pastrychef
Moderator
- Joined
- May 29, 2013
- Messages
- 19,462
- Motherboard
- Mac Studio - Mac13,1
- CPU
- M1 Max
- Graphics
- 32 Core
- Mac
- Classic Mac
- Mobile Phone
If there are no other ideas, I will have to erase the HD and try Sierra or El Capitan and then to the garbage pickup next week.
Sierra might be easier. I know that there were lots of changes in High Sierra to add support for eGPU. The EFI that you've been able to boot with using Inject EFI Strings should work...