My ryzen 3600x running at 4.250ghz @1.360v on h100i v1 using amds auto overclock, when I'm gaming for hours on end the temp doesn't go over 66c but when it's idle it fluctuates from 38c all the way to 57c and its like big jumps for instance it could be 40c then straight to 52c I have had this issue since I upgraded at the end of December I used thernal grizzly paste I thought I hadn't mounted it properly or put to much of it on so in February I completely stripped the computer but I'm still getting the issue. I never had this problem running my fx 6300 running 4.5 at 1.5v for over a year 🤣it ran cooler