- Feb 26, 2011
- ASUS PRIME X299-A II
- i9 10940X
- AMD Radeon RX 6800 XT
- Mobile Phone
Do you see any MSR settings in your bios? On my MSI X299 Carbon I have to disable MSR lock, but seems to work after that. If you have something like that, maybe disable, then change your config list to set AppleXcpmCfgLock to False? if you don't have that, then also set AppleCpuPmCfgLock to True as well? Might affect the NVRAM questions one way or the other.
Thanks - I've double checked those and I definitely have CFG lock disabled in bios, AppleXcpmCFGLock set to False - I tried the AppleCpuCfgLock both ways but its still the same every time.
Im going to upgrade to Opencore 0.6.4 latest on a separate USB and see how that fairs...
(actually I tried that already but just get "OCB Image failed to load!" so I don't think it set up properly, I'll rebuild a new clean EFI based on OC 0.6.4 and make sure it works fine with Catalina before trying it on the Big Sur installer)
Still suspecting no NVRAM is messing with secure boot or something, so may need to revisit that.