Possible values of an option:
The option description:
At switching-on of this option ([Enabled]) change of frequency of the front-side bus not is mandatory conducts to change of frequencies of remaining buses (i.e. you can fix frequencies of buses PCI, AGP, PCI Express, probably, independent to change frequency of the memory bus). Otherwise ([Disabled]) change of frequency of the front-side bus will lead to proportional change of frequencies of all remaining buses.
Other options identical to destination: