Real-time monitoring of CPU temp will give you a good idea of your system load during normal use and heavy work such as gaming. For this purpose, the best option would be to use hardware software that comes with your system. You will instantly know the temperature of your processor while you receive the minimum, maximum, and current readings and other information like fan speed and CPU usage. This continual temperature monitoring will let you detect sudden rises or prolonged high temperatures that might damage your machine. BIOS check would only reveal a snapshot of the temperature, while real-time monitoring will show you much more, mostly how your CPU handles stress conditions. Besides being a great tool for identifying cooling problems, monitoring will also optimize your machine while you still make sure your system is protected from heat-related risks.