Guest Mac Jack 7 Posted December 6, 2024 Posted December 6, 2024 Hi, I have been working on upgrades for my old Mac Pro 5,1 mid 2010. I purchased an open box Sapphire Pulse RX580 GPU and when I boot up, there's a black screen. The GPU fans are running and I get the chime but no screen. Is this because I'm using my old OS 10.9.5 with the new Sapphire Pulse? Do I need to have OS High Sierra 10.13.2 in order for the computer to see the new GPU? (The GPU is on Apple's METAL supported list.) So far I've upgraded from quad core to six core, replaced the... Read more Source: MacRumors
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