Guest h9826790 Posted November 19, 2021 Posted November 19, 2021 *** Do NOT attempt to do this on your MVC flashed RX580 regardless if that's the Sapphire PULSE RX580 8GB or not *** *** This mod CANNOT make any RX580 shows boot screen *** Forum member Teddy managed to get a Sapphire PULSE RX580 8GB card. But the part number is changed already, so, can't identify itself correctly in MacOS (technically speaking, we can't really see the part number in MacOS, but if it's "right", High Sierra should able to recognise this card. Therefore, the R9... Read more Source: MacRumors
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