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So, at this point, who's still stuck with a non working and not solved Cumulus<->Oric situation. I know Peacer was still having issues, could any of you who is still stuck post a new message summarizing the issue, and indicating: - Type of Oric (Oric 1, Oric Atmos, Oric 1 converted to Atmos, Atmos ...

So the Oric is powered throught the expansion bus no. the Cumulus is powered throught the expansion bus. I misread :oops: . Thank you very much for your clarification! I now includes discussions on the power supply. However I hope Cumulus/Cumulusbus have connectors BERG that would power them direct...

Indeed it seems that mod. I wonder what "improved initialization on power up" means. About your question, it is the cumulus which is powered from the Oric expansion bus. That is why the original PSU should be replaced by another able to give at least 1A. Ok. So the Oric is powered through...

In your pictures I see one strange connection between a pin in the ULA and ground with a resistor that does not appear in the usual boards. Hmmm... It looks like the Oric mod 63b for boot reliability. Please see the Oric Service Manual (page 72) @ http://www.48katmos.freeuk.com/projects.htm I have ...

Hi all,

2 for me sure, 4 if it's not too expensive! (EDIT: DONE)