PC won't boot. Custom Build. Help.

Gomgle

Reputable
Dec 17, 2015
3
0
4,510
CPU- AMD FX-8350
GPU- GTX 970 G1
Ram- 8 gigs DDR3
PSU- 650w EVGA
Cooler- Corsair liquid cooler (forgot the name)
I have an SSD and an HDD.

Okay so a few weeks ago when I bought COD Black Ops 3, I noticed my PC would literally become "disabled" after I played for over 10 minutes. The computer wouldn't shut down, but it would just stop rendering and freeze the screen, not letting me Ctrl-Alt-Delete or anything. Up until last week it started just shutting down my computer completely without restart. So I took apart my computer to see if there were any loose cables or components. There weren't. So up until around 5 minutes ago after I put it back together, it won't even boot. I'm very confused as to what could have caused this sudden down hill performance lose. If any of you have an idea that might be able to fix this issue please let me know! I spent a lot of money on this computer!