Sapphire RX 580 and Catalina 7mb/8mb VRAM !!

[oli.mathieu]

Hello
I'm helping a friend with his Hackintosh
Motherboard Supermicro with Z370 chipset
CPU : i7 8700
RAM : 2x16 GB
BIOS : default setting with vt-d disable

I have latest WhateverGreen and Lilu Kexts I'm the Other Folder of the EFI Partition
Here's what System info show :

Here's what Hackintool PCI shows :

I' tried many thing without success
- (des)activate de IGPU
- Inject ATI with(out) RadeonDeInit
- 8.1, 18.3, 19.1, 19.2 Smbios

If you have any idea, it would be appreciate
Thanks in advance

 

[pastrychef]

Hello
I'm helping a friend with his Hackintosh
Motherboard Supermicro with Z370 chipset
CPU : i7 8700
RAM : 2x16 GB
BIOS : default setting with vt-d disable

I have latest WhateverGreen and Lilu Kexts I'm the Other Folder of the EFI Partition
Here's what System info show :
View attachment 445925
Here's what Hackintool PCI shows :
View attachment 445924
I' tried many thing without success
- (des)activate de IGPU
- Inject ATI with(out) RadeonDeInit
- 8.1, 18.3, 19.1, 19.2 Smbios

If you have any idea, it would be appreciate
Thanks in advance

Do not Inject ATI.
Do not enable RadeonDeInit.

 

[oli.mathieu]

Do not Inject ATI.
Do not enable RadeonDeInit.

Thanks
I did with and without (both)
Other tests (Smbios) have been done without
Any other ideas ?
Thanks again

 

[Gigamaxx]

Is there a dual bios switch on the card? Is it set halfway between a or b?

 

[oli.mathieu]

Is there a dual bios switch on the card? Is it set halfway between a or b?

I have no clue> I will check ASAP
Thanks

 

[Gigamaxx]

Device ID 0x6FDF? Shouldn’t it be 0x67DF?

Check the clover boot menu using cursor to go to Options then to graphics settings. Check the device ID, if it lists as 6FDF then try fake ID 0x67DF1002. I just checked there is no 6FDF in info plist so hopefully that Id is not real. If so it may be needed to flash the bios for OS to work.

 

[oli.mathieu]

I have no clue> I will check ASAP
Thanks

No dual BIOS, just a recovery Jumper. but it is in the correct position

 

[pastrychef]

Thanks
I did with and without (both)
Other tests (Smbios) have been done without
Any other ideas ?
Thanks again

Please post your EFI folder.

Also, have you tried disabling CSM in BIOS?

 

[Gigamaxx]

Check out this thread, is this a Chinese RX 580 2048sp?

Rx 580 2048sp compatibility at mojave | tonymacx86.com

 

[oli.mathieu]

Check out this thread, is this a Chinese RX 580 2048sp?

Rx 580 2048sp compatibility at mojave | tonymacx86.com

Thanks a lot, I read that
That the same model, not compatible with macOS OOB
Seems the only solution is to Fake ID.....