Advertised DDR3-1600 is usually DDR3-133 RAM with a 1600 XMP profile. The XMP profile normally boosts the voltage to hande the greater speed so be aware of this. Two choices
1. Go into the BIOS and select "XMP Profile" (read MoBo Manual)
2. Manually set the RAM speed, voltage and CAS timings manually
I find Option 2 less problematic.