16 Jul
2002
16 Jul
'02
5:31 p.m.
--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
...Incidentally, leaving the jumper in and putting an
NPR-device in the
slot will also cause 'interesting' problems!
That's what I spent a couple hours debugging, c. 1986 - a new, never-
before-seen-the-light-of-day VAX 11/750 and a TU80 controller. Prior
to that, I'd only ever worked on used VAXen that had previously been
stripped of all NPR wires (since we *sold* DMA Unibus cards and had
as many NPR grant cards as we needed).
That's why when I refit a jumper, I use red wire,
to make it easy to
spot next time!
Good advice. At least use a color other than the typical straw-yellow
wires.
-ethan
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