Just saved this PowerMac from going to the dump. Turns out to be a 6100/66 DOS Compatible. I have never actual seen one of these before. I cleaned off the snow and dried it off. Lots of snow and ice here! I plugged it in, it chimed nicely, but no video output. It has a 500mb SCSI harddrive. The DOS card has a 486 DX2 cpu on it. The harddrive runs quietly. Not really sure what I will do with this unit, but I will try and get it going.