Whenever playing any applications that requires high graphics performance especially games like Left For Dead 2, for a certain period of time, my system suddenly shutdowns down. It feels like power has been cut off all of a sudden.

I am not sure as to what the cause of the problem exactly is. But it occurs with radeon module. It does not happen with catalyst, but I can't use catalyst it has problem with rendering.

One thing I notice is that temperature is very high during this stage. 

Could it be due to a bug in which the frequency clocks are transitioned in the GPU? Or simply due to overheating? Note that this does not occur with windows driver.


I have a AMD A6-4400M APU with Radeon HD 7520G]