I just got my new e6600 in because I rma'd the first. I'm trying to overclock the processor and I got it to boot into windows at 1.46875v on my evga 680i motherboard. I try running Intel TAT to check temps/stability on the overclock and no matter what voltage I give the processor from here up to 1.5v, it just locks up, blue screens, and restarts. My power supply is an antec neopower 480 that i've had for about a year. I'm also running 2 harddrives, 2 optical drives, and an 8800gtx. Could my power supply be the culprit, my e6600 not being able to got that high, or is it my windows install because when I rma'd my first cpu i just took it out of my machine which already had windows installed and put the new one in when it came in. I also had to get a new mobo, the same one also, so new mobo and new cpu and when I got into windows i updated bios. My e6600 should be able to hit 3.4 from what i've seen. Most people have been able to get at least that.