

Lower the default to 300 RPM to 450 RPM and Save the changes.The default value should be 600 RPM (Revolutions Per Minute). Find the setting that controls the CPU fan RPM alerts.(This section may vary with your motherboard’s model) Navigate to the CPU fan settings with in Advanced Settings.Get into BIOS by pressing F1, F10 or Delete key upon startup.To change fan speed lower limit, follow these steps: Set the “CPU Fan Speed Low Limit” to 200 RPM in BIOS configuration. Set CPU Fan Speed Lower Limitĭoes the CPU fan is running at a required RPM? Most of the time, the Asus fan error gives you a hint that the fan is underperforming concerning its RPM.įor users who are using NZXT, Corsair fan with lower revolution speed, the system may not be able to correctly detect it. Ensure that the CPU FAN cable is securely installed to the CPU_FAN connector instead of the CHA_FAN.H100i or H100i V2 and still fan speed error pops up, connect the hydero pump to the AIO_PUMP header (not in CHA_FAN).


The most common reason that triggers this error is. If the fans don’t spin properly then it may cause an increase in CPU temperature, resultantly it can damage internal hardware. This error shows that the motherboard safeguard feature is working fine. The error message sometimes varies but you will see a screen similar to this: “Error: CPU fan has turned off!” or “CPU Fan error” What Causes ASUS CPU Fan Errors on Startup? Usually, the ASUS fan error appears on bootup or during the startup process.
