that, if you reckon it'd work?
Atlantic
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 @ 2.4GHz MSI nVidia GeForce 8600GT 2048Mb Kingston 
Hard DriveOptical DriveOSMonitor
600GB spread across 3 HDDs DVD/RW Liteon Windows XP Home Edition & Windows Vista Dell CRT Monitor 
Power
450W 
  hide details  
Reply
Atlantic
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 @ 2.4GHz MSI nVidia GeForce 8600GT 2048Mb Kingston 
Hard DriveOptical DriveOSMonitor
600GB spread across 3 HDDs DVD/RW Liteon Windows XP Home Edition & Windows Vista Dell CRT Monitor 
Power
450W 
  hide details  
Reply
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