I recently bought a Ryzen 7 1800X and I'm fairly happy with it but it seems that when hitting 75°C it starts to lower it's frequency :
It goes as low as 3.4 ghz ( I guess it would go lower with time)
Here's my setup :
MSI X370 Gaming plus
Hyper 212 Led turbo
Corsair ram 16 go 2666Mhz
Bios : 7A33V5D
Should I put a static multiplier in the bios, or do you have another solution ?