What I was getting at, and had forgotten, is that the CPU itself, has its own memory controller.
So does the motherboard
Motherboard can go up to 4400mhz per the manual
CPU can go up to 3200mhz per the manual
Lowest common denominator is spec, anything else is overclocking. Id manually set it to 3200mhz if DOCP is having an issue (and make sure BIOS is up to date)