Like you saw in one of my last posts, which BIOS Settings you have to change for maximum performance on Dell PowerEdge 11th Gerneration, you can do the same also in 12th Generation.
First reboot the server and press “F2” to enter the “System Setup” and click on “System BIOS Settings”
In BIOS Main Menu please click on “System Profile Settings”
Set System Profile please to “Performance”
Now click on “Back” in the lower right corner.
Back in the main menu click “Finish”.
In the popup box please click “yes” to save changes.
If you see the “Green Box” you can click “OK” and restart your server.