Kernel Panic with R9 290X GPU

[Jamesbond007]

Thanks for your reply. Yes, I'm willing to try UEFI BIOS. Do I have to reinstall macOS if I do that or just Clover?

re: CPU - that's interesting. This CPU is compatible with the motherboard with the newer BIOS that I have. Would there be something that prevents macOS from taking full advantage of the CPU?

There should be no need to reinstall MacOS. Just reinstall Clover using UEFI mode. I suggest you make a new Unibeast USB boot stick using UEFI boot mode before you do the UEFI BIOS upgrade. Also remember to set the BIOS settings again after the UEFI BIOS upgrade.

I know that the GA-Z68A-D3H-B3 motherboard should work with Ivy Bridge CPUs with the latest traditional BIOS. However, Apple may not have used such a configuration in its Macs previously, and that might be a reason why you are seeing the "Unsupported CPU" and "Unsupported PCH" messages.

 

[logik]

Flashed to UEFI BIOS, reinstalled High Sierra and it won't boot. No GPUs plugged in right now, getting ACPI error namespace lookup failure:

 

[Gigamaxx]

There should be no need to reinstall MacOS. Just reinstall Clover using UEFI mode. I suggest you make a new Unibeast USB boot stick using UEFI boot mode before you do the UEFI BIOS upgrade. Also remember to set the BIOS settings again after the UEFI BIOS upgrade.

I know that the GA-Z68A-D3H-B3 motherboard should work with Ivy Bridge CPUs with the latest traditional BIOS. However, Apple may not have used such a configuration in its Macs previously, and that might be a reason why you are seeing the "Unsupported CPU" and "Unsupported PCH" messages.

I read the first post they mentioned deleting all the AMDkexts. A reinstall would help if you want AMD graphics.

 

[logik]

I read the first post they mentioned deleting all the AMDkexts. A reinstall would help if you want AMD graphics.

I've reinstalled and currently have no GPU plugged in. Just trying to boot with on-board graphics.

 

[logik]

I have the same motherboard myself and I have upgraded it to use UEFI BIOS

Would you mind attaching your config.plist or EFI folder? Might be very helpful - thanks!

 

[Jamesbond007]

Would you mind attaching your config.plist or EFI folder? Might be very helpful - thanks!

I have attached the config.plist I used previously on that system. I have already removed the GA-Z68A-D3H-B3 board and put it back in storage, and replaced it with an older GA-Z68P-DS3 (uses traditional BIOS) in my Legacy Build.

However, I must warn you about the differences :
(1) I have never tried to run High Sierra on that system, so the config.plist is that under Sierra, which works under Clover 4045. It may be quite different from a similar config.plist under High Sierra and a more recent version of Clover.
(2) I only used older Nvidia GPUs like GT 640 or GT 240 on that system and have never tried using an AMD card or CPU integrated graphics.
(3) The CPU I used on that system was a Core i5 2405S, which is a Sandy Bridge CPU matched to the Z68 chipset.