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Hi everyone, I would love to have boot screen support on my ASUS ATI HD7850, however I have not been able to find clear instructions how to do this for this card, just some forum posts stating that it should be possible. Does anyone around here know if that's true? If yes, can you give me or direct me to clear instructions to do it? OS X has no secrets for me, but I have no experience with firmware flashing at all. Thanks in advance:) System: MacPro3,1 - 2.3,2GHz - running 10.11.6 El Capitan.