It will run DDR3-1333 by Default and unless you're willing to OC and run th FSB -> 240MHz then leave it.
But would it even be compatible?
That's my question.
What I am understanding from your post, is that the Corsair Vengence 1600mhz model come at 1333mhz and must OC'd to achieve the 1600mhz?
Also, just found out that it can run memory set at 1333mhz, so that means that the Corsair Vengence ram would be compatible even if it, correct?