Might have too much or too little Thermal compound on it. What CPU cooler? Make sure it's fully attached and not overly tight
It IS more than a grain of rice but it is a nice smooth layer. the heatsink is mounted on with a mechanism so i cant make it very tight. There are 2 cooling elements. one is a standard MSI circupipe cooling for the motherboard and another one is a cylindrical heatsink with a fan in it. the fan is set to 87.5% power so i think it should be alright.