According to the product sheet its 1.9v. If you do OC you may need to raise the voltage on that but a mild OC you will probably get away with it.

http://www.corsairmemory.com/_datash...X2048-6400.pdf

Set the TRaS to 40 or 42 and it will be stable.

Other than that disable anthing that you are not using ie on board sound if you have a sound card etc.

Set you Primary HDD as boot device and no other. That should speed up windows load times.

You should be "set to go"

Enjoy your new toy