AMD Ryzen 7 5700G can it accept DDR5?

Hello, no, AMD Ryzen 7 5700G is on AM4 and support DDR4. Only AM5 CPUs can support DDR5

Questions & Answers: AMD Ryzen 7 5700G - Ryzen 7 5000 G-Series Cezanne (Zen 3) 8-Core 3.8 GHz Socket AM4 65W AMD Radeon Graphics Desktop Processor-OEM, No Box

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AMD Ryzen 7 5700G - Ryzen 7 5000 G-Series Cezanne (Zen 3) 8-Core 3.8 GHz Socket AM4 65W AMD Radeon Graphics Desktop Processor-OEM, No Box