21 Nov
2013
21 Nov
'13
9:26 a.m.
Sent from mobile device that advertises itself for no good reason
On 21 Nov 2013, at 08:00, "Peter Coghlan" <cctech at beyondthepale.ie>
wrote:
;)
It runs OpenVMS fine despite the fatal memory errors.
Well, I installed some random jumpers and it got me to a console prompt!
Tony's not going to be pleased :-)
I wouldn't recommend it either. If it were me, by the time time I got to
the next problem, I would have forgetten what jumpers I put where that might
have caused it.
Ideally, I would suggest finding out what the jumpers do, figure out how they
might affect the problem in hand and what other problems they might cause.
It is possible that some of them should actually be there but were removed by
a previous owner following a similar approach to problem solving :-)
According to a similar manual, they are actually supposed to be there...I think,
Consider removing the added jumpers one by one to determine which ones provide
some improvement, leave the rest out and then stick a note to yourself about
them inside the case.
Will do once I clean the case.
KA41-A V1.4
F_..E...D...C...B?..A...9...8...7...6...5...4_..3_..2_..1?..
? E 0040 0000.0045
? D 0050 0000.0005
? C 0080 0000.4001
?? B 0010 0008.0280
? 7 80A0 0000.4001
? 6 80A1 0000.4001
?? 1 00C0 0100.2004
Errors, but it came up nonetheless...
The single question marks are non-fatal errors and the double question marks
are fatal errors.
In a combination of vague recall and guessing, I think that E and D are
probably due to the lack of battery and indicate problems with the real time
clock and non-volatile storage.
Yeah. I'll need to get a 3.8V bAttery for that to go away.
C refers to the serial interfaces and I think you get an error because one
can't be tested as you are using it as a console.
B refers to the memory. This is probably the only error of consequence.
7 and 6 refer to the SCSI buses and I think you get a fatal error if they are
not terminated and a non-fatal error if there are no devices visible on the
bus.
1 refers to the network interface and you get a fatal error if there is no
network plugged in to the selected connector.
(F would refer to the monochrome frame buffer if this was a VAXStation and
4 would similarly refer to an optional colour graphics card.)
Regards,
Peter Coghlan.