Gigabyte Z390 M Gaming build with working NVRAM

Three reboots and ~30 minutes. I'm on OpenCore 0.6.6.

Hey Chef I tried removing dGPU and got your recent clover 5129 to boot and working nice - but Big Sur only - after including frame buffer device properties from the post #4 plist. The same EFI doesn’t boot my Catalina - I’m not concerned with Catalina really but I did want to try to install High Sierra if possible using iGPU and/or an old nvidia 1050 (that I’ve used in a previous hackintosh). I can’t get HS installer to boot using same EFI (I did remove USBPorts kext but that was it) with iGPU only or with the 1050 installed.

Any pointers to getting HS to installed, with or without the 1050? I see lots of info in this thread, but many EFI solutions seem old and perhaps not compatible with one another’s plist’s (and from what I can gather, I should be moving post #4’s plist somewhere, instead I tried to copy it’s info but couldn’t get it to work). Thanks!

Edit: I was trying iMacPro1,1

fFour said:

Hey Chef I tried removing dGPU and got your recent clover 5129 to boot and working nice - but Big Sur only - after including frame buffer device properties from the post #4 plist. The same EFI doesn’t boot my Catalina - I’m not concerned with Catalina really but I did want to try to install High Sierra if possible using iGPU and/or an old nvidia 1050 (that I’ve used in a previous hackintosh). I can’t get HS installer to boot using same EFI (I did remove USBPorts kext but that was it) with iGPU only or with the 1050 installed.

Any pointers to getting HS to installed, with or without the 1050? I see lots of info in this thread, but many EFI solutions seem old and perhaps not compatible with one another’s plist’s (and from what I can gather, I should be moving post #4’s plist somewhere, instead I tried to copy it’s info but couldn’t get it to work). Thanks!

Click to expand...

Do not use the DeviceProperties from post #4 unless you are using IGPU only.

Catalina should work fine. Please boot in verbose mode and post a photo of where it stops.

With High Sierra, you will probably need to use an older system definition. Maybe iMac17,1.

I suggest not trying with the GTX 1050 until you have macOS installed. If/when you try to boot with the GTX 1050, you will need to add "nv_disable=1" (without the quotes) boot argument.

Awesome, so for High Sierra then, 5129 EFI with iMac17,1 with iGPU and should I add frame buffer data from somewhere? Copy from my Big Sur EFI that I got to boot with iGPU, or leave with none?

fFour said:

Awesome, so 5129 EFI with iMac17,1 with iGPU and should I add frame buffer data from somewhere? Copy from my Big Sur EFI that I got to boot with iGPU, or leave with none?

Click to expand...

You can add ig-platform-id and device-id to DeviceProperties. If you are going to use iMac17,1, you should probably spoof Skylake or Kaby Lake IGPU which would be 19120000 and 59120000.

pastrychef said:

You can add ig-platform-id and device-id to DeviceProperties. If you are going to use iMac17,1, you should probably spoof Skylake or Kaby Lake IGPU which would be 19120000 and 59120000.

Click to expand...

Thank you Chef! Is that
APPL,ig-platform-id = 19120000 and APPL,device-id = 59120000, both under PciRoot(0x0)/Pci(0x2,0x0)? I wasn’t sure about the second one because I don’t see that entry device-id on the one I was using for Big Sur.

pastrychef said:

Well, I took the first step towards retiring one of my hackintoshes and returning to Apple made hardware... I took advantage of the current crypto mining craze and sold my Radeon VII for about twice what I paid for it. So, I'm back to my flashed Vega 56 Red Dragon for now.

Click to expand...

Unfortunately with my Gigabyte Radeon RX Vega 56 8GB OC Gaming I can't make mod for Vega 64.

fFour said:

Thank you Chef! Is that
APPL,ig-platform-id = 19120000 and APPL,device-id = 59120000, both under PciRoot(0x0)/Pci(0x2,0x0)? I wasn’t sure about the second one because I don’t see that entry device-id on the one I was using for Big Sur.

Click to expand...

No.

19120000 = Sky Lake
59120000 = Kaby Lake

Use one or the other, not both. Don't mix and match them.

Example, if you decide to spoof Sky Lake, use:
ig-platform-id=00001219

LiveSorcerer said:

Unfortunately with my Gigabyte Radeon RX Vega 56 8GB OC Gaming I can't make mod for Vega 64.

Click to expand...

Yeah. It was very much based on luck whether or not the Vega 56 cards purchased were able to be flashed.

pastrychef said:

No.

19120000 = Sky Lake
59120000 = Kaby Lake

Use one or the other, not both. Don't mix and match them.

Example, if you decide to spoof Sky Lake, use:
ig-platform-id=00001219

Click to expand...

Thanks! I got HS installed using iGPU but after trying 1050 with nv_ disable=1 and deleting platform-id I’m met with