The correct SMBIOS is important for DRM, ACPI, etc.
Usually the best option is to pick a SMBIOS of a real Mac matching your CPU, and then settle within that product family on one with a discrete graphics card or not. The model of the graphics card doesn't need to match necessarily but it helps...
My config.plist is attached to the post above and updated for OpenCore 0.6.8.
I would recommend you follow the Dortana Comet Lake guide instead of using my EFI. The main rationale is that there are major changes with each release.
My EFI looks as per the screenshot below.
There would be little difference apart from higher temperatures. You may need to reduce the voltage on the CPU as I needed to - as by default most motherboard manufacturers overclock the CPU excessively when the option is selected in the BIOS.
Also note that the Samsung NVME SSD's seem to have...
Follow the Dortana OpenCore USB mapping guide for Intel. After you have detected your USB ports, you will be able to set the port types.
The H115I usb port you have connected the AIO to should be configured as an internal USB port (type 255).
Lastly, generate a USBMap.kext from your mapping...
Build guide for my i9-10850K running on a GA-Z490M Gaming X using OpenCore 6.6 OpenCore 6.8 and Big Sur 11.2.3
Gigabyte Z490M Gaming X
32 GB RAM (4 x Corsair 8GB DDR4 3600 RAM)
Sapphire Pulse RX 580 8GB Sapphire Pulse RX 5600 XT 6GB
Corsair RM750 PSU
Corsair H115i Platinum...
I do, however I would recommend you create your own instead using the Dortana Intel USB mapping guide and the USBMap utility as I have mapped the internal USB ports to allow my water cooler and power supply metrics to be exposed.
The app and guide makes this very straightforward.
The following two approaches have worked for me in the past to recover my BIOS on Gigabyte boards.
Boot into Windows (if possible) and use the windows BIOS flashing utility.
If your motherboard supports DualBIOS or Backup BIOS, power cycle, wait a few seconds and restart holding the power...
This fixed the issue for me on my Z97MX-Gaming-5. I can now access my BIOS. Thank you @Henties !
For anyone else with a similar issue - note that you must change the setting in OpenCore, reboot and reset your NVRAM before the new setting takes effect as per the OpenCore documentation note under...
This seems to be a known issue on Gigabyte Z97 boards with OpenCore. You should be able to revert by flashing your BIOS using the QFlash utility which is accessible by pressing the END button as your computer starts. You'll need a MSDOS formatted USB with the latest BIOS from your motherboard...