Hi. I've been wondering why tools like CPU-Z and hardware only report Core VID and not Vcore. It seems you have the same issue.
What's with these ROG boards and why won't these tools allow accurate Vcore measurements inside the O/S???
XMP profiles have always, and still do work fine for me so I have no idea, sorry.
I'd had problems with the XMP profile with my Corsair LPX 16GB at 2666Mhz, Very often, after a restart or boot up, it showed me Q-Code 55
or the typical "Overclocking Failed!"
With this new BIOS, my PC booted and started right away! y tried restarting and also a cold boot.
It seems that finally the XMP problems are Fixed!! :o:o:o