RAM issues please help
I just built a new computer and windows is not recognizing all the ram i have. I have 16gb of ram but windows say i have 12 and only 7.98 usable. i am running a gigabyte ga-990xa-ud3 mobo, amd fx-8150 processor,4 x4gb corsair vengence ram, geforce gtx 560 ti video card. I tried switching out all the ram sticks individually and they all work. I also used cpu-z program and it recognizes 16gb of ram but windows doesn't.