I recently built my first pc, it is now about a week old. Starting yesterday, my CPU has been running extremely hot. As soon as I turn on my pc, the CPU fan starts spinning quite fast and is very loud. The program Core Temp says my CPU is running around 55-65 degrees Celsius when idle, and gaming for only 2-3 minutes increase the temperature to 80-90 degrees celsius. I have a Ryzen 5 3600 with the stock cooler (Wraith Stealth Cooler), but just ordered a different CPU cooler because I have read that the stock one does not work very well. However, I fear this is not just a cooler problem, as the CPU should not reach 65 degrees immediately after booting with no programs running. Does anyone have any idea what is going on?