Today I have saved from the Skip/Tip/Dumpster two items of IBM manufacture, about which I know even less than the Prime 550-II I'm trying to get working. To wit: An IBM 9404 processor, at least that's what I make it out to be, since it's front panel has IPL settings, a QIC-1000, and attached to the back are several 8-channel Twinax adapter cables. A p-Touch type label on the side says 'XS400' The ID plate also says its release level is V2R2MO and its PIF Level is C2261220. With it, though perhaps systemically unrelated, is an IBM 3174-1R, obviously a terminal controller of some sort. It has two 5 1/4 floppies and a niche for storing the diskettes, and there are three of them, marked by printed IBM label for this machine. Also there was a complete (non-IBM) PBX-type voicemail system, but that I know something about and can get on the air. (Sam: its a VMX D.I.A.L.) I am curious to know if anyone is familiar with the IBM stuff and even more curious to know if anyone *wants* the two.. I sure don't. They are not terrifically heavy and thus shippable... hint hint hint. I could not bear to see them go off the loading dock into Oblivion. Cheerz and Thanks to all for the Prime help so far. This weekend I'll have time to research more on my own. NOTE to Prime-familiar folk who may be reading this: I will buy PR1ME engineering/maintenance docs related to the hardware I have; or copies of same. 250/550 series. John