ga x58a ud3r...reboot loop

Just finished assembling my new system and had problems with a reboot loop that started after windows 7 install (when it says preparing for first use)
After trying several manoevers i saw the vcore set to auto on default cpu speed was 1.25v, i upped to the next option 1.26 and i got a stable system so far but it feels like an awful lot of voltage for default settings.
Is this right? cpu temp under 40C
ga x58a ud3r
i7 920 (nh u12p)

I would just set the cpu voltage to auto and see if that helps. could also be the qpi vtt, may want to give it a little there especially if you are running real high speed ram