- Notes, cautions, and warnings
- Copyright
- About your system
- Using The System Setup And Boot Manager
- Installing System
Components
- Recommended Tools
- Opening And Closing The System
- Bezel
- Chassis intrusion switch
- Inside the system
- Thermal Sensor
- Power switch
- Input/Output (I/O) panel
- Hard drives
- Removing the hard drive cage
- Installing the hard drive cage
- Removing a 3.5-inch hard drive carrier from the hard drive cage
- Installing a 3.5-inch hard drive carrier in the hard drive cage
- Removing a 2.5-inch hard drive(s) from the optical drive bay
- Installing a 2.5-inch hard drive(s) in the optical drive bay
- Removing a 3.5-inch hard drive carrier from the hard drive bay
- Installing a 3.5-inch hard drive carrier in the hard drive bay
- Removing A Hard Drive From A Hard-Drive Carrier
- Installing A Hard Drive Into A Hard-Drive Carrier
- Optical drive
- System memory
- Sample memory configurations
- System fan
- Expansion cards
- Processors
- Power supply unit
- System Battery
- System board
- Troubleshooting
your system
- Power LED Diagnostics
- Memory Beep Code
- Troubleshooting System Startup Failure
- Troubleshooting external connections
- Troubleshooting the video subsystem
- Troubleshooting a USB device
- Troubleshooting a serial I/O device
- Troubleshooting A NIC
- Troubleshooting A Wet System
- Troubleshooting A Damaged System
- Troubleshooting the system battery
- Troubleshooting A Non-Redundant Power Supply
- Troubleshooting cooling problems
- Troubleshooting The System Fan
- Troubleshooting System Memory
- Troubleshooting An Optical Drive
- Troubleshooting A Hard Drive
- Troubleshooting Expansion Cards
- Troubleshooting The Processor
- Using System Diagnostics
- Jumpers and connectors
- Technical Specifications
- System Messages
- Getting help
Dell PowerEdge T20 Owner's Manual
Troubleshooting A Non-Redundant Power Supply
- 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.
- Press the self-diagnostic button on the power supply.
- If the power supply status indicator is not lit, turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
- Open the system.
- Reseat the power supply and the cables.
- Close the system.
- If the problem persists, see Getting Help.
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