i have a radeon 520 in a notebook. i'm afraid it is overheating, because it is showing 60ºC when it is around 300mhz, and when it reaches 1030mhz, it gets around 85ºC. also, my radeon driver sometimes shows 0ºC for temperature, the gpu sclk shows 0mhz and the gpu util at 0%. and other times, the driver is working properly. can someone please help me?