I only upped the voltage like .025 or something, from 1.325 to 1.35 and I don't think it even does the little power down thing. I know whenever I unplug the PSU or anything like that it will turn on for a sec, turn off then turn back on and power up. I haven't tried OCing it again since I tried that first time but from what I remember I don't think it did that off and on thing. I just put in the changes, saved and exited and it rebooted. That CMOS thing is a possibility, I haven't done that yet as the first time I did an OC on this setup it was fine. Then I fried the PSU, CPU, and Mobo and had to replace all 3.