Users Guide

Table Of Contents
6. Remove the system cover.
7. Ensure that the interface cable is securely connected to the optical drive and to the controller.
8. Ensure that a power cable is properly connected to the drive.
9. Install the system cover.
Next steps
If the problem persists, see the Getting help section.
Troubleshooting a tape backup unit
Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
Steps
1. Use a different tape cartridge.
2. Ensure that the device drivers for the tape backup unit are installed and are configured correctly. See your tape drive
documentation for more information about device drivers.
3. Reinstall the tape-backup software as instructed in the tape-backup software documentation.
4. Ensure that the interface cable of the tape drive is connected to the external port on the controller card.
5. Perform the following steps to ensure that the controller card is properly installed:
a. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
b. Remove the system cover.
c. Reseat the controller card in the expansion card slot.
d. Install the system cover.
e. Turn on the system and attached peripherals.
6. Run the appropriate diagnostic test. For more information, see the Using system diagnostics.
Next steps
If you cannot resolve the problem, see the Getting help section.
Troubleshooting no power issues
Prerequisites
Ensure all power supplies are firmly seated, power cables are connected, and both power supplies are operating.
Steps
1. Swap the AC power cable with a known-good power cable.
If the system works with a known-good AC power cable, replace the power cable.
2. Check the status of the power indicator on the power supply unit (PSU).
If the power indicator is lit Green, reseat the PSU. If this does not fix the issue, test the system with a good PSU.
If the power indicator is lit Amber, this indicates a PSU fault condition. Replace the PSU with a good PSU and check the
indicator status.
If the issue is resolved, consider replacing the PSU.
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Troubleshooting hardware issues