How do I figure out what's causing my computer to freeze and restart?

[reddrt5]

Alright after removing the driver using SPTD I'll open my case and give it a clean and check the fans are working.

I am not overclocking my PC and I've just downloaded hwinfo and found out that my temperature is over 90 degrees

 

[Pauly]

Yeah that's pretty high is the machine isnt loaded, not sure what the exact limit is on your particular CPU but generally when you get around 90-100 degrees the machine will start throttling back the cpu to attempt to control the temp and if it goes beyond this anything can happen as you have seen