HELP! I got a R290 Tri-X

[radeon290]

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?

HELP!!!

 

[N19h7m4r3]

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