18 Sep
2004
18 Sep
'04
5:01 p.m.
Hi Pat,
It has been too long for me to remember the specifics of the 780
LSI console, but I do know that you will need a boot floppy -- did
you get one with it? I'm also pretty sure that there is at least
one person on this list which has a 780, but I don't recall if they
have it working or not...
You should be able to determine how much memory is in the console
LSI by examining the cards and then you should be able to modify
that memory and run hand loaded programs in it. Once you know the
LSI is functioning properly, you should be able to run diagnostics
on both the LSI and the VAX from the console LSI, assuming you have
those floppies too.
--tom
At 05:03 PM 9/18/2004 -0500, you wrote:
So, I've got power run now, and am trying to get
the machine up and
running. After I figured out what baud rate it wanted (and reset it
down to 1200 baud from 1800 baud), I've been trying to figure out a
problem...
So, when I connect a terminal to the console port, all I can get is an
address: 173002, followed by an "@" (the ODT prompt). Trying to examine
the addresses using ODT fails. So, it looks like the bootstrap PROMs
are not accessible for some reason. From what I see, it appears that
they are actually contained on the CIB (Console Interface Board) in the
KA780 CPU.
Can anyone verify this, or have any suggestions what I should check? The
power supply bricks all have their "POWER NORMAL" lighs on, and seemed
to have a good 5V output from testing with a dummy load and DMM.
Any ideas? I'm a bit stuck here.
Pat
--
Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/
The Computer Refuge --- http://computer-refuge.org