24 May
2016
24 May
'16
6:37 a.m.
But the M9312 has bus terminating resistors (unless you actually desoldered
those!). Then you have three terminators in your system! One in the M891 at
the CPU, one in the M9312 in slot 3 of last DD11, and then a M930 in slot 4
of DD11.
If you want the M9312 you should put it with W1-W5 installed in the slot 4
where you have the M930. You should not have both a M930 and M9312 (when
you have the M891).
/Mattis
After I sent the email to this group, I checked the M9312 and found it was
terminated. I was told it was not, I should have checked for myself but I
grew suspicious that it should be by default. Now, the M9312 is in the
last slot, and I removed the M930. There is nothing except a grant card in
the 3rd slot.
I fixed the core problem I described in my email. I also am able to store
into core and run "chase the lights", I have generally speaking a working
16K system.
Thanks again.
Next - Get a serial card running and resume efforts to boot RT11 from an
RL02 drive.
Bill
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