HP ProLiant DL585 Server - Manual (Page 93)

Installing hardware options
4-42 HP ProLiant DL585 Server User Guide
10. Close the PCI-X retaining clip (for full-length expansion boards only).
Figure 4-43: Securing the PCI-X retaining clip
11. Connect any required cables to the expansion board.
12. Reinstall the access panel.
13. Restore the server to its operating position in the rack.
14. Power up the server.