Breathless Posted August 18, 2011 Share Posted August 18, 2011 Perfectly working Lion installation with a GTX 280 (EFI String method). The only change?.... upgraded to a Asus GTX 580. Then I get this error with seemingly no workaround (I googled possible solutions or workarounds for the error, such as plugging / unplugging USB, AHCI, CPUS=1, Graphicsenabler y/n, -x -f -v, etc - all dead ends). DSDT Autopatched for Asus Rampage Formula X48. Again, PERFECTLY working system until upgrade. Reverting to GTX 280 fixes the error. Any ideas? Link to comment https://www.insanelymac.com/forum/topic/265853-lion-gtx-580-upgrade-produces-ioapic-version-0x20-vectors-error/ Share on other sites More sharing options...
Breathless Posted August 20, 2011 Author Share Posted August 20, 2011 It was my DSDT, strangely enough.... As soon as I removed my DSDT and tried to boot without a DSDT I had no issues. Hope this helps someone else Link to comment https://www.insanelymac.com/forum/topic/265853-lion-gtx-580-upgrade-produces-ioapic-version-0x20-vectors-error/#findComment-1737456 Share on other sites More sharing options...
NeoNihilist Posted August 30, 2011 Share Posted August 30, 2011 It was my DSDT, strangely enough.... As soon as I removed my DSDT and tried to boot without a DSDT I had no issues. Hope this helps someone else Huh? How can you do without a DSDT? Please help, I have a 580 coming and I'm struggling. How did you do? Do you mean you now have a fully supported 580 in Lion? How do you do? Link to comment https://www.insanelymac.com/forum/topic/265853-lion-gtx-580-upgrade-produces-ioapic-version-0x20-vectors-error/#findComment-1742177 Share on other sites More sharing options...
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