16. Lower the tab onto the PCI adapter faceplate. Rotate the adapter retainer clip clockwise until it covers
the tab at approximately a 45-degree angle. See the following illustration.
1 System Unit
2 Adapter Retainer Assembly (in the unlocked position)
3 Adapter Retainer Assembly (retainer seat down and the retainer clip in the
unlocked position)
4 Adapter Retainer Assembly (retainer seat down and the retainer clip in the
locked position)
5 PCI adapter faceplate (dotted lines)
17. Replace the service access cover as described in “Service Access Cover Replacement (Model 6C4)”
on page 431 or “Service Access Cover Replacement (Model 6E4)” on page 437.
18. On a Model 6C4, push the system drawer back into the operating position as described in “Returning
the Model 6C4 to the Operating Position” on page 430.
19. Connect the adapter cables.
20. On a Model 6C4, route the cables through the cable-management arm.
21. On a Model 6C4, close the rack doors.
On a Model 6E4, close the bezel door.
Chapter 9. Removal and Replacement Procedures 459