That CPU is only guaranteed to work at DDR3-1333 speeds, but there's at least a 95% chance that it will work just fine at DDR3-1600 speeds. Of the 5% of the cases where it doesn't work with just an XMP profile, 80% of the cases can be solved by loosening timings and/or bumping the voltage. The remaining 1% are just lemons and there's nothing that can be done about it.