Good eye! I forgot I had that.Flashed E7D251MS.120. Made the appropriate changes to the BIOS. -wegnigpu boot argument removed. No difference. Could SSDT-PLUG-ALT-12700K.aml be causing the problem (no idea what it does)?
You'll need to clear your nvram. Press spacebar at the boot picker menu (where you select macOS) then select reset or clean nvram. Likely when it restarts it will fail. Thats a quirk, just manually restart your computer after that.Nope. Didn't work.
Attached is OC088. I've disabled Thunderbolt related stuff along with disabling CPUDATAPROVIDER. Add only your serial. Warning, it will try to boot EFI instead of macOS. Make sure you toggle over to macOS.Any other ideas?