12 Dec
1999
12 Dec
'99
10:02 p.m.
I've read the micronotes but I'm still confused. I've got a DHV11 in a
BA213 which is 12 Q/CD slots. Since the slots aren't Q/Q it doesn't need
the jumpers installed for the grants but will having them installed screw
anything up?
--Chuck
13 Dec
13 Dec
1:31 a.m.
On Sun, 12 Dec 1999, Chuck McManis wrote:
I've read the micronotes but I'm still
confused. I've got a DHV11 in a
BA213 which is 12 Q/CD slots. Since the slots aren't Q/Q it doesn't need
the jumpers installed for the grants but will having them installed screw
anything up?
Chuck, I have the DHV11 Technical Manual here, if that would be of
any help. I can transcribe relevant parts, or send it to you for a
loaner...
Let me know.
Cheers
John
2:17 a.m.
At 11:31 PM 12/12/99 -0800, John Lawson wrote:
Chuck, I have the DHV11 Technical Manual here, if
that would be of
any help. I can transcribe relevant parts, or send it to you for a
loaner...
The relevant bits in this case would be the description of the jumpers "W1"
and "W2" which control the shorting of the bus grant pins on the C/D fingers.
One way to answer the question is this:
Does the DHV11 with its bus grant jumpers installed, interfere
with memory
connected to a KA650 VAX processor?
I've got a BA213 chassis which is Q/CD for all of its slots. Interestingly,
from another BA213 I pulled a CXY08 (M3119) and it had
its jumpers
installed. That would suggest that they don't interfere with the
VAX memory
subsystem.
When I install the DHV11 "ahead" of the KFQSA DSSI controller, the
operating system periodically gets bogus data in its memory pages. I'll
probably go ahead and cut the jumpers as an experiment, but this isn't
"knowing"
--Chuck
9159
days inactive
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days old
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