Hello Guys:
I have a Problem with Mac Pro 4.1(5.1).
I have flashed 2x Graphic Cards wit mac EFI ROM to have a Boot Screen:
MSI R9 280 GAMING 3G
MSI R9 280X GAMING 3G
Both Graphic Cards works very good in MacOS Mojave, but as soon i start Windows 10 on the Mac Pro, i get a black Screen and...
AS REQUEST OF EXPÉRIENCED MEMBER, I'D LIKE TO MENTION AT THE BEGINNING, THIS TOPIC IS BASED ON MY OWN TEST, I BOUGHT THESE CARDS, MAKE EFI ROM DIRECTLY ON NETKAS SCRIPT, WITHOUT ANY OTHER MODIFICATIONS, AND FALSHED BACK THEN TESTED ON MAC PRO 5.1, 3.1, SO THIS IS AND ONLY IS A PERSONNAL ADVICE...