Help with Sapphire Radeon R9 390 Nitro!!

Hi, I have a problem that my card wouldn't work properly..

If I run system from USB Bootable key, then for graphics it would say: display 7 MB..

If I run system from Clover Bootloader from EFI on disk then it depends on "config.plist" file in that EFI..

I already tried (in "config.plist" with Clover Configurator):

everything that slead wrote here

so:

• Under Devices Fake ID = 0x67b01002

• Under Graphics Check Inject ATI, Load VBios

• Under Graphics FB Name = Radeon

• Tried to set with Port: 04 and without it and its the same..

If I run it like that I get to Apple logo and then I get black screen after Apple logo loading,

If I leave Fake ID as 0x0 then I get stuck at Apple logo in the middle of loading,

If I uncheck Load VBios then I get the closest.. it says Graphics: AMD Radeon R9 290/390 7MB

I have Xeon CPU, so no integrated graphics..

If I set in BIOS to use iGPU then it automatically switches to R9 390, because it is only graphic output (I assume).

Can anybody help me?

Just ask me what more you need and I can post some pictures and info..

At this point I’m just desperate to make it work ! :D

Also RAM and Startup disk is shown correctly, and CPU is shown as 3,4 GHz Intel Core i7, so it’s kinda close.. Sistem is laggy during transitions (like when you open Lounchpad) and overall isn’t smooth.

My system:

Motherboard: MSI Gaming 5

CPU: Intel Xeon E3-1231 v3

Disk: Samsung 128GB SSD

Ram: 16GB DDR3

GPU: Sapphire Radeon R9 390 Nitro 8GB