The bios, as we hoped is fully featured and offers all the settings we would expect from an enthusiast level product. There are many settings for overclocking and we managed to get our 2500k to 5ghz, and the 2600k to 4.8ghz with a Noctua NH D14 cooler. This is pretty much just like every other P67 style board we have reviewed lately and we didn't encounter any issues over the course of the last week of testing.
As with many of the newer bios designs you are given full control of the mouse, making the whole experience much more intuitive.
Overall system validation (with the 2500k installed) is available over here