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

Error Code Message Information
Details An error was reported during a SD card read or write.
Action Reseat the flash media. If the problem persists, see Getting Help.
RFM1014
Message Removable Flash Media <
name
> is write protected.
LCD Message Removable Flash Media <
name
> is write protected. Check SD Card.
Details The card is write-protected by the physical latch on the SD card. A
write-protected card cannot be used.
Action If unintended, remove the media and disable write protection.
RFM1201
Message Internal Dual SD Module redundancy is lost.
LCD Message Internal Dual SD Module redundancy is lost. Check SD Card.
Details Either one or both the SD cards are not functioning properly.
Action See Getting Help.
RFM2001
Message Internal Dual SD Module <
name
> is absent.
LCD Message Internal Dual SD Module <
name
> is absent. Check SD Card.
Details The SD card module is not detected or not installed.
Action If unintended, reinstall the SD module.
RFM2002
Message Internal Dual SD Module <
name
> is offline.
Details The SD card module is installed but may be improperly installed or
configured incorrectly.
Action Reinstall the SD module.
RFM2004
Message Failure detected on Internal Dual SD Module <
name
>.
LCD Message Internal Dual SD Module <
name
> failed. Check SD Card.
Details The SD card module is installed but improperly configured or failed to
initialize.
Action Reinstall the SD module and remove and reinstall SD cards.
RFM2006
Message Internal Dual SD Module <
name
> is write protected.
Details The module is write-protected. Changes may not be written to the
media.
Action If unintended, remove the media and disable write protection.
152