Wel i got 4 sticks of 512 meg corsair twinx 2-3-2-6 running at 386 mHz and very stable.
Overclocked 3000+ Venice to 2607 mHz, fsb running at 289 mHz and used 133/200 divider.
Memory works just fine at default 2-3-2-6 at 400 mhz but my fsb wont go higher then 297 so am sticking at 133/200 divider and fsb at 289.
I tried 2-2-2-6 at 386 mHz but memory failed to work with 4 sticks.
Have a DFI nforce 3 ultra D which is good but running mem at 1T doesnt work.
So i am happy with my overclock. The memory works just 14 mhz below standard 400 mhz but thats no big deal.
Going from 1.8 to 2.6 ghz gave a boost in all applications. Benchmarks of call of duty and HL2 showed a steady 30% fps improvement with the same vidcard.
And with the RMclock utility it slows down to 1.15 ghz when idle or doing some office stuff
so that works fine too