The IMC supports Dual channel with the DIMS either occupying only two slots or must be all four of the same DDR3 modules if you plan on running at 16gb either fill 2 or all 4 slots with 2x8gb or 4x4gb. It most likely is required you setup in motherboard bios too once you finish installing...... prior to boot select XMP profile under bios settings and it should report at the correct cas timing and frequency. lookup in windows that it's at 2400mhz with CPU-Z or AIDA64 before messing with bios.