I just bought 2 4gb gskill ripjawsx 2133 ram. Its the same from what i already have in my system, but, instead of 11 11 11 30, the new ones i got are 11 11 11 31. My computer is showing i have 16gb in but only 7.46 available, any ideas? Or did i mess up and need to get the 11 11 11 30?