This can happen for a number of reasons such as lack of ventilation, dust or malfunctioning parts. If you begin to notice that your computer is hotter than normal, you will want to know how to check your CPU temp. Therefore, please do remember to backup important files and data to an external storage device before you trying below tips.
For example, you can choose a minimum and maximum fan speed. There are multiple add-ons available for Core Temp so the user can add additional capabilities. For example, the Core Temp Monitor app allows users to monitor devices on Windows and Android phones.