Why would you want to put additional stress on any component if you don't have to? The MC is in your CPU and additional sticks could affect the OC potential of the CPU, as well as affect the overall performance of the rig. A lot of things go into fine tuning and OCing a rig, most people coming here looking for help are not higher end builders, if they already had the knowledge and the skills they prob wouldn't be here. Many of us provide advise base on core building essentials. This is what I try and do, getting into more indepth help like OCing CPUs, GPUs, DRAM etc is also available, but everyone should start and learn the basics first...as far as DRAM goes I wrote an article FAQs and Fiction to help people with basics of DRAM...