Sorry for late response,i needed to quick mod cpu cooler(cpu fan broke,so needed to put a fan case,it didn t fit with the brackets,so i use zipties..),gpu-z says its a legit card,but,when i click lookup..it sends me to rx 470 4gb model,but,i can use all the 8 gigs availble,,so really,i don t know,i disabled fast startup from windows,in bios i can t find it,but how in the name of holly water,with a gtx 780 shows splash screen,and with an rx 470 don t appear..