Just curious, but you have an LGA775 computer. You do realize that your host interface(aka FSB) is more limiting to your performance than your ram speed right? What i'm saying is that your FSB's maximum speed is less than DDR3-2000. Any increase in performance above ddr3-1600 would be inpercievable and any difference between your benchmarks would simply be due to margin of error, right?

Also, I'd like to mention that the memory timings you are trying to achieve are not in gigabyte's supported list. I'm not saying that they won't work, but I don't think you really understand what you are asking for. You are asking Gigabyte to add support for RAM speeds that won't increase your performance, aren't supported by their list, and on top of it are for hardware that is basically obsolete. Car analogy: You want Ford to make your Mustang go 200 mph instead of 199mph, and you want them to make it work on your old 2007 model. Ford doesn't care about the 2007 model. They care about their 2010 and upcoming 2011 model.

If you want DDR3-2000 support you should drop some money in a new core i7 motherboard(doesn't have the limitations of your motherboard because the RAM is directly connected to the CPU.

Props for xtreme though.