There are many programs and pieces of software that you can use to monitor the temperatures of your central processing unit and the graphics processing unit. However, one way to do this without a special program of any kind is through your personal computer’s BIOS system, or (Basic Input/Output System).
To accomplish this, the first step is in accessing the BIOS. To access the BIOS, simply restart your PC, and as it begins to boot up hit the delete key (you may have to hit this key between one and three times for it to take effect). If you are not a computer programmer or specialist, the BIOS screen can look a little scary or intimidating when opening it. You may also worry about accidentally making changes to it and upsetting the working order of your computer. These are normal feelings to have, but keep in mind that you can always discard any changes you made, either accidentally or on purpose, while exiting the BIOS.
On the screen in the BIOS section you should see the phrase CPU temperature. If you do not see it, simply navigate to the page where it is located. Here you can monitor the CPU temperature every time you start or restart your PC.
Although checking the CPU temperature this way is certainly possible, there are a few drawbacks to checking the temperature in this manner. First, depending on your computer it can take forever and a day to restart your computer every time you want to check the temperature. Second, and the most obvious reason, is that you will usually want to check your temperatures when your computer is under a heavy load, such as when playing hours of video games on the ultra settings.