XFX Radeon R9 390 DD Black Edition AMD Graphics Card 8GB

[lidas]

I wanted to know if this card works with sierra XFX Radeon R9 390 DD Black Edition AMD Graphics Card 8GB

 

[Fl0r!an]

It needs a FakeID and some other workarounds, have a look at the big Radeon Thread. XFX make might also be troublesome, they have an impressive track record of making incompatible cards.

 

[kpmgeek]

Have the same card, you need to load the Sapphire VBios via EFI and only a single monitor works. Plus you need the sleep workaround.

 

[jbravo14]

Have the same card, you need to load the Sapphire VBios via EFI and only a single monitor works. Plus you need the sleep workaround.

Still could not make this work with Sierra, can you share your steps on how you got this working?

 

[Fl0r!an]

Sierra additionally needs iGPU=Primary.