Note: Make sure that the adapter is seated correctly in the expansion slot
before you turn on the server. Incomplete installation of an adapter might
damage the system board or the adapter.
Adapter
Rear adapter
retention bracket
Front adapter
retention bracket
7. Rotate the rear and front adapter-retention brackets to the closed position.
8. Connect required cables to the adapter. Route cables so that they do not block
the flow of air from the fans.
9. Install the side cover (see “Installing the side cover” on page 101).
10. Lock the side cover.
11. Reconnect the external cables and power cords; then, turn on the attached
devices and turn on the server.
104 System x3400 Types 7973, 7974, 7975, and 7976: Problem Determination and Service Guide