I've had a breakthrough... its currently overclocked to 3ghz in the bios!!!
It turns out after trying everything I could think of... the ds3p board can't overclock with ANY USB devices attached (except keyboard or mouse). So tomorrow I need to pick up an internal usb card.
Strange but true! But given the choice between a 2.4ghz quad core and usb hub or 3ghz quad core and buying a cheap internal usb card... I know which one I'll be doing.
Thanks for all the suggestions.