CPU Support AMD AM4 Socket 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/AMD Ryzen™ 2nd Generation/3rd Gen AMD Ryzen™ Processors Memory Support 3rd Gen AMD Ryzen™ Processors 4 x DIMM, Max. 128GB, DDR4 4400(O.C)/3466(O.C.)/3400(O.C.)/3200(O.C.)/3000(O.C.)/2933(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory 2nd Gen AMD Ryzen™ Processors 4 x DIMM, Max....