Hi All-
I got a new deneb card for my A4000 for Christmas. Slapped it right in and plugged stuff in and fired up- but no go. After trying many variations I got it to run for maybe 30 seconds (long enough to know I really wanted it!). Got on Amiga.org to see if there was any buzz about such problems and read the subway file and the advice. This got me to thinking about taking things back to square one, no speedup patches, no quaddoubbler, etc. Now it runs for maybe a minute before crashing. Long enough to discover that I had plugged in the two external ports backwards (Murphys Law = if a thing can be installed backwards it will be installed backwards)and fried those two ports as well as a memory stick I was testing with.
Suddenly I remembered from some long distant set of discussions that the zorro 3 bus had timing issues in early model A4000s, and it occurred to me that my symptoms might match timing error symptoms. There is a "force zorro 2" jumper on the Deneb card so I set that and now everything works just as advertized. Well, two of the ports are still fried, but a powered hub gets me in to the remaining port just fine.
I probably need to upgrade my Buster chip, but I have not seen those on sale anywhere. Now I'm wondering if the problem I had with my Prometheus card last year (run 30 sec and crash) is the same issue. My question to the group is- would using a zorro 2 graphics card maybe get me up with RTG?
One more real Amiga still going!
CRL
