How to set the fan speed
In hot summer or scenarios that require efficient heat dissipation, the fan speed setting directly affects the heat dissipation effect and noise level. This article will detail how to adjust the fan speed based on your needs, along with relevant data and recommendations.
1. Basic principles of fan speed

Fan speed is usually measured in RPM (revolutions per minute). The higher the speed, the greater the air volume and the better the cooling effect, but the noise will also increase. Properly setting the speed requires balancing cooling needs and noise tolerance.
2. How to set the fan speed
1.BIOS/UEFI settings: Most motherboards support adjusting fan speed through the BIOS. After entering the BIOS, find "Hardware Monitor" or similar options to adjust the speed curve manually or automatically.
2.operating system software: Some motherboard manufacturers provide special software (such as ASUS AI Suite, MSI Afterburner) that can directly adjust the fan speed in the system.
3.Third party tools: SpeedFan, Argus Monitor and other tools support more flexible speed control and are suitable for advanced users.
3. Speed recommendations in different scenarios
| scene | Recommended speed (RPM) | Remarks |
|---|---|---|
| Daily office | 800-1200 | Low noise, meeting basic heat dissipation |
| Gaming/High Performance | 1500-2500 | High air volume, suitable for high GPU/CPU load |
| silent mode | 600-800 | Use at night or in quiet environment |
4. Optimization techniques for fan speed
1.Temperature dependent regulation: Set the rotation speed to be linked to the temperature. The rotation speed will be reduced when the temperature is low and will automatically increase when the temperature is high.
2.Multi-fan collaboration: Multiple fans in the chassis can be set to different speeds. The inlet fan is slightly lower than the outlet fan, forming a positive pressure difference to prevent dust.
3.Regular cleaning: Dust accumulation will cause the fan efficiency to decrease, requiring a higher speed to achieve the same effect.
5. Frequently Asked Questions
Q: Will the fan speed be too high to damage the hardware?
A: Usually not, but long-term high speed may shorten the fan life. It is recommended to prioritize optimizing the air duct design.
Q: Why does the speed displayed by the software differ from the actual speed?
A: It may be a software compatibility issue. It is recommended to try different tools or update the motherboard firmware.
6. Latest cooling technology trends
| Technical name | Features | Applicable scenarios |
|---|---|---|
| Liquid bearing fan | Lower noise, longer life | High-end silent host |
| Magnetic levitation fan | Ultra-high speed, low friction | Server/Workstation |
By properly setting the fan speed, you can not only improve heat dissipation efficiency, but also create a more comfortable usage environment. It is recommended that users adjust flexibly according to actual needs and maintain the cooling system regularly.
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