- 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
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Dell PowerEdge T20 Owner's Manual
Back-Panel Features And Indicators
Figure 1. Back-Panel Features
and Indicators
| Item | Indicator, Button, or Connector | Icon | Description |
|---|---|---|---|
| 1 | AC power supply status indicator | Indicates power supply activity. | |
| 2 | Self-diagnostic button | Indicates the health status of the non-redundant power supply. | |
| 3 | Power supply | One 290 W non-redundant AC power supply. | |
| 4 | PS/2 mouse connector |  | Allows you to connect a PS/2 mouse to the system. |
| 5 | PS/2 keyboard connector |  | Allows you to connect a PS/2 keyboard to the system. |
| 6 | Display ports (2) |  | Allow you to connect other external display devices to the system. |
| 7 | USB connectors (2) |  | Allow you to connect USB devices to the system. The ports are USB 3.0 compliant. |
| 8 | Video connector |  | Allows you to connect a VGA display to the system. |
| 9 | Line-out connector |  | Allows you to connect other output devices to the system. |
| 10 | Line-in/microphone connector |   | Allows you to connect other external audio devices to the system. |
| 11 | Expansion card slots (4) | Allow you to connect up to three full-height PCIe expansion cards and one full-height PCI expansion card. | |
| 12 | Security-cable slot |  | Allows you to connect a cable lock to the system. |
| 13 | Padlock ring | | Locks the cover release latch. |
| 14 | Ethernet connector |  | One integrated 10/100/1000 Mbps NIC connector. |
| 15 | USB connectors (4) |  | Allow you to connect USB devices to the system. The ports are USB 2.0 compliant. |
| 16 | Serial connector |  | Allows you to connect a serial device to the system. |
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