I've ordered an ASRock Fatal1ty Z170 Gaming-ITX/ac motherboard and downloaded the user manual but am confused by the RAM info:
What's the meaning/significance of the "OC" with every >2133 RAM speed?
e.g. If I buy this DDR4-2800 RAM, do I need to manually enter some OC settings to overclock it, or if I insert the DIMMs will the mobo automatically detect and configure it as 2800?

What's the meaning/significance of the "OC" with every >2133 RAM speed?
e.g. If I buy this DDR4-2800 RAM, do I need to manually enter some OC settings to overclock it, or if I insert the DIMMs will the mobo automatically detect and configure it as 2800?