Things You'll Need
Instructions
Turn on the Xbox 360 console with a game or DVD in the disc drive and let it run for about five minutes. This will test the temperature as if the game console was running normally.
Hold the infrared heat sensor up against the side of both of the Xbox 360's gray ventilation grills and take the temperature.
Check the temperature again in approximately 15 minutes. If the temperatures exceed 95 degrees Fahrenheit as specified by Microsoft, you may need to invest in an intercooler to maximize the console's performance.