Sin, can you test B3 board for UD5 ?
Because software (Hwinfo32) is not that off on this one (0.02v higher than on ud7)
(1.25v BIOS LLC standard -->1.224v idle, 1.164v load on UD5)

That's assuming if yours was 1.25v bios standard, UD7 would report 1.204v idle 1.144v load (guesstimation)