I agree it's a problem with the CPUs not the mobo, but I don't think it matters. Intel raised TjMax by 30 degrees compared to 65nm chips for a reason and surely measuring how far away from that you are via CoreTemp is a reliable indication of whether you're running too hot.

I've run chips much hotter than this, the heatsinks generally got too hot to touch and they still ran fine. My old P4's blackened the copper heatsinks because they got so hot, ran at 85 degrees 24/7 and never had a problem. This E8200 can't even warm my IFX-14 up...

With actual 1.44 vCore under load I'm TjMax - 35 (70 / 105) on air, around the same as my 65nm which was TjMax - 32 (47 / 75)? Fine I tell ye!!

At the end of the day: cold heatsink + TjMax-30 = np