Question RTX 3080 fan's min 30%

[Ponez]

Hi I have a inno3d rtx 3080 and after 2 years I've realized the fans never turn off, I had an asus gtx before and that had it's fan off for most of the time, I've tried INNO3D TunelT OC Utility and MSI Afterburner to force it turn off but minimum fan speed is always at 30%

https://imgur.com/a/tOP1UVF

View: https://imgur.com/a/tOP1UVF

as you can see I've set it to 0 when it's below 50 but it's still at 30 ?
what am I doing wrong

 

[Danra]

Some Nvidia GPUs have a switch for quiet mode, however, some will not go below 30% even in BIOS fan control. Don't worry about the fan blowing at 30%, they will last over 6 years, unless a fan motor is weak or defective from the factory. The only negative with fans blowing all of the time is the GPU cooler will need to be more frequently cleaned with a can of compressed air. Every couple of months should be okay unless the fans run at a high percentage most of the time, such as in gaming or video encoding/enhancing.

For example, the fans on my computer case have lasted over 13 years and continue to run just fine.