- Joined
- Jul 21, 2016
- Messages
- 367
- Motherboard
- Gigabyte Z690 Aero G
- CPU
- i9-12900K
- Graphics
- RX 6800 XT
- Mac
- Mobile Phone
Good idea. The EFI can be downloaded from HackinDROM, which will ensure a high degree of consistency.
@CaseySJ
I installed a virgin Big Sur 11.4 on an external drive. Using your BIOS setting, internal graphics disabled, board Ethernet and WiFi are still disabled, Apple Ethernet works.
I will try HackinDROM, which will be a new adventure, to generate a new EFI folder to test.
EDIT:
Since I live in the "country" with glacially slow HughesNet satellite internet service, and the tiny HackinDROM app file is going to take 8 minutes to download, I took CaseySJ's EFI file for OC 0.7.0 and modified it for this experiment.
I added in the new SSDT Thunderbolt file, and the SSDT-DMAC file to ACPI, entered my Platform Info, disabled DisableIoMapper, and removed dart=0.
Booted from this new EFI folder with the BIOS set with CaseySJ's settings, and with internal graphics disabled.
Nothing changed -- board Ethernet and WiFi are still disabled, and Apple Thunderbolt Ethernet is active.
I also changed the TB3 to TB adapter for the Apple TB Ethernet adapter from a Cable Matters to an Apple TB3 to TB adapter which made no difference.
This pretty well exhausts all the differences between my and CaseySJ's systems, except for the CPU model.
This is the end of my attempts. The "mad scientist's" experiment failed until somebody comes up with another idea.
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BTW I finally got the HackinDROM app downloaded. The icon would momentarily appear in my menubar and then disappear (crash?) So I gave up on trying to use it.
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