Ryzen 3700x with stock cooler

[llubbo]

Hello

 

I finished my build with ryzen 3700x with stock cooler (paste: Thermal Grizzly Kryonaut), and it is very annoying hear every few minutes sometimes seconds to hear how cpu cooler starts spinning from low to high rpm. Case has 3 140mm fans in front and 1 on back and 1 on top. Case is very well cooled. I also set up couple times curve for fan in bios, but temperatures are peaking often and cpu cooler is spinning HI-LO LO-HI all the time. I am going crazy. Max temperatures never exceed 81C

 

Is only solution buy new cpu cooler? Or did I something forgot to take care about?

 

Thanks for any advice

[xebadir]

Sounds like you might have a defective unit, as the Wraith Prisms usually are ok under at least some load and don't normally end up running at max (and are way better than the stealths). At least on the benchmark tests even under substantial load I've seen people don't tend to get that higher temperature, so has me wondering. What are the rest of your specs for the system, how is your case ventilation and what is driving load on the system. 

[llubbo]

Its not running max all the time, deepens sometimes 2700rpm sometimes 2900rpm sometimes 3000rpm 3300rpm. I dont understand. 

Check CPUz and also photos of case. (As I said, 3 front 140mm intake, 1 back 140mm exhaust and 1 top 140mm exhaust)