^ You only need to play with NB Core Voltage and CPU VTT Voltage, 1.53-1.57v NB Core and 1.4-1.6v CPU VTT is the sweet spot for most.

Did you guys noticed whistling sound this mobo makes when you set CPU VTT Voltage to something like 1.5-1.6v? It's very annoying and loud, I can't seem to find where it's coming from.