Overclocking in BIOS
In order to overclock the CPU clock by change BIOS settings of RouterBoard from 500 batch, one should connect it with computer through RS-232 series port. Start the Hyper Terminal on computer, choose suitable COM port and configure as in the picture:
Accept and plug in RouterBoard to power supply. In order to come into the BIOS, press any key during start of RB.
Choose „f” in order to set frequency CPU work.
Then choose desired frequency and unplug RouterBoard for a moment from power supply. Come into BIOS again and save CPU settings by pressing „c”. Now, RB will have done restart and will start with new settings: