To ensure that, the CPU is tested under a constant load, please follow the following guide to Prime95
The download link can be found here.
Create a new folder on your desktop and extract the zip file into this new folder.
After launching the executable application named "prime95.exe" a small windows should pop up. A checkmark should be set to "Small FFTs"
After the test is completed, please follow the guide for HWiNFO.