Dell Optiplex GX260 Motherboard troubles

[Omega]

Basically, my school has about a dozen Optiplex GX260's and they're passworded in the BIOS. We've already popped out the CMOS battery and let it reset, to no avail. So I was wondering if anybody could find a diagram for the Optiplex GX260's motherboard so I can see if it has a CMOS reset jumper that I need to take care of.

Thanks,
Omega

[Airbozo]

Here you go;

http://support.dell.com/support/edoc...at.htm#1117484

[calumc]

There's a utility on knoppix std for cracking BIOS passwords if resetting wont work

[Omega]

Thanks and +rep to both of you.