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  1. Duncanc

    Black screen on startup / recovery not accessible

    Looks like my Sapphire 580 Pulse GPU has fried in my Mac Pro 5.1 2010. It was running fine on Mojave 10.14.6. Then I put in these two Sonnet cards: Allegro USB-C 4-Port PCIe Card Fusion Dual 2.5-inch SSD RAID card Note: the Fusion Dual card is designed to have 2 SSDs on it, which it can...
  2. Duncanc

    Black screen on startup / recovery not accessible

    My spec: Mac Pro 5.1 2010, 6-core 3.33. Hi, I’m hoping you can help - my computer knowledge is basic, but think my Radeon Sapphire 580 Pulse GPU might’ve died! I had the 580 running ok for a couple weeks. I’d updated from High Sierra to Mojave 10.4.6 on a boot camp partitioned make sure it...
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