To don;t make another post, i want to know what should i do with my 1866Mhz RAM, which does't starts up the screen. I have MSI G46-970A and in the list it says that it's compatible with 1866Mhz, even overclocked to 2133Mhz. I thought they were dead, but i installed another couple and they didn't run too. Then i installed 2GB 1600Mhz and it worked. I want to know how to run my 16GB 1866Mhz RAM on this mother.