Should I set all my fans to use CPU Temp?

[mogwai]

I have a Gigabyte Aorus X570 Pro and I am having an issue where the 2 fans connected to the 2 pump headers seem to be spiking up and down. In the bios should I set all my fans (CPU and case) to use the cpu temp as the measure? As at the moment some of them are set to cpu and some are set to system for the temperature source. They are all set to the Silent profile and the interval at 3.

 

[mogwai]

I am just using the Gigabyte Smartfan 5 software. But you can set it up in the BIOS as well as in Windows. Only the 2 case fans plugged into the 2 fan/pump headers are going up and down all the others are constant at idle.

 

[mogwai]

I will have to review what the 2 fans on the pump headers are set to. In the app they are all set to the same fan curve. The strange thing is they do not do it every day despite the temperature in the room being fairly constant.