From what our team could find out about the BIOS 2.9.0., there were issues withS3 that needed to be solved. This was part of the reason engineering team removed it from the support site. The latest BIOS 2.10.3 was web posted on 04/14/2022 and contains the updates/fixes needed to address anything with BIOS 2.9.0.
I recently downloaded and upgraded my 3080 Optiplex computers with the newest 2.9.0 BIOS, but looking at Dell Support's drivers page today these files are gone. Why?
Optiplex 3080 2.9.0 BIOS gone from driver downloads, why?