Mac OS 9 Lives
Digital Audio Workstation & MIDI => Audio & MIDI Hardware => Topic started by: redstudio on September 06, 2025, 10:33:57 AM
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4 UAD1 in OS9 crash system
I installed Magma with MDD computers, three systems: 10.4, 10.5, and OS9. With 4 cards, OSX works perfectly, but it crashes in OS9. With three cards, it works perfectly, but 4 doesn't. I tried swapping the cards, but nothing changes. Software version 3.9 should handle them. Extension conflict? I have no idea. Can anyone give me some suggestions? Does anyone have 4 UAD cards in OS9 and they work? Let me know.
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I only did a max of 2 (UAD-1 Mackie version) and a single Power Core or 2 Power Cores.
I think you might be either
1) Maxing out what the software was designed for
2) Hitting a PCI bus mastering ceiling or DMA conflict, since I believe those cards are bus mastering
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I don't think it's the master bus otherwise it would give me problems even OSX. In OSX I tried to make some test songs overloaded with both UAD and Powercore plugins (I have 2) and they didn't give me any problems. I tried the Makie software in OS9 but it works with a maximum of two. In OS9 with software 3.9 in "configuration" it gives me 4 slots to use so the software allows for a maximum of 4 cards..uhm..a mystery. Yes, you could say "use 3 which is enough" but I'd like to understand where the problem is..let me know
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it could be a difference caused by the OS which affect the PCI bandwith.
does it happen with the current project? or did you also try it with only 1 plug-in yet.