HP ProLiant DL580 G3 Server - Manual (Page 87)

Expansion board options 87
2.
Extend or remove the server from the rack ("Extending the server from the
rack" on page 38 ).
3.
Remove the access panel ("Removing the access panel" on page
40 ).
4.
Remove the expansion boards from slots 3 and 4, if installed, to gain access
to the mezzanine connectors.
5.
Remove the expansion slot covers from slots 1 and 2.
6.
Use the guide pins to align the mezzanine board, and seat the mezzanine
board onto the system board.
7.
Tighten the three thumbscrews to secure the mezzanine board.