Troubleshooting Your System 171Troubleshooting an Optical DriveWARNING: 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 Try using a different CD or DVD.2 Enter the System Setup program and ensure that the drive’s controller isenabled. See "Using the System Setup Program Navigation Keys" onpage 58.3 Run the appropriate online diagnostic test. See "Running the SystemDiagnostics" on page 181.4 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.If the problem is not resolved, proceed with the next step.5 Open the system. See "Opening the System" on page 85.6 Ensure that the interface cable is securely connected to the optical driveand to the controller.7 Ensure that a power cable is properly connected to the drive.8 Close the system. See "Closing the System" on page 86.9 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 is not resolved, see "Getting Help" on page 193.Troubleshooting a Tape Backup UnitWARNING: 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 Try using a different tape cartridge.2 Ensure that the device drivers for the tape drive are installed and areconfigured correctly. See your tape drive documentation for moreinformation about device drivers.
