not downclock

Hi, I just upgraded to a Ryzen 3700X from an I7 6700, my old i7 used to downclock itself to like 900mhz when it was idle and the temps would drop nice and low, like the mid 30's. With my Ryzen 7, that doesnt seem to happen, no matter what I try, the CPU always stays between 3.6ghz and 4.3ghz...