I'm using a GIGABYTE GA-H55M-UD2H and Intel i5-655k and I'm trying to upgrade my ram. I got a pair of G.SKILL F3-10666CL9D-16GBXL 8GB sticks, but I didn't do my homework right and apparently they aren't compatible with my motherboard. I'm currently running two G.SKILL F3-12800CL9D-4GBRL 2GB sticks. Are there any 4GB or 8GB sticks that'd work with my mothrboard. I was aiming for 16GB of memory but if that is overkill would it just be preferable to buy two more of the ones I'm running for a total of 8GB across 4 2GB sticks? Thanks for any help!