I have an IBM Series/1 system also. I have many manuals and books for it that I need to get to bitsavers. Also, somewhere I have some software on 8" floppies. Unfortunately, I don't have a working boot device for mine. Some photos are on my web site at www.dvq.com under "old mainframes and minicomputers". Behind the operators panel on my unit is a large power supply. There are 10 or so boards in the main unit, then cables which run down to an expansion chassis. Possibly, those are the cables that have been cut on yours. The main chassis holds the processor, memory, and boot device attachment card, the expansion chassis has extra I/O cards, at least in my system. There were quite a few different processor and system configurations so my info may not match yours. Let me know if I can help in any way. You can contact me off-line if you want. Bob JP Hindin <jplist2007 at kiwigeek.com> wrote: Hey all; I have an IBM Series/1 that I picked up a few years ago. I've just pulled manuals from BitSavers (Whee! Way to go!) and clearly have an awful, awful lot of reading to do. Unfortunately my S/1 was pillaged by some cretin before I picked it up - the logic section appears to be complete, although some wires have been cut (Hopefully they were leading to external devices). Unfortunately everything behind the operators panel is missing - I'm not even sure what went there, I'm guessing the units power supply. Is there anyone out there on the list that has one of these that can help me get an idea what I'm missing and, in the best case, maybe even has a little software for the unit? Thanks all; JP (knee deep in PDFs)