In fact, if you have been using a computer for a long time, you may have experienced that when you start the computer, the CPU fan is particularly loud, especially when the computer starts running different software. Where does this noise come from? Is there a way to solve it? Below is a simple introduction to the causes of loud CPU fan noise at startup and the solutions for reference.
2. The computer fan inside the case is not securely installed, causing vibrations when the fan rotates, leading to sudden increases in case noise.
3. Dust accumulation on the case fan increases resistance when the fan rotates, resulting in loud computer fan noise.
4. The last possible cause is viruses and malware. Nowadays, most computer fans are automatically temperature-controlled. If the computer is infected, the CPU usage may become extremely high, causing the CPU to heat up. In this case, the computer fan will automatically speed up to lower the CPU temperature, which can also lead to loud case noise.
Expert analysis: The longer the computer is used, combined with the fact that the host has been moved by someone, or due to the continuous operation of internal components like the hard drive and fan, sometimes screws may become slightly loose, causing increased vibrations and louder noise. Additionally, if used for too long, the rotating shaft of the fan may become increasingly stiff due to lack of lubrication, resulting in higher noise levels.
Quick action: For this minor issue, if the computer is still under warranty and you do not want to break the warranty seal by opening the case, just take the host to a repair station for maintenance by the manufacturer. If you are a DIY user or the host is out of warranty, you will need to open the case, tighten all visible screws, add a drop or two of lubricant to the fan’s rotating shaft, and clean the dust from the case. This will significantly reduce the noise of your host.
Well, the above is a simple introduction to the causes of loud CPU fan noise at startup and the solutions. I hope it helps and benefits you while using your computer. In fact, waiting to repair the CPU fan when it malfunctions is often not enough; we also need regular maintenance, which means we should periodically clean and dust our host and CPU fan to extend the lifespan of our computer.
What to do if the computer fan is not spinning
Those familiar with computers know that there is a small fan inside the computer, and its role is to help cool the computer. Therefore, when the fan is not spinning, we need to pay attention because a computer without a cooling fan is easily damaged. So, what should we do if the computer fan is not spinning? Let’s take a look at the solutions.
Steps to follow:
First, consider whether the fan is broken. If it is broken, it can only be repaired or replaced.
If the fan is normal but not spinning, there may be three situations:
1. Dust has accumulated too much inside the fan. When cleaning, you need to remove the fan from the heat sink, open the bottom oil seal, and use a cotton swab or paper to wipe off the dust. You can also use a wooden toothpick to slowly scrape off the dust.
2. The fan’s rotating shaft is rusty. Disassemble the fan and apply some lubricant to the rotating shaft. Generally, use a straw or tweezers to dip the lubricant and drop a drop on the axis; do not use too much and avoid using cooking oil.
3. Issues with the motherboard. In minor cases, it could just be a damaged power transistor; more complex issues may involve many components, such as the temperature control circuit. In IBM laptop repairs, if the temperature monitoring circuit like H8 has issues, it will report a Fan error. In this case, it can only be sent to a professional repair shop.
The above are the solutions for when the computer fan is not spinning. By following these methods, the computer fan should return to normal. If you like it, follow the “Electronic Technology Encyclopedia” public account and scan the QR code below to follow us!
