I've been doing some tweaking and stress testing in Windows.
I'm not loving the temps, but many people are saying that it's normal and completely safe with Ivy Bridge.
Gigabyte is working on Bios updates, and there are some betas floating around.
The one thing I've noticed is that auto bios settings are giving me pretty high temps. The board seems to be a bit generous with vCore. I set mine to "Normal" and assigned -.070 as the offset. I also lowered PLL to 1.65, and I set Vcore Load Line Callibration 'LLC' to low.
One odd thing I noticed... I was considering getting Indigo xtreme to use in place of Noctua paste, but in order to install it you have to run without fans in order to "reflow". I ran intel burn test with my fans unplugged and only get a 5c difference on the max core temp! This thing is big enough that it almost cools passively.
Just getting this response up for now. I'll edit with some snaps from bios screens soon.