Screen goes black and then computer restarts

[OGChan1]

When I play games or surf the internet my screen goes black, but the monitor is still working and after minute or so the computer restarts.There is no BSOD or anything. If you can help me I will be grateful

 

[Makentox]

Need component info
Have u overclocked anything?

 

[OGChan1]

Need component info
Have u overclocked anything?

I haven't overclocked anything at all.

 

[Makentox]

component info, need to see if all is compatible at least