I think that those CPU/IOH clock skews are little bit worth nothing.. only help I noticed was at very high FSB (220). Maybe try it without them..
G25 is good.. I had very good results with P06/07 .. running P08 now, not exactly totaly happy from that.. P08 is definetly not better for OCing. But it fixes some bug.. so good if someone experience some bugs..
vCore voltage.. if Im correct, max "safe" from Intel is 1,55V. D0 or C0, doesn't matter.. its just better revision.. CPU is still 45nm, so theres no reason to change voltage..
BTW. I think your tRFC is 92, not Command rate.(you can try higher for higher FSB, but not sure it helps..) and changing PCi-E clock to 103 might help a little bit..
IOH VCCA 1.1V survives 1.3V .. I tried 1.34V and its still working.. helps a little bit in high FSB.
I see you have VTT only +220mV .. well for BCLK 220 I needed I think +400mV.
If you have chipset on water, it should survive up to 1.7V VTT. Not recommanded on air.. So higher VTT is one way to get more BCLK.Plus you can try adding some QPI PPL voltage (up to 2V).
Yea and definately change CPU amplitude to max .. 1.000 V.
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