- Nov 6, 2010
- Gigabyte Z390 Designare
- Radeon VII
- Mobile Phone
Crazy. I updated the BIOS, booted with your EFI and I still get the slow rendering and barely-used GPU in Geekbench. I have no idea anymore.Once you get into the correct BIOS, also change MISC/Security from j137 to "Disabled" in the config I sent you.
I even tried Casey's EFI with iMac19,1 (turned the iGPU back on) and it's the same.