my pc restarting and crashing

Hi,

I have a problem. By pc sometimes crashes. I do something and then it simple stopes: colorful stipes apears in the screen and sometimes sound apears too.

But more often my pc restarts.

Maybe someone knows what could cause this?

Thanks

No blue screen.

Id say your PSU is dying or your machine is overheating..be it dust clogged in the PSU/heatsinks or no ventilation.. gfx card maybe..

and what about blue screen? because it happend. hard drive maybe?

and what about blue screen? because it happend. hard drive maybe?

Shiennn

It doesn't happens very often. but I remember something about dumping physical memory or something like that.

yes, something like that. what does that means?