Disable administrator password in Dell GX520

Hi I manage tech for a medium sized nonprofit and we are opening a new place. The new place came with a few computers and one is a Dell GX520. I need to install XP Pro but can't change the boot order because someone set an admin password in the setup! I've removed the battery, moved jumpers, but nothing seems to reset the bios and no one knows what or who set the password on the system!  Is there a way to reset this without the admin password?
John MahoneyAsked:
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MaSTeRiToConnect With a Mentor Commented:
talkinsmakConnect With a Mentor Commented:
For most Dell Optiplex desktops, the steps to reset a BIOS password and clear all CMOS settings are:

Locate the 3-pin CMOS password reset jumper on the system board.

Remove the jumper plug from pins 1 and 2.

Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.

Replace the jumper plug on pins 1 and 2.

I know you've said you tried this.  One thing I like to do is remove the battery, unplug the system and then push the power button to discharge the capacitors in the power supply and on the mother board.  After that I let it sit for a few minutes before reassembly.
Give it a go and let me know.
John MahoneyAuthor Commented:
I was able to get into the system. I guessed the account password and got logged on, but this is not the same password as the setup password in the BIOS.
John MahoneyAuthor Commented:
Worked! Thanks much.
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