how to enable resizable bar how to enable in bios

as far as i can tell i have all of whats needed to do this but cannot find anything in dells support showing how to do this with my motherboard. heres some info 

precision 7530

https://www.nvidia.com/en-us/geforce/news/geforce-rtx-30-series-resizable-bar-support/

it says if i have a 3060 I'm ready to go so I'm assuming i may not need any kind of updates i can just run with the install from nvidia right? any info would be grateful for. sry English is not my first language