- Joined
- Oct 4, 2018
- Messages
- 1,462
- Motherboard
- Gigabyte C246-WU4
- CPU
- E-2278G
- Graphics
- WX7100
- Mac
Short update: UEFIPatch can unlock MSR E2h and 1AAh on any of firmwares F5 to F8 for the C621-SU8 motherboard.
I have not succeeded to boot on firmwares F5 and F6. Firmwares F7 and F8 can boot with CPU wrapping (and SSDT-PLUG on the fake CPU objects). An SSDT-PMC as used by OpenCore on Z390 systems provides native NVRAM and allows to install Big Sur! Installers for Mojave and Catalina do not work, but it is possible to boot a system installed on another machine.
I have not succeeded to boot on firmwares F5 and F6. Firmwares F7 and F8 can boot with CPU wrapping (and SSDT-PLUG on the fake CPU objects). An SSDT-PMC as used by OpenCore on Z390 systems provides native NVRAM and allows to install Big Sur! Installers for Mojave and Catalina do not work, but it is possible to boot a system installed on another machine.