I am a little confused what ram to buy to pair up with Ryzen. First I'm torn between these boards:
ASrock AB350 Pro4
MSI B350 PC MATE
Asus Prime B350 Plus
Do all modern ddr4 ram will work on these boards? About the speed, all of them says Ryzen cpu support DDR4 3200(OC)/2933(OC)/2667/2400/2133.
Does this mean it only support 3200 mhz of ram speed only through OC? So I just need to buy a 2400 mhz ram and oc it to 3200? or buy a 3200 mhz ram?