To restate, the Optiplex team has stated that the fan noise is within design parameters and working as designed. Since the article was released on May 7, 2021 =BIOS Causes the Fan to Overspin on the OptiPlex 3080, 5080, and 7080, and Precision 3440 Small Form Factor there have been four BIOS updates after the aforementioned 1.3.12. All users should update to the latest BIOS.
I had this problem when I upgrade to1.3.2 which ı have sorted out by downgrading to 1.3.1 Now unfortunately system does not allowed me to downgrade back to 1.3.1. I can only downgraded to Bios 2.0.2 which did not solved the problem. Any body else have the  same problem? Any solution or recommendation ???    
Optiplex 3080 fan noise after bios update to 2.1.1