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Fan #3 RPM stuck in Hydro X Series Fans setting.


Monstieur
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I have a Commander Pro with Fan #3, #4, and #5 connected to radiator fans, Fan #6 connected to the XD5 pump, and Temp #1 connected to the XD5 temperature sensor.

 

Under "Performance" I have set Fan #3, #4, and #5 to "Hydro X Series Fans", and Fan #6 to "Hydro X Series Pumps".

 

Fan #4 and #5 change RPM with temperature and go to 0 RPM when the temperature is low, but Fan #3 is stuck at a fixed RPM.

 

If set all the fans to a "Custom 1" performance setting with a custom curve based on "Commander Pro Temp", all the fans including Fan #3 respond to the curve.

 

If I change the fans back to "Hydro X Series Fans", Fan #3 alone remains stuck at the last used RPM from the custom curve.

 

I've force updated the firmware with no effect.

Edited by Monstieur
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Under the general settings in iCUE, change fan #3 from Auto to either DC or PWM, whichever is appropriate. See if it responds.

 

If not, physically unplug fan #3 from the C-Pro, then re-connect. Sometimes this alone fixes general "stuck fan" issues.

 

All the fans are set to 4-Pin correctly. Reconnecting the fan and power cycling the Commander Pro didn't make any difference.

 

I don't think it's a hardware issue as setting a custom curve works correctly for all fans. It seems like an issue with the "Hydro X Series Fans" algorithm. Today it's running Fan #5 at 0 RPM, while Fan #3 and Fan #4 are stuck at the last used RPM from the previous setting.

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