[reboot]

I've got the same chip on the same mobo.
Make sure you set voltage to 1.5 to start!!!!!!
Get BIOS update 1006 from ASUS if you haven't already, the 1005 version does not support voltage below 2v.
Disregard last statement if you have a slotket that sets voltage manually.
Boot to 66mhz bus at x9 multiplyer first time around.
Restart at 75mhz (it will do this with no problems at all).
Restart at 83mhz (should go, but peripherals don't always like the 42.6mhz bus), and if you can't get POST, you may have to increase the voltage a bit.
Check that cooling is premium, and try it at 1.55v or 1.6v to get POST. (Don't increase voltage if you don't have to!!!!)
Try it again at 100mhz. If you get POST, congratulations!
If you don't get POST, increase the voltage as mentioned above.
Mine POSTed at 750 (83mhz bus) at 1.5v (stock), but had to go all the way to 1.65 to POST at 100mhz (900mhz).