New subject: VaxStation 1, Mac 0...

28 Mar 2000

On Mar 28, 11:51, CLASSICCMP(a)trailing-edge.com wrote:
...
  On Mar 28, 20:15, Olminkhof wrote:
 >The cards are, from one end: 
...
  M7195 
 128 kbyte RAM 
It's actually a MXV11-B Multifunction card, with 128KB RAM, and ...

...
  M8067 
 Another 128 kbyte RAM 
Or maybe 256K

...
  It's also particularly confusing, because you
evidently have no serial
 line cards nor disk controllers in the backplane.  I have no idea
 how you even got the ODT prompt out of the machine. 
... the MXV11-B has two SLUs, of the same type as a DLV11.  It also has a
bootstrap (usually) which is vaguely similar to some of the 11/23+ ad early
11/73 bootstraps, and an LTC.  And a million jumper posts.  I have a
document listing their names/functions somewhere online, if you need it.

...
  There seem to be some (slight) behavioural differences
depending on which
 serial port I plug the terminal into. 
Well, the one on the left of the card, looking into it from the back, is
the console line, if that helps.

...
  I'm unclear about the switches and lights, but I
have the run light on, the
...
  DC light on, the fixed disk write protect switch out
and it's red light out,
...
  and the fixed disk ready switch out with it's
green light on. 
Well, that should be running.  As Tim noted, there isn't a disk controller
in your list, though.  I'd expect an RQDX1 or maybe RQDX2 in that machine
-- more likely an RQDX1 if the drive is an RD50.  If there isn't, it won't
do much.  It might be worth trying to connect a terminal to the console SLU
and seein what happens when you start it.  You can break into the bootstrap
routine using ctrl-C if necessary.

-- 

Pete						Peter Turnbull
						Dept. of Computer Science
						University of York

PDP11/23 More dumb questions