Disable Unused PCI Clock
Possible values of an option:
The option description:
Allows to reduce level of electromagnetic radiation of the computer. At its switching-on signals on not used slots of buses PCI (and, probably, PCI Express) cease to move. As reduction of level of radiation slightly also does not justify possible problems with stability of operation of the computer, this option is better for ungearing ([No]), especially, if you are engaged in acceleration.
Other options identical to destination: