the software has nothing to do with this! you have to change the clock speeds in bios, or look for DIP switches on the board (or jumpers). routerboard is completely different kind of hardware.
perhaps there are things that we both don’t know
one thing that I did not understand was if Bios can control CPU speed
why should they make softwares to control it at software level?
that is something completely different! speedstep/coolnquiet is a method of power saving for laptops, only special drivers in windows know how to do this.
btw i googled for you, and found that this board is not support over/under clocking (in simple terms, the FSB is locked on this board).