#rx

I built my pc and it wont power up. I tried different graphics card and it powered on. My graphics card is new but i bought it from a third party seller so i dont have warranty, should i open the card up or should i just sell it as a not working card. The fans are turning but there is no picture.

I bought an second hand rx 570 8GB and when i startgame in fortnite, gpu make one colored screen and then entire system crashes. So i tried furmark and unigine, but gpu went well there, as did half an hour of ethereum mining. I tried underclock memory, core and voltage, but nothing helped. I...