Troubleshooting Your System 1698 Ensure that the controller card is firmly seated into the system boardconnector. See "Installing an Expansion Card" on page 115.9 If you have a SAS RAID controller, ensure that the following RAIDcomponents are properly installed and connected:• Memory module• BatteryIf you have a SAS backplane, verify that the cable connections between theSAS backplane and the SAS controller are correct. Ensure that the cablesare firmly connected to the SAS controller and the SAS backplane board.10 Replace the cooling shroud. See "Installing the Cooling Shroud" on page 93.11 Close the system. See "Closing the System" on page 91.12 Place the system upright and on its feet on a flat and stable surface,reconnect the system to the electrical outlet, and turn on the system andattached peripherals.If the problem persists, see "Getting Help" on page 185.Troubleshooting Expansion CardsNOTE: When troubleshooting an expansion card, see the documentation for youroperating system and the expansion card.WARNING: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. Before you begin thisprocedure, review the safety instructions that came with the system.1 Run the appropriate diagnostic test. See "Running the SystemDiagnostics" on page 173.2 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.3 Open the system. See "Opening the System" on page 90.4 Ensure that each expansion card is firmly seated in its connector.See "Installing an Expansion Card" on page 115.5 Close the system. See "Closing the System" on page 91.6 Place the system upright and on its feet on a flat and stable surface,reconnect the system to the electrical outlet, and turn on the system andattached peripherals.
