Have managed to overclock my Q6600 to 3.4Ghz, by just changing the FSB, increasing the voltage and changing the DRAM speed to 1:1, and have run Prime95 for just over 8 hours with success at 1.4150 volts. I have tried today to lower the CPU voltage to 1.4050, but after about an hour or so i noticed i got the blue screen. I am under the impression that i should be able to lower my voltages more than the 1.4150 im at at the moment. Any suggestions??