Oracle SPARC S7-2 Service Manual page 95

Be sure to connect the SAS cable for storage drives 0 through 3 (HDDs 0-3) to the connector
that is farthest from the riser in which the HBA card is installed. Otherwise, the server will
incorrectly identify the storage drives when it is powered on.
3. Raise the green-tabbed release lever on the PCIe riser to the open (up) position,
and then gently press the riser into the motherboard connector until it is seated
(1).
Ensure that the rear bracket on the internal HBA card in PCIe slot 4 is connected
4.
to the slot in the server chassis side wall.
If the bracket is not connected, remove the riser and reposition it so that the rear bracket
connects to the side wall, and then gently press the riser into the motherboard connector.
5. Slide the plastic PCIe card retainer, which is mounted on the side of the chassis,
toward the back of the server to secure the cards installed in the riser (2).
Install the PCIe Riser Into PCIe Slots 3 and 4
Servicing PCIe Cards 95