[11/34A] ARRRRGH!! <sound of head banging on wall>

From: Tony Duell <ard_at_odin.phy.bris.ac.uk>
Date: Tue Nov 11 15:10:43 1997

On Tue, 11 Nov 1997, Daniel A. Seagraves wrote:

> The BUS ERROR wasn't from the card not being installed. I reinstalled

Can you halt the CPU (RUN light off) from the panel? If not, then you've
probably got grant problems. Try pulling the terminator (M9302 card, I
think - anyway it's in the far left slot). If you can now halt the CPU
from the panel, you've certainly got grant problems.

> everything, and it refuses to boot.
> Apparently, I've snipped the wrong wires on the UDA50 slots.
> Or forgotten to plug things in...
> No, that's not it. EVerything's plugged in, the lights on the UDA strobe,
> I've cut the wrong pins and boogered this up worse.

These things happen. Remember 'The designer who never blew a chip is a bad
designer. He never designed anything'. That was said to me years ago, and
I've lived by it ever since. You don't want to see a list of the stupid
mistakes I've made...

> I really should stop destroying these machines and just pass them on to
> more capable people...

Nonsense. The only way to learn is by doing...

> But I like them too much. Where are the pins I am SUPPOSED to have
> clipped? I'll rejumper the old ones, it doesn't look hard...

OK. They're on the 3rd connector from the back (2 connectors behind them,
3 in front). They're the rearmost 2 pins on the righthand side (looking
from the _TOP_ of the backplane). You'll find they're linked by a little
loop of wire close to the backplane. That's what you should have cut.

What, in fact, did you cut?

>
>
>

-tony
Received on Tue Nov 11 1997 - 15:10:43 GMT