My PC is Completely Shutting Down Without Warning While Playing CSGO

[Senzuw]

Whenever I play csgo my computer just randomly shuts down, it's random when it happens because I can play one match and then start to play the next one and then it shuts down. Please help I have an AMD Radeon HD 8670D. I don't know what else you guys need since I don't really dabble in pc specs and tech really at all.

 

[James Mason]

Either your CPU/GPU is overheating or your PSU is dying and when the computer tries to draw too much power it dies on you.

 

[Senzuw]

I downloaded SpeedFan and did some test. My CPU was hitting 60-70c while playing. I limited the fps, turned down the quality, and set the resolution so 1280x720. It now only hits about 55-56c

 

[turkey3_scratch]

Full specs please?