pdp11/70 / MK11

From: CLASSICCMP_at_trailing-edge.com <(CLASSICCMP_at_trailing-edge.com)>
Date: Fri Apr 7 08:52:35 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

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_at_trailing-edge.com
 Trailing Edge Technology          WWW:   http://www.trailing-edge.com/
 7328 Bradley Blvd		   Voice: 301-767-5917
 Bethesda, MD, USA 20817           Fax:   301-767-5927
Received on Fri Apr 07 2000 - 08:52:35 BST

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