This is the first step when you find your computer overheating. Open the case, and then check if all fans are still working. If at least one is not working anymore, consider doing repairs or getting a replacement.
Regularly clean your computer.
It is essential to regularly clean your computer, especially the cooling fans. The fans attached inside the computer case is used for active cooling of the computer. Over time, dust and dirt can accumulate in these fans. The accumulate dirt can slow down or, in worse, stop fans from working. If fans fail in expelling the hot air fast enough, some internal parts will eventually overheat.
To clean your cooling fan:
1. Shut down your PC.
2. Open the computer case.
3. If there is excessive dirt inside the computer case, take out the computer fan.
4. You can use compressed air, small electronic vacuum or duster, or damp cloth in cleaning the fan.
5. If you use moisten cloth, make sure that the cooling fan is dry or there is no remaining moisture before connecting it again.
Clean other computer parts as well such as the monitor, mouse, and keyboard.
Before cleaning any hardware component, make sure that your machine is turned off. Otherwise, your computer is susceptible to electrostatic discharge that can damage its parts and you are also prone to grounding yourself.
Before applying any cleaning procedures to hardware, make sure to check its manufacturer’s manual if they have provided you with the recommended instructions in cleaning or maintaining it.
Do not spray or spill any liquid directly in computer parts.
Do not limit the air flow around your computer.
Place your computer in a room that can provide sufficient air flow. Make sure that it is not sitting right next into other objects that prevent air circulation, like walls or other computers. There should be at least two to three inches of space on both sides. Since most of the hot air comes out from the air vent at the back end of the computer case, this part should be completely clear and open.
Move your computer to a cooler and cleaner environment.
Move your PC in a place with proper ventilation. It is important that the physical location will not contribute further heat to the computer. Make sure that your PC is not placed near a furnace, refrigerator, cooking appliances, and other things that can blow hot air or can transfer heat into your computer system.
To prevent your PC from overheating, it is advised to place it in an air-conditioned room.
Note: be careful when moving your computer in order to avoid damage on sensitive components inside it like the CPU, graphics card, hard drive, and motherboard.
Use your computer with case closed.
It seems logical to let the case open while the computer is running to keep it cooler. This is true. However, dirt and dust will accumulate and clog the computer fans faster when the case is opened. This can cause the fans to slow down or fail at cooling your computer.
Upgrade your CPU fan.
The CPU is the most important component inside the computer. When you are running demanding applications, the CPU and graphics card induce more heat. It can get so hot that it can be cooked.
Consider purchasing a high-quality and larger CPU fan that can keep the CPU temperature lower than the pre-built CPU fan in your computer could.
Consider installing a component-specific fan.
If you have observed that the other components are overheating, install a component-specific fan to cool them down.
Consider installing a case fan.
This small fan can be attached to either the front or back of the computer case. There are two types of case fan: one that can draw cooler air into the case, and one that can expel warm air from the case. Installing both is a great way to cool your computer.
Turn off your computer when not in use.
A computer continues to produce heat as long as it running, even if you aren’t using it. If you will only have a few minutes of inactivity, at least set your computer to hibernation. Basically, it will also turn off your computer but the opened files and programs are stored in your hard disk.
Also, unplug external hardware of no longer use like printers and scanners.
Overheating can destroy and shorten the lifespan of components inside your computer. The major upside of keeping your computer cool is that it can help you avoid expensive repairs or unnecessary upgrades.