This is an issue i am having for about a week now. The GPU( Palit GameRock RTX2080) fans spins up, then down, then up, down and so on. As you can see in the clip above, temperatures are fine <70ºC. It only happens in games and other 3D applications, and it gets loud at 3000 rpm. I have had the GPU since October last year, the system is clean of dust as i dust it every 3 months or so and the case has dust filters. It had the same behavior on an Z370 board and on my new B450 board. Things i tried: - reinstall Windows - an older driver version(used DDU) - installed MSI Afterburner and set a custom curve and a fixed rpm - uninstalled MSI Afterburner and RTSS - tested in Valley bench, Borderlands 2, ArmA 3 and Dirt Rally 2.0 - switched from BIOS 1 to BIOS 2 and back WTF is going on ? i never seen anything like it, if a GPU is hot it spins up and stays there until a low temperature is reached, it dose not bounce like that. I will try a very old driver, 3xx or whatever the oldest RTX 2080 driver i can find when i get home and uninstall GeForce Experience. Did you experience something similar, how did you fix it ? Thanks.