At 02:22 AM 7/20/02 -0500, you wrote: I once attempted to repair one of HP's HP-IB hard drives used a Vertex drive internally. I THINK it was a V160 but I'm not sure now. I never did find a replacement that would work. IIRC I tried other brand drives but I couldn't LL format the new drive with the normal user stuff from HP so I don't know if the replacement drives were incompatible or ?? or if the replacements failed due to my inability to LL format them. I suspect you'll run into a similar problem. In addition, you'll lose all your SW if you replace the drive. If I were you I'd do my best to get that drive working again. The fact that it spins up initailly is a promising sign. I did look through my HP disk drive notes but I couldn't find anything that told what model HP used the Vertex drive. If you find a useable replacement or manage to resurrect that drive I'd be interested in hearing what you learn. Joe