Yeah I dont remember the jumper numbers, but there's one down the mobo (near the panel leds connectors) to put the card in jumper mode.
Then you set FSB, multiplier and voltage from various dipswitches located around the DIMM slots and CPU.
With newer bioses 105x all settings should be available in jumperless setup too. It has been reported though, that OC systems are more stable in jumper mode. Didnt try that yet.
Also, if you have to flash bios, check asusupdate, which allows to flash from within windows. That rocks.