- Notes, cautions, and warnings
- About your system
- Using the System Setup and Boot Manager
- Installing and
removing system components
- Recommended tools
- Front bezel (optional)
- Opening and closing the system
- Inside the system
- Chassis intrusion switch
- Optical drive (optional)
- Hard drives
- Removing a 3.5 inch hard-drive cage
- Installing a 3.5 inch hard-drive cage
- Removing a 3.5 inch hard drive from the hard-drive cage
- Installing a 3.5 inch hard drive into the hard-drive cage
- Removing a 2.5 inch hard-drive cage
- Installing a 2.5 inch hard-drive cage
- Removing a 2.5 inch hard drive from the hard-drive cage
- Installing a 2.5 inch hard drive into the hard-drive cage
- LED module
- Control-panel board
- Cooling fans
- Cooling shroud
- System memory
- Internal USB memory key (optional)
- Expansion cards and expansion-card risers
- iDRAC7 Enterprise card (optional)
- System battery
- Processor
- Power supply unit
- System board
- Troubleshooting
your system
- 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 the power supply
- Troubleshooting cooling problems
- Troubleshooting cooling fans
- Troubleshooting system memory
- Troubleshooting an internal USB key
- Troubleshooting an SD card
- 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 R220 Owner's Manual
Installing the power supply unit
- Open the system.
- Orient the power supply so that the connector fits through the back-panel opening.
- Align the screw hole on the power supply with the hole on the chassis.
- Tighten the screw to secure the power supply to the chassis.
- Connect all the power cables to the system board, hard drives, and optical drive.
- Close the system.
- Connect the power cable to the power supply and plug the cable into a power outlet.
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