Steve, Nice found, I suppose you mean the HP 9836C aka 9000 236. Cleaning the drives and reseating the boards do solve most of the problems you described. On the hp museum site you can find the basic boot disks , you need teledisk to recreate them, or you can use hpdrive (www.hp9845net) to mount the image on a PC and emulate an external hp-in drive. Tony's schematics are also to be found on the HP museum site.(www.hpmuseum.net) Also on bitsavers you can find alot of info. -Rik -----Oorspronkelijk bericht----- Van: "Steven Landon" <slandon110 at gmail.com> Verzonden: ?26-?9-?2014 05:26 Aan: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Onderwerp: HP 9635C System information- Just got one I just picked up an HP 9635C, found it on craigslist about a 1.5 hour drive from here. Rescued for a friend in upstate NY, I cant get it to boot off any of the disks that it came with, it reads then gives I/O error. Also is it easy to make boot disks for this thing and is there a source of images??, Id really like to get this thing operational before I hand it off to him Thanks Steve