"Buzz, buzz..." Every time I open my laptop in a quiet library or cafe, this sound makes me want to close the computer and run away! Everyone's eyes are looking at me as if I brought a strange machine. Friends, if you are also troubled by this trouble, don't worry. Today, we will completely solve this annoying problem.
If you encounter this problem, you can visit a nearby computer repair shop to check it out. The most common reason is the internal dust accumulation problem. The repairman can help you disassemble the machine to clean the dust and replace the heat dissipation silicone. In many cases, this can solve the problem.
But if the fan still keeps spinning after cleaning, you need to determine the real reason for the noise, which is very simple.
Determine the cause of fan noise.
Laptop fan noise is usually caused by the following factors, ranked in order of commonness:
- Dust accumulation (most common)
- Aging of thermal grease (causing CPU/GPU overheating and the fan to spin wildly)
- Fan bearing wear (common in laptops that have been used for a long time)
- Software problem (background programs occupy too much CPU, forcing the fan to run at high speed)
- Deformed or loose fan blades (may occur in computers that have been dropped or hit)
Solution 1: Clean the dust (DIY)
Applicable situations:
The laptop has been used for more than 1 year without cleaning
The air outlet is obviously dusty
The fan sound is like the sound of "whoosh" air flow, not the "creaking" mechanical noise
Operation steps:
Shut down, unplug the power supply, and remove the battery (if removable)
Use a can of compressed air to blow the heat outlet and keyboard gap
Remove the back cover to clean the dust
- A screwdriver is required
- After removing the back cover, use a soft brush or compressed air to clean the fan and heat sink
- Be careful not to use too much force to avoid damaging the fan blades
Solution 2: Replace the thermal grease (suitable for laptops older than 2 years)
Applicable situations:
High temperature and the fan running wildly after cleaning
The laptop has been used for more than 3 years, and the heat dissipation performance has decreased
Operation steps:
Remove the back cover of the laptop and find the heat dissipation module of the CPU and GPU
Wipe off the old silicone grease with alcohol cotton pads (Isopropyl Alcohol 90 %+)
Apply new silicone grease
Reinstall the heat dissipation module
Solution 3: Replace the fan (bearing aging/severe noise)
Applicable situations:
The fan makes a "creaking" or "squeaking" metal friction sound (bearing damage)
The noise is still loud after cleaning and replacing the silicone grease
The fan does not rotate smoothly, and there is a sense of jamming
Operation steps:
Determine the notebook model
Purchase the corresponding model of fan
- For example: Amazon - MacBook Pro Fan Replacement
Disassemble and replace (refer to YouTube tutorial)
Solution 4: Check for software issues
Applicable situations:
The fan suddenly spins wildly, but the computer does not feel hot
Occurs just after updating the system/installing new software
Operation steps:
Windows users:
Open Task Manager (Ctrl+Shift+Esc) to see which program is using a high CPU usage
Disable unnecessary startup items (Task Manager → Startup)
Update BIOS and drivers (download from the notebook's official website)
Mac users:
Open Activity Monitor (Activity Monitor) to check CPU usage
Reset SMC (Shutdown → Shift+Control+Option+Power button)
If your laptop has similar problems, don't hesitate to check the fan status. If the above methods are ineffective or you don't want to do it yourself, you can find a reliable computer repair shop to handle it.
This guide has helped you solve your fan noise problem! For more information on laptops， please visit: BatteryMall.com/blogs/suppor
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