I think it's the mobo that causes the biggest limits in OCing. I have an E6300, that when it was popular, people were getting into the 3ghz range, but I can't get my mobo to go past 2.6ish ghz.
Could my OC be bottlenecked by my PSU? Do you think that may be the reason why it won't be stable at 1.6-1.65V? Any programs that can check how much Watts/Amps my CPU is using at a certain time?
Is there any way to see more than just the top 30? For my CPU, they're all liquid nitrogen results. I'd like to see what they are on air. I've gotten my CPU to 3.9GHz before, not completely stable though.