If TjMAX for the IB is 105C, you'd think that super-load temperatures just above 80C would be acceptable.
TJmax can be used as a good guide for estimating the sane regions of overclocking provided the OC'er is not overvolting.
As soon as overvolting enters the equation the relevance of TJmax is negated for every intent and purpose for which Intel characterized and spec'ed the TJmax value in the first place.
Sad but true reality of the situation