Re: Only cracking I have done is
I once was given a batch of Zenith Data Systems 286 boxes to try and "recover" (auction lot, no idea of passwords). Luckily I had a very clever local sysadmin who told me to follow these steps:
1) Switch off the computer
2) Open the box
3) Unplug the floppy drive form the main board
4) Start the computer
5) You are now in the BIOS.
6) Reset the password and switch off the computer
7) Plug the floppy drive back in
8) Voila!