suttingdown

So I have the Strix b450f gaming. I have 4 sticks of the corsair vengeance rgb pro and there speed can go up to 3200mhz. My issue is when just having 2 sticks in so its 16gb it allows me to put it at 3200mhz and it runs perfectly fine but the moment I put all 4 in and set it to that speed it...