Hey everyone, I've recently built my first computer but have had an issue with the system crashing. When I try to load a game, csgo for example, as soon as I am loaded into the game the display will be cut, and the computer will restart. It takes a couple restarts until it turns on and when it's loaded back up I get the error failed to load dlls, please install vga drivers. I've attempted to download the drivers off of asus website for my gpu but it still has not helped. I don't know if I'm just doing it wrong or what since this is my first build and I'm still new to the process. Any help would be appreciated, thanks for your time.

Build as follows
I7 47790k with cooler Master 212 Evo cpu cooler
Msi z97 gaming 5 atx lga1150 mobo
Gskill sniper series 16gb(2x8) ddr3
Samsung Evo ssd 250gb
Western digital hdd 1tb
Asus GeForce gtx 980 4gb strix gpu
Corsair 750w psu