I used to support these machines but its been a while. i think the hard drive is proprietary, but i do remember someone somewhere mentioning adding a really big hard drive and getting it to work. send me another notice via private mail reminding me, and i will check on it when i get back to work. david In a message dated 98-02-04 00:20:43 EST, you write: << Yes, its a 2011-c34. I have no problem booting from the rom. I hear the hd spin up but then it slows down again and the light stays on. I get a 1701 error and an indication to press f1. After pressing f1 the computer boots from either the floppy or the rom. I wish I could have made backups first but it was doa when I got it. Do you know if the parts (hd floppy) are interchangeable with ps/2 hardware? Thanks for the software source tip. >>