Just bought this set from memoryc:
G.Skill F3-17000CL9D-8GBXLD, run on MSI Z68A GD80, 2600K (stock speed), GTX 580 and W7 Ultimate. This set never run at its speed 2133 with whatever I set in BIOS from XMP to manual setting. Any idea what should I do? Could I RMA for another set?