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legacy imac

  1. W

    GPU Bios/flashing help needed

    I have a 2011 27" iMac i7 3.4GHz 12,2 which I want to put a Metal AMD GPU into so I can upgrade the OS with OCLP. I'm very comfortable mechanically and I have stripped out the machine several times before to upgrade the HDD and SSD, as well as bake the old GPU (HD6970M) when its failed over the...
    • Whistlejacket
    • Thread
    • 2011 27" imac flash bios gpu card installation legacy imac metal oclp vbios wx4150 wx4170 wx7100
    • Replies: 0
    • Forum: iMac
  2. RustyBl0ck

    iMac 27" Late 2009 Nvidia 780m Upgrade

    Hi! I am trying to install an Nvidia 780m GPU for the iMac 11,1. I would like OpenCore Legacy Patcher with Big Sur compatibility. I would like Native Brightness Control, and also compatibility for external display. I would also like to be able to use the actual display on the iMac instead of...
    • RustyBl0ck
    • Thread
    • 780m in imac legacy imac nvidia 780m
    • Replies: 5
    • Forum: iMac
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