Update: Also a lesson on CPU building, if you smell something, something is wrong. Even if you don't realize it's your computer since it could be a million other things in your house that can burn or even dust just burning this time of year from your furnace kicking on. Anyway, I found out why the plastic on my CPU power plugs 12v broke off in my last motherboard. I didn't think much of it I just cursed as I broke them free of that board and assumed I jammed them in too tight or I did something wrong but found it odd of all the plugs on the power supply those 2 the 4 pin and 8 pin were only ones that did that.
Long story short, they melted in the socket. So I was breaking free the melted plastic which remained in socket on old motherboard. And I was getting random shutdowns etc on last build near end before it wouldn't boot and now I've had increasing issues with this one but even at first every so often under stress it would just stop and restart. I just assumed it was reaction to a bad overclock though strange it has happened before on other builds just not so frequently.
Anyhow weird thing is, I had plugged one remaining non-broken/melted pin into this new board and had same result and was distinct smell this time whereas before if there was I didn't realize it or assumed it was something else. So I noticed all my voltages/power was always consistent on every board and power supply is a Rosewill 1200 watt so I just didn't think it was power supply itself doing something wrong, so I used the plug that has exposed metal prongs that are what contact your board and plastic around them is just for show and to line up socket and bingo, all works fine. So only thing I can figure is plastic used on those fittings was defective or not proper plastic for obvious heat you incur where power enters board.
Other thing that is odd is I've had this power supply for at least a year or more so it's new but not so new I'd suspect it had an issue, it's one of newest/up to date things in my board part of reason I bought it! Anyway now not only is it working....I got it to run with least voltage ever Linx stable...just when you think you've seen everything you could see in 15 years of building PC's! Just....odd. But I'll take it!
Oh and besides fact that it was stable set at 1.36 volts....it was dropping to only 1.328 under load and was stable. I was using 1.375-1.39 minimum before to keep 4.5 ghz stable with 2666 mhz memory which this run was. Obviously my temps were great as well with so little voltage.
So here is screenshot on first of 15 runs showing load voltage 1.328, I laughed when I saw that and just assumed it would fail on first run or soon thereafter, definitely didn't think it would make 15 full runs.