I couldn't open the Cousair page but here's a question for you. The board, IIRC, is rated for DDR2 800 or DDR2 1066 RAM. Why do you need faster RAM? Again, IIRC, your front side bus speed is 1333 giving you a CPU Bus clock of 333. 1066 RAM has a Bus clock of 533, therefore, the RAM will always be waiting on the CPU (CPU bottleneck). If you wanted to overclock the CPU to match the RAM speed, you'de have to raise the FSB to 2132 and probobaly also have to install a water cooling system. Frankly, you could get by with DDR2 667 RAM and not really notice any drop in performance.
You can install up to 8 Gb in that board (4 slots x 2 Gb sticks = 8 Gb max). A Windows 32 bit OS will only recognize 4 Gb minus your video card memory (approx). If you want to go to a 64 bit OS all 8 Gb will be available. As a side note, no 32 bit application is allowed by Windows to utilize more than 2 Gb of memory.
You also have to install memory in matched pairs to run in dual channel mode.