a friend gave me a set of kvr16n11s8h/4 and one kv16n11s8/4 low profile.i currently have one 4gb ct51264ba1339.d16fed2.i was wondering what would be my best way to use them .also my motherboard is a msi z77a-g45 and proccesser is a g1620 but i plan to upgrade to one of the i7s in the next few months.