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5,1 Mac Pro updated to Catalina 10.15.4/ Gigabyte RX 5700XT OC with bootsceen thanks to opencore. So far so good. : r/macpro
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12-Core Apple Mac Pro 5,1 CPU Upgrade Kit Intel X5690 Pair 3.46GHz 2010 2012 5.1 7330381789366 | eBay
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Updating the Mac Pro 5.1 in 2021. Episode 2: getting an “accelerated” Catalina. | by Giovanni Minelli | Mac O'Clock | Medium
Obsolete, Use OpenCore instead | What you need to do to make Catalina work with MacPro5,1 | MacRumors Forums
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