Corsair TWINX 2048-3500LLPRO
 

For overclockers, you are not going to get amazing 1:1 performance
with this kit, but 248MHz is still pretty good for an overclock with a CAS
of 2.5. This memory did run at a command rate of 1T throughout testing with
both my E3 3000+ Venice and in some basic testing with my D0 3000+
Winchester. This is good to know as some have had concerns with the memory
controllers being able to run 1T in older processors before the E6 stepping.
If you are running the new Asus A8N32-SLI DELUXE, then you are guaranteed
these timings and frequency as they are tested on that motherboard before
packaging at a command rate of 1T.

Link: http://www.overclockersonline.com/in...ticles&num=325