12 Dec
2003
12 Dec
'03
10:49 p.m.
From: "Christos Papachristou"
<chpap(a)ics.forth.gr>
To: <pups(a)minnie.tuhs.org>
Date: Fri, 12 Dec 2003 18:31:12 +0200
Subject: [pups] pdp11/73 memory
I recently found a cabinet with a MicroVAX II (in 2 BA23 enclosures) and
quite a lot storage devices on it. I plan to replace the MicroVAX II CPU
module (M7606-AA) with a pdp11/73 CPU module (M8192) . I only have a
512k RAM module (M8067LA) for the pdp11/73 . The microVAX has two quad
height memory modules , but I haven't checked yet whether they are 1, 2
,4 or 8 megs each (ie M7607,M7608 or M7609) .Is it possible to keep some
of the MicroVAX memory modules if they are below or equal to 4 megs?
No.
MicroVAX memory uses a different interconnect scheme.
It is not in the Qbus address space.
carl
--
carl lowenstein marine physical lab u.c. san diego
clowenst(a)ucsd.edu