I have the X6 1090T cpu and the motherboard sitting in my closet waiting on my decision on what ram to get. I plan to do some fairly heavy overclocking so I wanted to be sure to get the best ram for the best results.
You have the same setup? Motherboard too? I'm just trying to understand why you need 2x4g configuration.
If you are going with the ram you picked out you can go to the manufactures website and they will have the recommended voltages listed for that ram. It will likely be on the packaging when you received it as well. Mine did.
I finally got mine up and running today but I'm still not ready to OC as of yet. I have to get an aftermarket cooler to replace the stock cooler so I'm running stock ftm.
It's kinda like driving the speed limit in a ferrari and not being allowed to step on the pedal, lol...