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
Action Review the technical specifications for supported processor types.
CPU0010
Message CPU <
number
> is throttled.
Details The CPU is throttled due to thermal or power conditions.
Action Review system logs for power or thermal exceptions.
CPU0023
Message CPU <
number
> is absent.
LCD Message CPU <
number
> is absent. Check CPU.
Action Verify processor installation. If present, re-seat the processor.
CPU0204
Message CPU <
number
> <
name
> voltage is outside of range.
LCD Message CPU <
number
> <
name
> voltage is outside of range. Re-seat CPU.
Details Voltages outside the allowable range may damage electrical
components or may cause the system to shutdown.
Action
1. Turn off the system and remove input power for one minute.
2. Ensure the processor is seated correctly.
3. Reapply input power and turn on the system.
4. If the issue persists, see Getting Help.
CPU0700
Message CPU <
number
> initialization error detected.
LCD Message CPU <
number
> initialization error detected. Power cycle system.
Details System BIOS was unable to initialize the processor.
Action
1. Turn off the system and remove input power for one minute.
2. Ensure the processor is seated correctly.
3. Reapply input power and turn on the system.
4. If the issue persists, see Getting Help.
CPU0701
Message CPU <
number
> protocol error detected.
LCD Message CPU <
number
> protocol error detected. Power cycle system.
Details System event log and operating system logs may indicate that the
exception is external to the processor.
Action
1. Check system and operating system logs for exceptions. If no
exceptions are found, continue.
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