HELP! I got a R290 Tri-X

Discussion in 'Mac Pro' started by radeon290, Mar 7, 2014.

  1. radeon290 macrumors newbie

    Mar 7, 2014
    I bought a Sapphire R290 Tri-X recently together with a seasonic 450 watt PSU.

    I plugged in the PSU, connected the 6+8 pin from the PSU to the GPU and replaced my old GPU , a 4870, with the R290.

    Now I don't get any video signal when I start up , and even after the start up (1-2 min later on) I dont get any video input!

    Is the card broken? Is my logic board broken?

  2. N19h7m4r3 macrumors 65816


    Dec 15, 2012
    It's not support and there are no drivers for it. Return it if you wanted it to work with a Mac Pro.

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