Originally Posted by GreekElite
thank you very much ill try tomorrow, just one question that i really want to know is why would motherboards support 2133mhz without overcloking when most cpu's can only handle 1600mhz max??
Correction; you'll only be able to run memory at 2133MHz when you overclock. The 1600MHz is the rated memory speed for SB-E processors. Just like 3930K is rated to run 3.2GHz at normal frequency & 3.8GHz at turbo boost frequency but you're allowed to overclock to higher frequency. The memory modules (DDR3) that come with rated speed higher than 1600MHz is X.M.P. profile memory. With X.M.P. memory, you're able to overclock memory to run higher than 1600MHz. One thing you need to know, even if you buy 2133MHz memory kit, it doesn't mean you will be able to run at that speed. It all depends on the quality of the IMC (integrated memory controller) which built in the CPU & each CPUs are not the same where some CPU might be able to run memory at 2133MHz with little settings while others might a bit struggle to run memory at that speed (or can't run at that speed at all).
Intel recommendation is to get DDR3 1.5V memory modules. However, even in Intel's QVL list, you can find DDR3 1.65V memory listed. Basically 1.65V also fall under OC. A lot of people running their memory with voltage higher than 1.5V & it works just fine. Anyway, general recommendation is don't go higher than 1.7V when overclocking.