I've bought a Sapphire Nitro Fury to replace my HD7870 2 weeks ago and one week ago, it started to flicker. It is just one black flash, sometimes white.
I've verified the cable and it's good, wattage is good too. I also reinstalled the drivers and installed one former driver to see if it was the newest one who was buggy but it didn't work.
GPU : Sapphire Nitro Fury
CPU : FX8150 3.6 GHz
8 Go DDR3
I don't know what to do right now, I think I'll just refund my card. What do you think please?