User Guide
Table Of Contents
- Dell PowerEdge R720 and R720xd 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
- Cooling Shroud
- System memory
- Hard Drives
- Removing A 2.5 Inch Hard-Drive Blank
- Installing A 2.5 Inch Hard-Drive Blank
- Removing A 2.5 Inch Hard-Drive Blank (Back)
- Installing A 2.5 Inch Hard-Drive Blank (Back)
- Removing A 3.5 Inch Hard-Drive Blank
- Installing A 3.5 Inch Hard-Drive Blank
- Removing A Hot-Swap Hard Drive
- Installing A Hot-Swap Hard Drive
- Removing A Hard Drive From A Hard-Drive Carrier
- Installing A Hard Drive Into A Hard-Drive Carrier
- Optical Drive (Optional)
- Cooling Fans
- Internal USB Memory Key (Optional)
- PCIe Card Holder
- Top Cover Lock Latch
- Cable Retention Bracket
- Expansion Cards And Expansion-Card Risers
- Expansion Card Installation Guidelines
- Removing An Expansion Card From The Expansion-Card Riser 2 Or 3
- Installing An Expansion Card Into The Expansion-Card Riser 2 Or 3
- Removing An Expansion Card From The Expansion-Card Riser 1
- Installing An Expansion Card Into The Expansion-Card Riser 1
- Removing Expansion-Card Risers
- Installing Expansion-Card Risers
- GPU Card Installation Guidelines
- Installing A GPU Card
- Removing A GPU Card
- SD vFlash Card
- Internal Dual SD Module
- Internal SD Card
- Integrated Storage Controller Card
- Network Daughter Card
- Processors
- Power Supplies
- System Battery
- Hard-Drive Backplane
- 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 NIC
- 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 Tape Backup Unit
- 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.
158