issoeocio Posted January 3, 2019 Share Posted January 3, 2019 (edited) Historically we had a problem with the BIOS upgrade to the 3xxx series. The upgrade broke audio and the standard solutions to enable it. The old workaround was, like to the P67's: Asus P67H67 3xxx BIOS: Phantom codec Workaround: 2xxx BIOS downgrade, 7/8 Series motherboard upgrade or use VoodooHDA (that have the problem with the low or crackling sound). I've managed to get my sound working with the 3xxx bios series in the P8P67 EVO: The solution is to edit the AppleHDAController, in IONameMatch insert pci8086,1c20 in the BuiltInHDA9D70 propriety and use AppleALC. I don't know if is the best solution, but it worked here. Edited January 3, 2019 by issoeocio Link to comment https://www.insanelymac.com/forum/topic/337094-alc892-p8p67-evo-with-bios-3xxx/ Share on other sites More sharing options...
toleda Posted January 16, 2019 Share Posted January 16, 2019 See https://www.insanelymac.com/forum/topic/276380-the-inevitable-p8p67-pro-install-guide/?do=findComment&comment=2657616 Link to comment https://www.insanelymac.com/forum/topic/337094-alc892-p8p67-evo-with-bios-3xxx/#findComment-2659396 Share on other sites More sharing options...
issoeocio Posted February 8, 2019 Author Share Posted February 8, 2019 Thanks, toleda. The Krazubu's solution came 3 days later and it's much better. Thanks again. Link to comment https://www.insanelymac.com/forum/topic/337094-alc892-p8p67-evo-with-bios-3xxx/#findComment-2663283 Share on other sites More sharing options...
Krazubu Posted February 9, 2019 Share Posted February 9, 2019 Hi, I had missed this. Still a nice find, this can save from flashing BIOS, and may be patched from clover. I have all the hardware stuff to ruin and restore my ROMs but not everyone does. I wish we both had found these years ago. Link to comment https://www.insanelymac.com/forum/topic/337094-alc892-p8p67-evo-with-bios-3xxx/#findComment-2663312 Share on other sites More sharing options...
issoeocio Posted February 9, 2019 Author Share Posted February 9, 2019 I prefer your solution. I tried to patch it from Clover, but I could not make it work. So I always had to patch manually with: sudo sed -i '' 's/<string>pci8086,9d70/<string>pci8086,1c20/' '/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAController.kext/Contents/Info.plist' The Clover patch that I tried was: AppleHDAController find: 093C7374 72696E67 3E706369 38303836 2C396437 303C2F73 7472696E 673E replace: 093C7374 72696E67 3E706369 38303836 2C316332 303C2F73 7472696E 673E and InfoPlistPatched ticked. But I don't know why it not worked. Link to comment https://www.insanelymac.com/forum/topic/337094-alc892-p8p67-evo-with-bios-3xxx/#findComment-2663360 Share on other sites More sharing options...
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