If you need more information about SR-IOV, please visit the Blog of my friend Didier van Hoye (WorkingHardInIT).
First reboot the server and press “F2” to enter the “System Setup”
In BIOS Main Menu please click on “Advanced”
Now click on “PCI configuration”
In the “PCI Configuration” Menu change “SR-IOV Supported” to “enabled”:
Now press “ESC” on your keyboard to leave the menu.
Back in the “Advanced Menu” click on “Exit” in the top right corner.
In the next menu please save the settings and restart the server. After the restart the changes will take effect.