So I got around to fiddling with my new rig yesterday and going through the steps to OC it when I noticed something odd. In MSi's new UEFI interface, my CPU was listed as having a clock speed of 20.26GHz! It also said that the CPU was currently at 50C, which was certainly alarming considering it was a cold boot and my fans were running at max. Odd, I thought, but let's try an OC. I turned off Turbo Boost and set the multiplier to 40x, saved and reset, went back into the BIOS and... nothing had changed. Or rather, all the changes I had made were still there, but the frequency reading was still wrong, the CPU wasn't taking any more voltage, and basically nothing was giving me a signal that this OC had actually happened. So, I said, let's see what happens in Windows. Windows boots up, and CPU-Z informs me that, in fact, the processor is running at stock speeds and voltage.
So I go to the MSi site and look for the latest BIOS revision. After some searching, I eventually find a newer release. Not only that, I find a forum thread detailing my exact problems. Apparently a small number of their boards are having this problem, and they have yet to find a fix for it. Still, I give the latest BIOS a shot. Now, when I want to save & reset, it simply freezes the entire BIOS interface and forces me to do a manual reboot. But hey, the CPU frequency reporting glitch went away.
Long story short, ASUS P8P67 Pro is on its way, and this POS is getting the royal RMA treatment. Until then, at least I can still use it to play games.