Asus b550-e gaming adaptive voltage ?

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Hi, i buyed a ryzen 5800x and an Asus b550-e gaming,

i try to limit the max Voltage on ryzen @1.25, but in idle i want less voltage (0.95) How do that ?. I think i need adaptive voltage but i dont see that on bios, only auto, manuel and offset. Where is this option ?

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I have 7 days left to return the motherboard if there is no response / improvement by then I would go to another brand ...