Need help with a new GPU problem

myFRAGisFUBAR

Honorable
Nov 2, 2013
10
0
10,510
Hey everyone. I am new here so if I am in the wrong place I am sorry.

So I bought a barebones kit about a year ago and a friend putit together so Im not positive on all the specs but I will do my best.

I recently bought a new graphics card. its an nvidia geforce gtx 650Ti. I installed it myself and everything appears to be fine. The problems start when I try to play battlefield 4. After around 15 minutes my entire PC shuts down. I thought it was a heat problem but it only gets to 45C before cutting off. Now I am lost at what causes this. My PC runs fine if I watch movies, type documents, or even play older games. I am lost on what to try next. Any help is appreciated.

My specs are listed as best as I can: i7 quad core, ASUS P8Z77-V Motherboard, Nvidia gtx650ti card,