I have the X3350(Q9450) and can run 3.6 (450x8)on air. I have the OCZ Platinum DDR2-1000 and it runs at 900 ( 450X2) with 1:1 ratio.
The Rampage Formula (X48 Chipset)is great for hitting 3.6 with a quad. The highest I had it stable on air was 3.698 (462X8) with 1.32ish volts in BIOS.
In...