I work in a middle school and a teacher has a computer(Dell OptiPlex GX240 ) in his room that he inherited from a former teacher. When the computer starts, it asks for the BIOS password. I've tried phoenix, PHOENIX, Dell, BIOS, CMOS, and other "reserved" passwords for different BIOS's. None have worked. The computer was manufactured in April of 2002.
In addition, I also had the CMOS battery removed for about 12 hours. After the removal, the computer did a IDE config and then asked for the password after a few minutes.
I've also tried putting a new hard drive in to no avail. Please help before I toss this computer out a window.