This board seems to dislike high VNB and VTT... good for us. My voltages won't even get to the yellow zone and system seems to be quite stable. 1.28 VTT and 1.39 VNB... weird thing is that my RAM is the most stable when I set the BIOS between 1.5 and 1.6. That's where Asus software reads it between 1.8 and 1.9. If I set BIOS to 1.8 Asus AI reads 2.55.