I received my brand new R9 390 yesterday and spent hours trying to get it to work with my PC, but I just couldn't get it to work.
When the card is installed and I turn on the machine, all the lights inside the machine and on the card light up, but I get absolutely nothing on my monitors, and none of my USB devices light up.
I thought this may be an issue with my PSU but at 600W there should be no problem at all.
Could this be a broken card? Has anyone experienced anything similar to this with any kind of card? I'm DESPERATE for it to work!