I have DQ6, but same issue, there is no way to monitor NB/SB voltages. Everest will show the default voltages, and you have to add on what you set in the bios from that and assume that is correct...but that is a far cry from the ability to monitor.

By the way, I had a weird issue with 8B bios for P35 DQ6, my vcore would not increase, when I increased it in the bios. ? some bug, when they flipped the position of the overclocking section. Vcore set to 1.356 bios read 1.33 cpuz, which is normal. I tried increasing all the way to 1.425 in bios, still read 1.33 cpuz. With f7, 1.425 in bios gives 1.39 cpuz. Had to switch back to f7.