Intel boards have the same chipsets 3rd party Intel-based boards have- and those overclock. Any board, in any system should adhere to specifications and be placed in a system where incompatibilities that are known aren't present. So under those constraints all boards should be just as stable under stock settings. The variance in performance with the chipset is negated because those 3rd party manufacturers use the same chipsets, and the choice of controllers for disks and whatnot are arbitrary- the difference is typically unseen. That being said, why would you think/suggest an enthusiast board set to stock settings wouldn't be as stable?
I think it'd be illegal if intel were to release a standardized set of specs of adherence for use with their processors, and then use something differing in their own product lines... so that's out.