2400Mhz Ram is running at 1333Mhz

MrPirateHD

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Nov 1, 2014
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Hi, I have a i7 4790k 4.0GHz. My Motherboard is MSI Gaming 5 Z97. I have 16GB DDR3 2400MHZ RAM but its only running at 1333MHZ. How can I change this? ( I am a complete noob at this sort of stuff) Any help would be really appreciated.
 
If I may, I'll hijack Your profile. Without overclocking, is there any "real" advantage of having memory run at such a high clocks? I have 1866 MHz Crucials, running at 1333 MHz. Should I push them? My 2-4 way raid is running 1100 - 2200 MB/s tops, ram is achieving now at 1333 MHz 18 594 MB/s according to memtest. Does memory clock affect something at all? In real life, not in benchmarks...