Now your talking, big question with 2400 sticks is what CPU, need a strong CPU for it's MC (memory controller) for 2400 - What CPU, guessing Intel from the 1.65 comment - Intel recommends 1.5 for base level DRAM (i.e. 1600), however 1.6-1.65 is perfectly fine, INtel even certifies 1.6-1.65 DRAM for many of the 15 and 17 CPUs (primarily the k models)