I have a G0 X3220 and 4x1GB OCZ Reaper PC9200 on this board and I can't seem to get higher than 3600. I would greatly appreciate some tips on how to get higher.

Right now I have these settings changed:
CPU Ratio: 9
FSB Strap: 400
DRAM Freq: 1066 (3:4 divider) (I think 1:1 would work too, just testing this)
Timings: 2T, 5-5-5-18
CPU volt: 1.55
All voltages at the highest "green" setting.
Both spread spectrums off.

I tried pushing every vsetting way up, but I cant get P95 stable at any higher FSB. Are any of you guys using a lower FSB strap to northbridge? If so, what are your mem settings?
I didnt touch the REF settings. Did anyone need to change those?
I cant get P95 stable with any lower vcore settings. Is there anything I should change that would let me lower this one (other than speed of course)?

thanks!