[v3nes]

I have crosshair iv formula witch supports "4 x DIMM, Max. 16 GB, DDR3 2000(O.C.)/1800(O.C.)/1600(O.C.)/1333/1066". I also have corsair dominator which comes with speed 1600 MHz.

I found option in bios to change ram speed. It was set to 1200+ MHz not I set it to 1500+ and I also have option to set it to 1700+

+ means more than the number before because i don't remember exact number

My question is if I set it to higher rate (1700+) it will be "overclocked" and could not work properly? And what does 1600(O.C) stands for? I know o.c means overclocked but my ram runs at 1600 (stock) so it's not overclocked. Does it make any difference?

I also open CPU-z and there is only 620.8 MHz in (DRAM Frequency). Should it be 1600 MHz?

Does rate speed make any difference? 1333 vs 2000?

[Richierichdolla]

You wont see any notable difference, only in benchmarking there would be a slight difference just leave it at 1600 MHz O.C. Looks like you ram is 1333 MHz but can be overclocked to more. Also cpu-z shows half of the frequency x2 so for 1333 you should see 666.5 or something like that

[redduc900]

What's the current HTT (CPU Bus Frequency)? Better yet... post pic's of CPU-Z open to the CPU, Memory, and SPD tabs.

[v3nes]

CPU Bus Frequency you mean Bus Speed? It's 232.8 MHz

Here are ss's

http://minus.com/lrtgkNNw96n84

[redduc900]

Just leave the DRAM frequency where it's at... DDR3-1552, which is only 24MHz lower than what the modules are rated to run at.

[v3nes]

Originally Posted by redduc900

Just leave the DRAM frequency where it's at... DDR3-1552, which is only 24MHz lower than what the modules are rated to run at.

I don't want to bottleneck my system... just kidding thanks for answers