Fans Full Blast On Boot/Restarts. Commander Core XT (6 LL120 Fans)

[Scoobie]

Hey so I'm having an issue. I have all 6 LL120 fans connected to my commander pro XT and in proper order. I have balanced preset enabled under cooling. Works well once windows is going but when I boot the computer or restart it then all the fans go full blast up to 100% until I'm in windows and icue gets recognized. I have not used any temp probes that came with the XT. 

[Seth-2023]

On 12/26/2022 at 6:57 PM, Scoobie said:

Hey so I'm having an issue. I have all 6 LL120 fans connected to my commander pro XT and in proper order. I have balanced preset enabled under cooling. Works well once windows is going but when I boot the computer or restart it then all the fans go full blast up to 100% until I'm in windows and icue gets recognized. I have not used any temp probes that came with the XT. 

Have the same issue, did you solve this issue? 

[c-attack]

The default fan curves on the Commander XT typically use CPU temp as the control variable.  However, CUE needs to be running to get that data and the controller can't fetch it when CUE is not running.  The intended control source is a temperature probe sensor and there are two slots on the device.  This can be read at all time since it is a native data source.  If you are running a water cooled system, you connect a liquid temp probe to this slot.  If air cooled, then you need air temperature. 

 

For most users the sensor end of the 10K thermistor probe is best placed somewhere near the rear exhaust.  This can be placed in or outside of the case, but exit air temperature is a good measure of whether the internal case temp is increasing or decreasing and that is the primary responsibility of your case fans.  Install one of the temp probes from the box.  Then go to "cooling" and hit the yellow + to create a custom curve.  First, change the 'sensor' to the temp probe.  It should have a name like "Commander XT Temp #1".  Then click on of the shape tools in the lower right corner under the graph.  Those are for water cooling, but will be in the general neighborhood of where you want to be.  Then stretch it to fit your environment.  There is no such thing as universal curve and everyone will have unique parameters for their physical build and hardware, plus local environment.  You'll need to learn the typical range, but you will have a consistent "idle exit air temp" and fully loaded exit air temp which can be used to set the min/max speeds you are willing to tolerate.