Auto Restart - when play games

[Catbert]

Checked to see if it a heating issue ?

 

[madking153]

impossible - is not the heating problem
i even underclock my Processor

 

[Osiris]

Do you have all updates?

 

[madking153]

i just updated my BIOS - i think is it cause the problem ... how can i change it back to the old BIOS ?