ok i can help
first your playing with fire letting the bios autodetect the QPI/VTT VoltagE for you
As you know the memory controller is now in-die (the cpu) so as you raise the memory voltage ...YOU HAVE TO SCALE THE VTT accordingly
So 1.66 on ram is about
1.42 on QPI/VTT Voltage
Ill look over your other voltagaes and edit this post in a min
**edit** increase CPU PLL to 1.85volts
to get 222 cpu blk thats around 4.4 you would need
1. around 1.3875 CPU CORE
2. and 1.44 on VTT
However (andrew i am sorry but i have to say this to to the best advise to the gentleman) on DFI boards ( i havent messed that far yet to see of Gigabyte can do the same) you can actually play with the BOOT clock (sperate from CPU clock) in order to get it boot and RUN on less volts, I will play with this on the review
Aslo another good tip is, sinCe the memory controller is onboard, its even MORE crucual you get the ram settings correct. With my geil ram ddr3 2000,mhz I set the TRFC to 75 this slows the ram by jsut a small amount but allows you to get a few more MHZ frequency out of the CPU