>
> On Sun, 1 Mar 2020 at 17:58, Joseph Zatarski via cctalk
> wrote:
> >
> > I've started inventorying a lot of the stuff I'd like to pass on here:
> >
> https://docs.google.com/spreadsheets/d/19vhF-o6vx9g7l-D8cvLJ5OPJzpdmU9PTTknbxY-mY58/edit?usp=sharing
>
> I can't see these in the Google sheet,
> It's a VAXstation II/GPX. I'm trying to install VMS 5.5 (from CD if it
matters; there is a CMD CQD-200 or -220 as the only storage controller) and
routinely getting machine check exceptions.
>
> Standalone backup always boots. Sometimes I get an exception the moment I
hit on a restore; sometimes
OK, so where should a thing like this go: https://pastebin.com/taQwaTV6
Anybody got a decent place to upload that? it's my notes on the MS650-AA,
and more generally the KA650 CMCTL memory subsystem.
Includes my theory of operation of the CMCTL, the organization of memory,
the ECC equations (kinda
> So, a couple of posts yesterday did not show up in the date archive:
>
> http://www.classiccmp.org/pipermail/cctalk/2019-June/date.html
>
> which is how I read the list. They are:
>
> Software for Fairy YL-23 IC tester wanted
> http://www.classiccmp.org/pipermail/cctalk/2019-June/048094.htm
sorry, the technical manual actually, which has an architecture *chapter*
http://www.bitsavers.org/pdf/dec/vax/650/
The idea, eventually, is that I will publish my notes so that you wouldn't
need the logic analyzer, at least for the 8MB board. I just had it hooked
up, so I demoed it. The notes wil
Hey Everyone,
I just thought I'd share a video of how I'm going about troubleshooting the
bad DRAMs on my MS650 memory board.
https://youtu.be/eDMhdAEFEgc
I apologize for the shaky-cam, I don't have a tripod, and I needed to do a
lot of panning anyway.
I will be sharing my notes on the MS650 on
