Chassis fans must operate based on BIOS settings, yet they often fail to do so.
Chassis fans must operate based on BIOS settings, yet they often fail to do so.
The fans are the ones included with the Corsair 4000d Airflow (3-Pin). They connect to Cha_Fan 1 and 2 on my Mainboard (ASUS TUF Gaming B550-Plus Wi-Fi II). The BIOS indicates no RPM for Cha_Fan 3, suggesting the connection might be correct. Possible issues could involve driver settings, fan speed calibration, or firmware updates.
DC control is required for these 3-pin fans. The fourth pin functions as PWM, so using PWM won't work. Switch to QFAN mode and select DC as the control method for the header connections.
If no device is connected to the Chassis Fan 3 header, it will display N/A. You might need to adjust the fan settings manually in BIOS. Look for a "PWM/Voltage" option on the display where you configure fan curves—choose Voltage for 3pin fans.
I've already attempted to change from Auto to DC, but it didn't resolve the issue.
I completely understand, but I’m just not smart enough to grasp this. They really do have work. Sorry if it bothers you.