Any easy way to post pics of the top side of both boards? I can't
definitively ID them but we should be able to make a good guess as to
what's actually on there looking at all the major ICs...
Did you just buy this? :O
http://vintagetech.com/sales/Big%20Iron/PDP%2011-44/Information
Best,
Sean
On Wed, Sep 23, 2015 at 5:40 PM, Josh Dersch <derschjo at gmail.com> wrote:
  Hi all --
 I just added a PDP-11/44 to my collection and it appears to have some
 manner of cache upgrade; it's made by Digital Data Systems (DDS) and
 consists of two cards, one hex-height labeled "SC44 SETASI" (in the place
 of the normal 11/44 cache board) and a second quad-height labeled "1051" at
 the end of the first backplane.  The two are connected via a ribbon cable.
 I know DDS made some seriously nice upgrades for the 11/70 but I can't find
 anything on this board set at all.  I'm assuming it's just a souped-up
 cache but it'd be nice to know more (and docs would be excellent of
 course).
 Thanks,
 Josh