That was my thought as well however I look every couple of weeks and the dust filters need cleaning. I still have those orange fans, or at lease the ones that haven't died on me yet. I have since upgraded the components to have a core 2 duo inside. I have been monitoring the core temps recently and the idle temp is around 40c and when both cores are 100% it jumps to almost 70c. This is the reason why I was looking to add larger fans. I have also considered getting a new case, however I haven't found one that I really like.