pdp11/70 / MK11 - test-drb@ccmp.vtda.org

7 Apr 2000

...
 > Sure, get a MJ11 memory box (or, rather, 4 times
as many MJ11's as you
> had MK11's) :-). 
...
 Umm... sure.  _That's_ an improvement. 
Hey, but it's real core!

...
 > There are several other third-party memory
boxes/cards available too. 
...
 How many of these are floating around these days? 
Serious question, no
smiley. 
Probably pretty difficult to find.

...
 > Out of curiosity, why can't you use your
MK11's?  Not enough power to
> run them and the 11/70 at the same time?  I had to take multiple 15A
> circuits to run my 11/70 with MJ11 memory boxes. 
...
 Just so I'm not making a serious assumtion here, an
MK11 is the high-
density memory cabinet for the 11/70, right?  What I have is an entire
H960 rack with one BA-11 that houses 16 256K boards (mess-o-4116 DRAMs)
and some incidental memory controller cards.   Do I have what I think
I have? 
The "original" MK11 goes up to 1 Mbyte in a box, according to my books.
It certainly was common to see them upgraded in the field to the configuration
that you have, though I don't know what the official DEC designation for
the high-density version was.

-- 
 Tim Shoppa                        Email: shoppa(a)trailing-edge.com
 Trailing Edge Technology          WWW:   http://www.trailing-edge.com/
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