I was just wondering how fast I can overclock my pentium 4 2.8B processor (without having to change any voltages, and without destroying it by high temps). I have a decent heatsink unit (thermaltake spark 7) and am currently overclocked to 3.11 ghz an my idle temperature fluxuates between 41-44c. Can i safely take it higher with my current heatsink without changing voltages?