Ok well, I tried what you guys suggested and it did not have any effect. Like my IOH voltage around 1.21V the QPI/DRAM voltage seems to get "stuck" around 1.607V. However, if I bump up QPI/DRAM to 1.7V or higher the actual QPI/DRAM voltage does increase though it has a massive 0.05V droop. At 1.8V on QPI/DRAM this droop turns into 0.08V droop. Strange behavior indeed. I did all the measurements with a DMM this time around.

I managed to POST with 4.611GHz Uncore only once but could not post again afterwards. I am thinking that in my testing this is a combination of DRAM issue as well as the chip and the board. One other thing that I noticed while testing Uncore is that the 1.65V triple-channel Corsair Dominator sticks that I have do not seem to do well with increased DRAM voltage and will infact cause channels to be lost. If I drop the DRAM voltage back down to 1.65681V then I get back all of the channels. However, in order to properly test max Uncore I need to increase both DRAM and QPI/DRAM voltages. Quite a conundrum if you ask me...

I don't want to go buy some high powered sticks only to end up still not being able to clock the Uncore higher and plain wasting money on them...

Finally, I noticed I can POST higher Uncore if my BCLK is higher which was opposite of what I was expecting. I redid the tests several times with BCLK at 207MHz and at 162MHz and using 207MHz I can post higher Uncore clocks than with 162MHz.

Bah! I'm at my wits end here...at least for the moment...any further ideas?