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
Menu Item Description
System BIOS Version Displays the BIOS version installed on the system.
System Service Tag Displays the system Service Tag.
System Manufacturer Displays the name of the system manufacturer.
System Manufacturer
Contact Information
Displays the contact information of the system manufacturer.
Memory settings screen
Menu Item Description
System Memory Size Displays the amount of memory installed in the system.
System Memory Type Displays the type of memory installed in the system.
System Memory
Speed
Displays the system memory speed.
System Memory
Voltage
Displays the system memory voltage.
Video Memory Displays the amount of video memory.
System Memory
Testing
Specifies whether system memory tests are run during system boot. Options are
Enabled and
Disabled. By default, the System Memory Testing option is set to Disabled.
Memory Operating
Mode
Specifies the memory operating mode. The options available are Optimizer Mode, Advanced
ECC Mode, Mirror Mode, Spare Mode, Spare with Advanced ECC Mode, and Dell Fault
Resilient Mode. By default, the Memory Operating Mode option is set to Optimizer Mode.
NOTE:
The Memory Operating Mode can have different defaults and available options
based on the memory configuration of your system.
NOTE
: The Dell Fault Resilient Mode establishes an area of memory that is fault resilient.
This mode can be used by an operating system that supports the feature to load critical
applications or enables the operating system kernel to maximize system availability.
Node Interleaving If this field is
Enabled, memory interleaving is supported if a symmetric memory configuration is
installed. If Disabled, the system supports Non-Uniform Memory architecture (NUMA)
(asymmetric) memory configurations. By default, Node Interleaving option is set to Disabled.
Serial Debug Output By default, it is set to disabled.
Processor Settings Screen
Menu Item Description
Logical Processor Allows you to enable or disable logical processors and display the number of logical
processors. If the
Logical Processor option is set to Enabled, the BIOS displays all the logical
processors. If this option is set to Disabled, the BIOS only displays one logical processor per
core. By default, the Logical Processor option is set to Enabled.
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