Nice try, but do notice the distorted sound at PCIe=125 MHz. I tried it and firstly I got excited about the relatively high overclock, but then noticed poping during music/movie playback... All this is in case of using the integrated SoundMax HD Audio. No idea what happens when using external audio adapter.
Just spotted a new bios, its a beta though 0606.
http://support.asus.com/download/download.aspx?SLanguage=en-us&model=P5B-VM
If anyone wants to try it, let me know if it gets around the failed pci=e lock problem.
Nope, unfortunately it does not :-(