Kanth, I have had the same processor running at 3.8 GHz for a year or so now. The temperature stays low, below 50 celsius/120 F. The only thing I did was to raise the bus speed to 400. I'm not quite sure about the motherboard automatically raising the voltage though, it's currently 1.6 V. At this point I don't care about longevity, if it dies prematurely a new one costs next to nothing.