Da, to je u BIOSU, ali se nemoraš brinuti.
Evo što piše u uputstvima:
This option gives user an easy way to oveclocking.
It will incrase CPU external clock automatically.
When CPU external clock increases to an unacceptably high value, BIOS will restart your system, then running at an acceptable CPU exsternal clock.
To ti pomaže pri overclockanju, ali nema brige ako nije uključeno.