Well, since I have one, I may be able to help you out!!!

You do need to change your BIOS settings. Make sure the jumper near your cpu is ON, if it is not the board will stay at 100mhz.
You need to go to the upper right selection that says Genie BIOS settings or something similar, and set your FSB to 166MHZ, I believe your BARTON runs at 333mhz ddr for the bus, does it not?
Save settings, and you should be ready to go!