thanks there to my sales agent... (ha ha, only kidding :) I pulled a few cards the other day when I took that photo of the insides - I was a little out on my dates; earliest copyright date I can see is 1977 and the last manufacturing date on any chip was sometime in 1979. card list sounds about right without wheeling the machine out of storage again, and no I didn't see any custom chips in my machine either. Think there are only two boards for the display, joined both on the backplane and the outer edge. Then CPU, memory, RTC, keyboard, drives x2, printer, and an unknown board (see below) curious. Mine's definitely a Diablo unit and plugs into its own card within the cardcage in the system unit. But there's also a seperate card in there (oddly, marked as Diablo!) with a large connector on the outer edge (2 rows of pins, non-staggered) with nothing plugged into it. I have no idea what that's for - that connector looks purposeful though. There's not a huge amount of logic inside this thing so I suppose figuring out a circuit diagram wouldn't be too difficult and maybe then its function would be revealed. oh, and it's a 'proper' machine, in that it has wheels on the bottom ;-) cheers Jules __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page http://uk.my.yahoo.com