IBM 700 Power on bios and Sup password

I picked up an IBM 770 at a yardsale. The machine I believe has been password protected, both poweron and supervisor. Does anybody know how to break these passwords ? it would make a great machine for my son, and i would not worry about it being stolen. Maybe the trash pile for it, but for $10.00 who cares.
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middenfaceConnect With a Mentor Commented:
you can reset the Bios password by removing the Battery inside the laptop, (not the big battery but a smaller coin type located somewhere on the MoBo) for 30 seconds or so. then reinstall windows or whatever to have clean passwords for that too
mind you you will also have to remove the big battery too obviously :-)
My bad I meant to say 30 Mins not seconds
ChrisSchumannConnect With a Mentor Commented:
Middenface's solution will reset the power on password, but not the supervisor password. The supervisor password is stored in a non-volatile memory. You can either replace the motherboard, or the security chip on the motherboard, or pay someone to do it.

Or, here's a web page that will allow you to recover the password if you don't mind soldering a few wires and connecting to another computer with a serial port:
This page has a TON of information on the whole process.

The hard drive may have a password set too. It is often the same as the supervisor password, but not always.
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