Hi Joe, Assuming you are talking about the one you sent me a photo of. You already know as much as I would guess. They look like a system 86/3xx, but I don't know the specifics. It looks like you really have to learn iRMX. I did remember one thing about it. Seems like there was an administrator account out of the box called "superuser". Don't know the default password. Give it a try. I never did anything with Xenix. So nothing to remember. Sorry. BTW, can't remember if I told you, but I located my ISIS-II(W) and can send you a copy of the boot diskette. Assume you want DD, right? The cable from the MDS to the winchester disk package was a three-row D-connector. Probably one-to-one. Does your chassis have something like that connector on it? Dave Joe R. wrote: