I have an AThlon 1333 mhz CPU with a Volcano II heatsink/fan and it was running a little hot (low 50s C). I was just using the thermal tape and everyone said I need Arctic Silver II in order to drop the temps down. Well I removed the thermal tape and put on Arctic Silver II, and now my CPU runs about 5 degrees Celsius hotter than it used to. What the hell!!!!? I have two case fans. Now it runs about 57 C without any load!