1 Jul
2018
1 Jul
'18
7:38 p.m.
From: Bill Gunshannon
Anybody have any PMI memory modules they might let go
for less than my
first born male child?
The DEC PMI memories are the MSV11-J and (I think) the MSV11-R. The latter is
rare, but the -J's can be found. VARx sold me some -JE's a couple of years
back for a good deal less than their listing price:
http://www.varx.com/CAT/MEMORY-DEC_MSVXX.HTML
The other possibility is that Clearpoint made some PMI memories, which one can
occasionally find on eBait, etc: the QED1 (aka QED-F) and DCME-Q4E (they look
the same, so I'm not sure if they are actually different, or if the names were
just changed for marketing reasons).
Alas, I know of no documentation on either. (If anyone has any, _please_ share
it!) I am slowly trying to work out how to configure them (they can be
configured to run PMI or normal QBUS); contact me privately for what little I
have so far.
Noel
2 Jul
2 Jul
5:34 a.m.
On 02/07/2018 03:38, Noel Chiappa via cctalk wrote:
Correct, but bear in mind that there are 4 versions of the MSV11-J; the
-JB and -JC versions have different ASICs and don't support QBus CPUs.
Specifically, they don't support block-mode transfers and don't work
properly even as PMI memory except in an 11/84, while the -JE and JD
versions support everything. Bill would want the -JD (2MB) version (the
-JE version is 4MB so too big).
--
Pete
Pete Turnbull
From: Bill
Gunshannon
Anybody have any PMI memory modules they might
let go for less than my
first born male child?
The DEC PMI memories are the MSV11-J and (I think) the MSV11-R. The latter is
rare, but the -J's can be found. 
6:17 a.m.
On 07/02/2018 08:34 AM, Pete Turnbull via cctalk wrote:
On 02/07/2018 03:38, Noel Chiappa via cctalk wrote:
Or a pair of the 1 meg ore did they go away before the 11/93 came out?
bill
???? > From: Bill Gunshannon
???? > Anybody have any PMI memory modules they might let go for less
than my
???? > first born male child?
The DEC PMI memories are the MSV11-J and (I think) the MSV11-R. The
latter is
rare, but the -J's can be found.
Correct, but bear in mind that there are 4 versions of the MSV11-J;
the -JB and -JC versions have different ASICs and don't support QBus
CPUs. Specifically, they don't support block-mode transfers and don't
work properly even as PMI memory except in an 11/84, while the -JE and
JD versions support everything.? Bill would want the -JD (2MB) version
(the -JE version is 4MB so too big).
11:18 a.m.
On 02/07/2018 14:17, Bill Gunshannon via cctalk wrote:
On 07/02/2018 08:34 AM, Pete Turnbull via cctalk
wrote:
> Bill would want the -JD (2MB) version
> (the -JE version is 4MB so too big).
Or a pair of the 1 meg ore did they go away before the
11/93 came out?
My oopsie; the MSV11-J is either 1MB or 2MB. I was thinking of MSV11-Q
(which is QBus only).
--
Pete
Pete Turnbull
2148
days inactive
2148
days old
3 comments
3 participants
participants (3)
-
bill.gunshannon＠hotmail.com -
jnc＠mercury.lcs.mit.edu -
pete＠dunnington.plus.com