You don't need quad channel at all. If you want to save money, x79 is able to do single, dual, triple or quad channel so you can just use the existing ram if you want. Or if you want quad, yes, you can order the same kit and there's a 99.9% chance that they'll work together. There's always a very low chance they may not like to play friendly.
3/3/14 at 6:41am