Microvax 3100 95 on ebay Buy-it-Now for $80+$35

[Eric Dittman]

> > > > > > Of course, it could be worse - if it was a 4000/100
> > > > >
> > > > > A 4000/10x is the same as a 3100/9x. The difference is only the
> > > > > firmware. Or even worse a bit somewhere in the NVRAM.
> > > >
> > > > It's just a bit in the firmware, and the DSSI daughterboard.
> > >
> > > Umm, and the 4000/10x has the ability to hook QBUS gear up to it...
> > > which I *do* actually care about in a VAX. (UNIBUS is useful too.)
> >
> > It's been a while since I looked in my 4000/100A, but isn't the QBUS
> > interface built-in on the motherboard?  If so, the 3100/9x could hook
> > up to QBUS if you had a set of cables and changed the bit in
> > firmware.
> 
> Hmm.  I'll have to go home and check out my 3100/90, but I don't 
> remember it having anything like that on the board.  Of course, the /95 
> may be different.

I can look inside my 4000/100A tonight.  It's the same motherboard as the
3100/90 so I can see what daughtercards are installed.
-- 
Eric Dittman
dittman at dittman.net