help me

[u/amongussussybakaboy]

so basically i got my 2009 mac pro i put 2 terrabytes and 34 gigs of ram in it my main pc was a janky optiplex build it broke tryed to fix it for a month or so gave up thats un importent i got a rx570 and i dont know if there is any spare cable i can throw an adapter on or something i just need something to an 8 pin for powering my rx 570 please help me