Which Athlon X2? A laptop or desktop Athlon X2, or an Athlon II X2? 60°C is ok for the Athlon II X2, its max is 74°C, if it's laptop based, I'm supposing it's fine, because my Athlon X2 QL-65 has a max of 100°C, but normally it's around 70°C or 80°C at approximately 70% load. I'm not sure for original Athlon X2s though. Also... do you mean Athlon X2 Socket 939, AM2 or AM2+? Just provide the number.