Having trouble installing my gpu

Antonio Duenas

Reputable
Aug 7, 2015
3
0
4,510
Hi, so I'm trying to build my first computer and I don't know what the devil I'm doing. I managed to install everything even windows, but when I tried to play "GTA 5" something weird happened and I can't play it because it moves really slow like 1/4 fps and when I go to graphic settings it doesn't use the memory from my gpu but instead uses my HDD's memory... I think I messed up in the gpu connection and I don't know what to do, please, someone help me!!
I am using an Asus M578L-M uSB3 mother board, a corsair CX 600 psu, and a powercolor r9 280x.