Pg. 26-32 and pg. 51 of your owner's manual describe the use of the bios in overclocking.
CPU control must be set to manual to raise the multiplier in bios.
Your bios does have a good set of basic manual overclocking tools. No core unlocker that I can see, however.
As far as software overclocking, use the "Fox One" utility that came with your install disk. Software overclocking is not as thorough as manual bios overclocking, however, and generally doesn't yield as good a results as the latter.