my PC turned off suddenly

my PC turned off suddenly

And!

This could be caused by many different things. Did you receive any error messages? Has the problem repeated? What were you doing when this occurred? There are many questions to be answered. My computer shut down doesnt give us any idea what could have caused this.

my PC turned off suddenly

You don't really expect some help with this much input?

limit cpu from the system solved the problem:-/

limit cpu from the system solved the problem:-/

please elaborate ,for the greater good of mankind