Is it possible? or am I being a bit silly in asking?
i better question is why are you using 12Gb of ram in a set-up that requires dual channel so thats either 4gb,8gb,16gb,32gb
if you have 12gb either companies have started making 3gb sticks without me knowing or you are using 3 channels.
you will probably find your system will be faster if you take out the 3rd stick as IIRC the mobo can't run in dual channel mode with 3 sticks inserted