Most common questions used to investigate
Do you know to check your laptop's cooling fan?
Have you cleaned the inside of your computer recently?
Have you done a hard reset?
Do you recently service the computer?
Do you check the wires?
Have you replaced the system fan recently?
Common conclusions
The best way to check is to allow your computer to point it out to you. When you start a computer, it could end up in a boot loop and fail to restart the system. Run a diagnostic check and you'll know if the problem is with your cooling fan or some other part such as a processor or a hard drive. If you've never done this before or unsure how to go about it, take it to a computer repair professional.
Sometimes, dust and dirt get accumulated just like how it happens in the fans at home. The simplest way to fix this problem is to clean the exterior vents to remove the buildup of dust. But ensure that you do this when the computer is off. Remove the dust completely from the system and turn it on to see if the problem is fixed.
Another good way to fix this problem is to do a hard reset as this will reset the thermal values recorded in memory. This is your last resort if nothing else works and you want to use the computer. Keep in mind though that other values will also get reset, so you may have to do a few changes to the configuration depending on what you have customized.
If it has been some time since you serviced your computer, consider doing it now through a professional computer repair company. They will clean all the internal components and will let you know if the fan needs to be replaced. If so, they can handle that for you as well. This is the best choice for those who aren't too comfortable opening the computer or for those who have little to no idea in this area.
Sometimes, the solution will be so simple that we may miss seeing it. If you're opening the computer, check to see if the wires are connected properly to the motherboard. Specifically, trace the wires of the system and CPU fans to see if they end up in the motherboard. While you're there, dust all the internal components thoroughly to prevent the accumulation of dust.
Maybe it is time to replace it. Like all mechanical parts, your computer fans can also malfunction or break with repeated use, so consider replacing it with a new one.
If you've done it through a professional and are still under warranty, he or she may be able to fix the problem free of cost. If there's no warranty, you may have to pay some more money, but the problem will get fixed. It could be due to faulty wiring, too much dust accumulation, and more.
References
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