Need help choosing RAM. Using the ASUS P7P55D-E LX with the i5 750
I'm currently using the using the ASUS P7P55D-E LX with the i5 750 motherboard, I have 4GB of OCZ RAM (link below) in there and I want to do a serious upgrade and potentially use up my 4 RAM slots. I know nothing. Under 300$. What do I do?