Okay, I finally went and got an E6400. Now, on my PW5 DH I have other choices under the CPU settings in the Bios that were unavailable to me before....such as Virtualazation (enable says it will be locked???) and of course the stepping. I have everything set to disable except for Thermal control. Should I be enabling any of these things? Point me to a guide on the bios tweaks for OC the Allendale