This is pretty much the only thread with exact settings in: http://forum.msi.com.tw/index.php?topic=116830.0 | Beyond that, I would say no, not really. I'd attempt to give you some advice on settings, but I have no experience with Wolfdales. I guess you're stuck with good ol' trial and error!

I'm not aware of any voltage issue. I think the USB ports on cases only supply 5v, compared to the rear ports which provide 12v(?). Not 100% on the exact voltages, but case-attached USB ports do not supply as much current as the back of the mainboard.