Bios Mods -The Best BIOS Update and Modification Source

Hello, First post here so please if I mess up please guide me.
I am looking for a SLIC 2.1 modded bios for a Dell Optiplex 790 Any version over A11
I see the newest is A22 on the Dell website.

Bios link : https://downloads.dell.com/FOLDER0507855...90-A22.exe
https://www.mediafire.com/file/wnppq2bq5...ls.rw/file

I hope this report link works....

I updated the original post with all the information I could find. I hope it is enough.
I thank anyone that can help me with this.