AMD B450 Supports 1st, 2nd and 3rd Gen AMD Ryzen / Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon Graphics / Athlon with Radeon Vega Graphics and A-series / Athlon X4 Desktop Processors for Socket AM4 Support DDR4 1866/ 2133/ 2400/ 2667Mhz(by JEDEC) For AMD Ryzen Gen3 (R5/R7/R9) - 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3733/ 3866/ 4000/ 4133 MHz (by A-XMP OC MODE) For AMD Other CPU - 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE) Dual channel memory architecture Supports ECC UDIMM memory (non-ECC mode) Support non-ECC UDIMM memory