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
PSU0034
Message An under voltage fault detected on power supply <
number
>.
LCD Message An under voltage fault detected on PSU <
number
>. Check power
source.
Details This failure may be the result of an electrical issue with cables or
subsystem components in the system.
Action
1. Remove and reinstall the power supply.
2. Check cables and subsystem components in the system for
damage.
3. If the issue persists, see
Getting Help.
PSU0035
Message An over voltage fault detected on power supply <
number
>.
LCD Message Over voltage fault on PSU <
number
>. Check PSU.
Action Check input power or reinstall the power supply. If the issue persists,
see
Getting Help.
PSU0036
Message An over current fault detected on power supply <
number
>.
LCD Message An over current fault detected on PSU <
number
>. Check PSU.
Details This failure may be the result of an electrical issue with cables or
subsystem components in the system.
Action
1. Remove and reinstall the power supply.
2. Check cables and subsystem components in the system for
damage.
3. If the issue persists, see
Getting Help.
PSU0037
Message Fan failure detected on power supply <
number
>.
LCD Message Fan failure detected on PSU <
number
>. Check PSU.
Action Check for fan blockage. If the problem persists, see
Getting Help.
PSU0076
Message A power supply wattage mismatch is detected; power supply
<
number
> is rated for <
value
> watts.
LCD Message PSU wattage mismatch; PSU <
number
> = <
value
>watts
Details Power supplies should be of the same input type and power rating.
Action Install matched power supplies and review this manual for proper
configuration.
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