As you can see, mine is at 3.15ghz, so I'll let you know what my settings are, hopefully that can help you guys reach higher clocks. I might not remember them all off the top of my head, but here goes:
CPU Voltage 1.36
Memory Voltage +.2
MCH + .1
FSB + .1
RAM timings 5-5-5-15
I have all the CPU options which change the speed based on usage turned off, and I think that's it.
When I was testing mine for stability it was crazy. Right now I'm running at 48C at 100% load with folding the SMP client, but when I was stressing it with ORTHOS it was going up to 57C! That program is freaking crazy.