Here is everything you would like to know about memories::
Memory Overclocking: http://www.hardwaresecrets.com/article/152
RAM timings: http://www.hardwaresecrets.com/article/26
Dual channel: http://www.hardwaresecrets.com/article/133
About ddr,ddr2,ddr3 http://www.hardwaresecrets.com/article/167
Memory Overclocking: http://www.hardwaresecrets.com/article/152
RAM timings: http://www.hardwaresecrets.com/article/26
Dual channel: http://www.hardwaresecrets.com/article/133
About ddr,ddr2,ddr3 http://www.hardwaresecrets.com/article/167