I made it to the 500MHz Club!

Hardware:
P5B Deluxe
Two Sticks of Buffalo Firestix FSX1000D2C-1G (D9GKX)

Voltages:
NB - 1.8v
RAM - 3.0v

Timings:
3-3-3-8

Validation:
http://valid.x86-secret.com/show_oc?id=202177

Screenshot: