152 Troubleshooting Your System3 Run the appropriate online diagnostic test (see "Using Dell PowerEdgeDiagnostics" on page 163).4 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.5 Open the system (see "System Cover" on page 66).6 Ensure that the interface cable is securely connected to the optical driveand to the controller.7 Ensure that the power cable is properly connected to the drive.8 Close the system (see "Installing the System Cover" on page 67).9 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 175.Troubleshooting a SCSI Tape DriveProblem• Defective tape drive• Defective tape cartridge• Missing or corrupted tape-backup software or tape drive device driver• Defective SCSI controllerAction1 Remove the tape cartridge you were using when the problem occurred, andreplace it with a tape cartridge that you know works.2 Ensure that the SCSI device drivers for the tape drive are installed and areconfigured correctly (see "Installing an Optical or Tape Drive" on page 91).3 Reinstall the tape-backup software as instructed in the tape-backupsoftware documentation.4 Ensure that the tape drive’s interface/DC power cable is connected to thetape drive and SCSI controller card.5 Verify that the tape drive is configured for a unique SCSI ID number andthat the tape drive is terminated or not terminated, based on the interfacecable used to connect the drive.
