@quaczek666
I did some more search on the net. It looks that your video card is a Mannajue branded RX580 2048. I found its original rom and also a GPU-Z screenshot that match your card (in the attachment). You may try the attached rom and see if it works.
@myroslav
I'm a bit puzzled about your request. I've not encountered a video card that came with two versions of rom from the manufacturer/vendor. Is your posted rom one of the two versions of the original rom that you received with the your video card from the manufacturer/vendor? If so, is...
@vlabl
That's a topic too broad to offer suggestions on the forum, without knowing the details of your hardware. There could be several reasons why a black screen appears when loading macOS (I'm assuming you see the black screen when trying to start macOS). I would suggest that you begin with...
@Flipcq
It sounds something is wrong with your OpenCore config.plist file. With the original rom, your RX580/2048SP video card should be able to display and boot into macOS with no issues. It will show only 7MB vRAM, as illustrated by my screen capture below. Have you tried to boot to macOS...
Remove the existing AMD driver in Windows 10/11 by using this AMD driver removal tool: https://www.amd.com/en/support/kb/faq/gpu-601, restart the computer in Windows 10/11, and then install the AMD driver for RX570/580 by using AMD's driver detect and install tool: https://www.amd.com/en/support.
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