Owner's Manual
Table Of Contents
- Dell PowerEdge R920 System Owner's Manual
- About Your System
- Using The System Setup and Boot Manager
- Installing System Components
- Recommended Tools
- Front Bezel (Optional)
- Opening And Closing The System
- Inside The System
- Cable Management Tray
- System Memory
- General Memory Module Installation Guidelines
- Mode-Specific Guidelines
- Advanced ECC (Lockstep)
- Memory Optimized (Independent Channel) Mode
- Memory Sparing
- Memory Mirroring
- Fault Resilient Memory
- Sample Memory Configurations
- Removing A Memory-Riser Blank
- Installing A Memory-Riser Blank
- Removing A Memory Riser
- Installing A Memory Riser
- Removing Memory Modules From The Memory Riser
- Installing Memory Modules
- Memory Riser And Fan Cage
- Hard Drives
- Optical Drive (Optional)
- Cooling Fans
- Internal USB Memory Key (Optional)
- Expansion Cards And Expansion-Card Risers
- Expansion Card Installation Guidelines
- Removing The Left Expansion Card Riser Blank
- Installing The Left Expansion Card Riser Blank
- Removing The Right Expansion Card Riser Blank
- Removing An Expansion Card From Expansion-Card Risers 2 and 3
- Installing An Expansion Card Into The Expansion-Card Riser 2 and 3
- NDC Riser (I/O Riser 1)
- Network Daughter Card
- SD vFlash Card
- Internal Dual SD Module
- Internal SD Card
- Integrated Storage Controller Card
- RAID Battery
- Processors
- Power Supplies
- Hot Spare Feature
- Removing An AC Power Supply
- Installing An AC Power Supply
- Wiring Instructions For A DC Power Supply
- Assembling And Connecting The Safety Ground Wire
- Assembling The DC Input Power Wires
- Removing A DC Power Supply
- Installing A DC Power Supply
- Removing The Power Supply Blank
- Installing The Power Supply Blank
- Power Distribution Board
- System Battery
- Hard-Drive Backplane
- SAS Expander Daughter Card
- Control Panel Board
- System Board
- Troubleshooting Your System
- Safety First—For You And 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 Wet System
- Troubleshooting A Damaged System
- Troubleshooting The System Battery
- Troubleshooting Power Supplies
- 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 A Storage Controller
- Troubleshooting Expansion Cards
- Troubleshooting Processors
- Using System Diagnostics
- Jumpers And Connectors
- Technical Specifications
- System Messages
- Getting Help

• The LCD backlight remains off if LCD messaging is turned off through the iDRAC utility, the LCD panel, or other tools.
Figure 2. LCD Panel Features
Item Button Description
1 Left Moves the cursor back in one-step
increments.
2 Select Selects the menu item highlighted by
the cursor.
3 Right Moves the cursor forward in one-step
increments.
During message scrolling:
• Press once to increase scrolling
speed
• Press again to stop
• Press again to return to default
scrolling speed
• Press again to repeat the cycle
Home Screen
The Home screen displays user-configurable information about the system. This screen is displayed during normal
system operation when there are no status messages or errors. When the system is in standby mode, the LCD backlight
turns off after five minutes of inactivity if there are no error messages. Press one of the three navigation buttons (Select,
Left, or Right) to view the Home screen.
To navigate to the Home screen from another menu, continue to select the up arrow until the Home icon is
displayed, and then select the Home icon.
From the Home screen, press the Select button to enter the main menu.
Setup Menu
NOTE: When you select an option in the Setup menu, you must confirm the option before proceeding to the next
action.
Option
Description
iDRAC Select DHCP or Static IP to configure the network mode. If Static IP is selected, the available
fields are IP, Subnet (Sub), and Gateway (Gtw). Select Setup DNS to enable DNS and to view
domain addresses. Two separate DNS entries are available.
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