Fw: PDP-11/44 assistance.... (possible repost??) - test-drb@ccmp.vtda.org

15 Oct 1999

I didn't ever see an answer to this post nor am I sure it ever went out.
Sorry if this is a repost...

----- Original Message -----
From: Jay West &lt;west(a)tseinc.com&gt;
To: &lt;classiccmp(a)u.washington.edu&gt;
Sent: Tuesday, October 12, 1999 8:01 PM
Subject: PDP-11/44 assistance....

...
  Tony had asked about what chips were in the standard
memories board that I
 posted about....

 It is Standard Memories MM-144. Unibus: there's two rows of 20 ram chips
 each, and underneath that is two rows of 20 empty sockets each. Underneath
 that is two rows of 19 ram chips each, and underneath it is two rows of 19
 empty sockets each. So, (2x20)+(2x19)=78 chips total. The chips are all OKI
...
  M3764-20RS. On the right side of the board on the top
are three LED's
 designated +5B, RUN, and U.ERR. Underneath that is a 14 pin DIP jumper pad,
...
  and two 8 switch DIPS. Any ideas on how much memory
this is and would anyone
...
  happen to have docs on this board?

 Also, I think my previous post about the modules in the 44 wasn't listed
 correctly. The slots are filled as follows:

 1 A-B M7090 CIM
 4 A-F M7094
 5 A-F M7095
 6 A-F M7096
 7 A-F M7097
 8 A-F M7098
 10 A-F MM-144 (see above)
 14 A-B first half of M9202
 15 A-B 2nd half of M9202
 16 D G727A
 23 M9302

 I found it odd (to my very uninformed mind) that the G727A was stock in slot
...
  16 D with nothing else around it. If I don't want
to hook anything up to
 this system other than a serial console for now, how should I move the above
...
  cards around to prevent continuity problems???

 Thanks in advance!

 Jay West