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Major Causes Of Overheating In Laptops And How To Avoid It - Computers A lot people take an overheating laptop for granted, they believe its some little stuff that can fix up itself but the truth is: FREQUENT OVERHEATING DAMAGES THE MOTHERBOARD! You may also be surprised to know that most overheating problems are caused by PC users. It is worth is it you know the major cause of overheating in laptops, knowing this will help you avoid anything that could lead to overheating in your laptop. An overheating laptop freezes, restarts by itself or shuts down after it has been on for some time, typically 10-15 minutes. If you start it again, it does the same thing after just a few minutes, maybe seconds depending on how hot the PC microprocessor is. Sometimes, the PC could get so hot that it could boil your favorite noodles (LOL). You need to understand that the heat you notice in an overheating PC is generated at your microprocessor. Most Microprocessors (especially older microprocessors) normally produce heat once your PC is on as a result of the numerous heavy calculations it does while your PC is on. This heat is eliminated from your PC by a device called the heat sink, the heat sink is always at the vent space noticeable at the side or below your PC. When you allow this vent space to be blocked or you place your PC on an unclean surface especially one filled with dust or debris, the PC fan collects these dusts and debris into the heat sink, when these dust and debris accumulate over time, the PC cannot conveniently release heat again through these vents, the heat produced at the microprocessor is trapped back in your PC’s microprocessor and that leads to overheating. It is important you keep your PC away from dust and debris, placing your PC on top of a mattress is also not considered wise as little particles of foam also accumulate and block the vent. Newer PCs with low power microprocessors are better as they generate lesser heat and do not need a heat sink or fan to cool it. These PCs can be used on most surfaces, but never dusty surface . You need to understand that dust is in enmity with PCs. Besides blocking your vents, dust also has other harmful effects on your PC, so stay away from dust. Sometimes overheating is caused by a cooling system malfunction. Some laptops will show an error message immediately after starting if the microprocessor fan is not functioning properly. However in some cases the fan blades are just loose, broken, bad, or simply malfunctioning and won’t move enough air to cool the laptop. In this case, your CPU cooling system needs to be changed immediately, this should only be done by an expert engineer/technician as an error here can potentially damage your PC.