Support Ryzen 5 3400G & Ryzen 3 3200G AMD Promontory A320 Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Matisse, Summit Ridge, Raven Ridge and Pinnacle Ridge) AMD Ryzen series CPUs (Matisse) support DDR4 3200/ 2933/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC) / 2933(OC) / 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC) / 2933(OC) / 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC) / 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory AMD 7th Gen A-Series APUs support DDR4 2400/ 2133 non-ECC, un-buffered memory