Heat buildup can cause problems for any computer. Generally, when temperatures inside the computer case rise above 35 degrees Celsius (95 degrees Fahrenheit), the risk of damaging important internal components increases greatly. The most common cause of a computer getting too hot is the accumulation of dust inside the computer. This Section describes how to prevent heat-related issues from occurring.
Use compressed air and a lint free cloth to blow and wipe any dust build up you can see. Pay particular attention to any crevices, plastic shrouds, and heat sinks. Thoroughly clean any dust filters too. To clean fan blades, hold them steady and wipe or blow each blade individually