Question about Dell OptiPlex GX520n PC Desktop

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I remove the battery during 15 minutes and nothing happen, i reset the jumper and nothing happen. the request for a password still there nay aother sugestions? i would greatly apreciate them.

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  • edgar castellon
    edgar castellon Jun 23, 2009

    the pc still has the problem, i can't get to the system settings, so i can't work on it

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Well you are misunderstanding, taking the battery from desktop pc effects only the time of the computer and doesnot change anything, while moving the jumper from one side to other break the bios password. when you replace your jumper wait some seconeds and turn your computer on while the jumper is replaced, it will make some beeps or will ask to reset the password depends each model, then shut the computer off, put the jumper back in the right place and turn on the computer, then you will notice no more bios password. make sure you move the right jumper usually the on close to the battery and for more help google this problem it will show you the pics how to do it.

Regards

Posted on Jun 23, 2009

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HI,
No need to worry. There are many known ways to reset / remove / bypass the password:
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  • By using the motherboard jumper
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Now I'll try to explain each method one by one:
A. By Removing the CMOS Battery:
xrojer_2.jpg
Almost all motherboards use a small coin sized CMOS battery to store all BIOS settings along with the password. To reset the password, unplug the PC, open the cabinet and remove the CMOS battery for approx. 15-30 minutes and then put it back. It'll reset all BIOS settings as well as the password and you'll need to re-enter all settings.
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B. By Using the Motherboard Jumper:
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.
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Make sure to turn the PC off before opening the cabinet and resetting the jumper.

C. By Using MS DOS Command:
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