HPE ProLiant DL20 Gen10 User Manual page 140

10. Remove the riser slot blank.
Riser slot 1
Riser slot 2
Retain the screw for future use.
11. Make sure that any switches or jumpers on the expansion board are set properly.
For more information, see the documentation that ships with the option.
12. Install the expansion board.
Installing an expansion board 140