Well, things to consider: Intel told me, " we don't care how much hotter X core is than Y core, all we are concerned with is if the chip exceeds 70 degrees celcius. " Further, these temps were after I just powered on after being off all night. Windows had just loaded so everything was at less than 5% load on the cpu. Also, what is weird, is realtemp tells me the temps are fine but my 790i BIOS shows it at 50c. I've been told the CPU is slightly loaded in BIOS, though.
The only theory I think is valid and hasn't been disproven is that maybe one set of cores isn't receiving as much contact as the others. I'm talking internally, perhaps, when the CPU is made there's a percentage of offset on how the cores sit. Or, the sensors could just be improperly aligned. IDK, intel only gave me that response and they wouldn't say much more. =/