Troubleshooting An Optical Drive - Dell PowerEdge T20 Owner's Manual

5. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
6. Open the system.
7. Check the memory channels and ensure that they are populated correctly.
8. Reseat the memory modules in their sockets.
9. Close the system.
10. Enter the System Setup and check the system memory setting.
If the problem is not resolved, proceed with the next step.
11. Open the system.
12. If a diagnostic test or error message indicates a specific memory module as faulty, swap or replace
the module with a known good memory module.
13. To troubleshoot an unspecified faulty memory module, replace the memory module in the first
DIMM socket with a module of the same type and capacity.
If an error message is displayed on the screen, this may indicate a problem with the installed DIMM
type(s), incorrect DIMM installation, or defective DIMM(s). Follow the on-screen instructions to
resolve the problem. For more information, see
14. Close the system.
15. As the system boots, observe any error message that is displayed and the diagnostic indicators on the
front of the system.
16. If the memory problem is still indicated, repeat step 12 through step 15 for each memory module
installed.
If the problem persists after all memory modules have been checked, see

Troubleshooting An Optical Drive

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 came with the product.
1. Try using a different CD or DVD.
2. Enter the System Setup and ensure that the integrated SATA controller and the drive's SATA port are
enabled.
3. Run the appropriate diagnostic test.
4. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
5. Open the system.
6. Remove the front bezel.
7. Ensure that the interface cable is securely connected to the drive and to the controller.
8. Ensure that a power cable is properly connected to the drive.
9. Close the system.
If the problem is not resolved, see
68
General Memory Module Installation
Getting Help.
Guidelines.
Getting Help.