I found a tweak that allows me to utilize ram much better with the San Diego

I had previously not be able to acheive even a modest ram overclock while running the CPU at 2.8ghz. But I have found that if I use A64 tweaker to disable the mem clk for banks 2 and 3 (the empty banks, I have 2 x 512 in banks 0 and 1) that I can now run ram at 235mhz 2-3-2-7 while running CPU at 2.8ghz My Sandra bandwidth is now back up around 7000, and I got a new SuperPI 32m personal best of 26m 17s

This tweak also seems to bring the SD's memory bandwith scores back in line with my Winchester and eliminates the 300+ point difference at the same clocks. I,m guessing it will also help those who are having high temps overclocking the SD's on air.