I've had by 3570 for about two years. At first I had it clocked at 4.7, then eventually over the year I've had to back down to 4.6, then 4.5 and reticently 4.4. I have an Evo 212 and the CPU is delided w/ liquid metal TIM so it stays cool enough regardless of how high I crank the clock freq or vcore. Anyway, the computer will randomly lock up at 4.5 GHz. even with a whopping +013.5 vcore offset and CPU voltage line level at 1 (maximum)! Most people seem to get close to 4.8 GHz with that much voltage, but not me. However, when I lower it to 4.4 Ghz. it only needs +0.050 vcore. So a 100 MHz increase seems to need more than +0.065 more vcore and it's still not stable... That doesent make sense as you dont typically need that much vcore for such a small increase. What's stranger is that the frequency of how often it locks up doesent change that much with voltage. I can run 4.5 GHz. at +0.10 or +0.135, regardless it still only locks up about once every ten hours, and it's typically not during game playing but rather during Internet browsing.