Subject: Re: Q-bus slot 13?
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: None <>
List: port-vax
Date: 07/24/2000 16:58:29
On Mon, 24 Jul 2000, der Mouse wrote:

> I recently had two MicroVAX-IIs dropped on me, so to speak.  They're
> the fat case, not the skinny one - I can never remember the BA-
> nomenclature, and the model number on the sticker for the case calls it
> a 630QB-A2.


> So I'm asking the collective wisdom of the experts here, can I make
> this work in my skinny case, or do I have to haul one of the fat cases
> home?  Will it work to leave that board not plugged into anything?  To
> plug it into an ordinary Q-bus slot?  What *is* that slot 13?

Powerr for the breakout board logic thats all.

> The "new" controllers are different; one is a dual-height M7555 and the
> other is a quad-height M8639.  But the breakout boards, which are
> dual-height and have no number on the handles, appear identical, and
> the foil side etch includes the lettering "5016673-01B1 M9058".

M7555 aka RQDX3 (later version)
M8639 aka RQDX2 (older controller)

> Or are the disks supposed to work regardless of the controller, and
> this indicates that all four "new" drives really are broken?  (Or
> perhaps the cables I was using....)
> 					der Mouse

Maybe drives broken or jumpers are wrong.  Also drives formatted for RQDX2
are not correctly formatted for rqdx3 (or the reverse!)).