Question AIO Radiator Fans (CPU_FAN) are stuck at a constant 1500 RPM ?

Aug 16, 2024
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Hi there,

So, I have a TH420 ThermalTake AIO Cooler placed on the front of my case. And I have had the build for 4 months now but never really took into consideration on how loud my AIO fans are.

I am using a Asus Prime B650 Motherboard. Went into BIOS to check the speed of the fans and see If I can lower them, however, even If I change the curve on Qfan, the fan is still stuck on 1480-1500RPM.

I also installed Armoury Crate to check, and saw that my CPU fans has a stuck range of 1450-1500RPM on whatever % I put on the curve.

So I checked in the motherboard to see if I have my connection right. And yes I do, my AIO Pump is connected to the aio_fan and the fans are connected to the CPU_FAN connector. I also checked if the CPU_FAN is a 4-pin connector which allows rpm control, and in this specific motherboard yes it is.

Anyone had this issue and knows any fix? Thanks in advance