I got amd athlon 64 x2 2.6ghz duo core. And it overheats with basic tasks like watching video or such like playing simple game like counter strike 1.6. And I dont even start game I just enter it. While in pasive or in unity game engine(but only coding or some other simple tasks not playing game) it is stable more or less 30°-39°C. I didnt notice this because I recently reinstalled os and was in middle of installing drivers when I noticed this. I changed thermal paste 3-4 times but still the same, I dont use top thermal paste like coolermaster or arctic silver, could that be reason.