#2091 vs ICD 2080 RAM
5 messages in this thread
Does anyone know why a friend of mine can't run both his 2091 strapped for
0M or RAM and an ICD 2080 RAM card at the same time in his machine? The
machine seems to run fine with either one, but not both. He gets random
crashes, though every memory diagnostic I can find comes up clean.
Thanks,
Karl
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Hard to diagnose something like this online. Are the cards in the same
slots when tested independently? How much RAM is installed on the boards?
At what addresses does the test program show the ram?
It may be quicker for your friend to call technical support voice during
the week and talk to chris.
Craig
Craig,
Thanks for the reply; I didn't realize you guys were on-line here.
Yes, it is hard to diagnose online, due to non-interactivity. I'll
probably be the one to call you guys, though, since the owner is a
brand-new Amiga owner (who keeps making comments about how well the Atari
worked that I convinced him to give up for a 2000HD!). I've been doing most
of the troubleshooting anyway.
Until you send me your tech support number, here's the poop:
No, the boards were in different slots when tested independently. The
2091 has always been in the first slot to the left of the accelerator slot,
but the RAM board has been tested in different slots, but never in the same
as the 2091 slot. I've made sure that the 2091 is jumpered for 0M, and
we've tried 2,4, and 6M combinations in the AdRAM2080, changing the jumpers
accordingly. Your supplied RAM tests pass. All RAM testers that I can find
pass too. The system works dandy if only one of the boards is installed,
but not if both boards are installed. All "special" stuff has been removed
from the user-startup (it was deleted) and the WBStartup subdirectory. The
results are the same. Random hits, causing lockup of the system, sometimes
followed by 800…..03 gurus. Can find no correlation between activities
and crashing: it can be while in a shell or running a Shell, or an
animation, etc. Weird. I would LOVE to find someone with a RAM board they'd
loan me for a quick test, but can't find anyone. The AdRAM2080 APPEARS to
work in my 2000, but since it gets stuck up in the top 2M of the map, I'm
not convinced it's an equivalent test, though a RAM tester said it was
fine. We'll have to run your tests again to find out where it finds the
RAM; I didn't write it down.
Early on, we found a pin bent under on one of the chips, but all chips
have been removed and inspected, and even swapped into each other's slots,
since the additional 4M he bought was a different manufacturer, though same
speed. I'm out of ideas. Thanks again for the reply, and we're looking
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forward to your phone number.
Karl
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