My MOBO says the Memory Speed is (DDR3 1333+ (O.C.)/1066 MHz)

My MOBO says the Memory Speed is (DDR3 1333+ (O.C.)/1066 MHz).
So my question is that if I put an 1600MHz ram in the MOBO that it wont work?
So Choices are if I put an 1600 MHz ram in there chances are that :
A) It won't work
B) It won't make a difference between 1600 MHz and 1333MHz
C) It will work perfectly.

Please choose a,b or c and thank you for you your time.
2 answers Last reply Best Answer
More about mobo memory speed ddr3 1333 1066 mhz
  1. I believe it will down-clock your 1600MHz Ram to 1333+, but I'm not 100% on that (so if that's the case it'll be C) it will work perfectly, but not at 1.6mhz, instead it'll be 1333+)
  2. Best answer
    depends on the motherboard chipset and the cpu you use. the newer mb will take faster ram and a lot of mb vendor goof on there product labeling. if you do have a older cpu or one with a speed limit the mb will read the ram spd info and set the ram speed to 1333 speed. (667). 1600 ram is just 800 speed ram so your not losing much in speed. (if the mb defaults to 1333 and is an intel or amd see if it run at 1600 by turning on xmp profile).
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