Dell MD1420 Hardware Owner's Manual page 31

1. Ensure that the following components are properly installed:
• Hard disk drives
• EMMs
• Power supply unit or cooling fan modules
• Control panel
• Backplane
2. Ensure that all the cables are properly connected and that there are no damaged pins in the connectors.
3. Run diagnostics available in Server Administrator.
If the test fails, see Getting Help.
Troubleshooting your enclosure 31