I am currently using my computer for Video game development. I just installed 20 gigabytes of 1600 ram and it was only running at 1333. I went into Bios to change it and got it to run at 1600, but it will only use 8Gb. It will use all 20Gb at 1333 but only 8Gb at 1600. Any suggestions would be great. My Build: 970A-UD3p Mobo and FX-6350 CPU The ram sticks I am using is a bit mismatched. I have an 8Gb G.Skill Ripjaws stick, a 4Gb G.Skill Ripjaws stick, and two 4GB Samsung sticks. could this be why? Thanks in advance!