You guys gotta remember that as CMOS processes that are used to produce these chips shrink they become more and more sensitive to voltage, perhaps by the last process' standards 17-20% more voltage wasn't a major issue but its not unreasonable to think that with their current 65nm that it might be. Remember how it was with the P4 2.4C when everyone started OC'ing them and pushing the volts up and several months later we started getting reports of them spontaneously dying and/or getting degraded overclocks? Personally I won't go over 1.5v with my E6300 no matter what the cooling as its really the volts that will end up severely degrading the life of your chip (heat does have an impact to mind you, but you have to run the chip at or over the recommended limit for extended periods of time before it really becomes an issue).