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

Item Indicator, Button, or
Connector
Icon Description
4 Serial connector Allows you to connect a serial device to the system.
5 USB connectors (2) Allows you to connect USB devices to the system. The
ports are USB 2.0-compliant.
6 PCIe expansion card slots (8
or 10 depending on the I/O
risers installed)
Allows you to connect PCI Express expansion cards.
7 Ethernet connectors (4) Four integrated 10/100/1000 Mbps NIC connectors
or
Four integrated connectors that include:
• Two 10/100/1000 Mbps NIC connectors
• Two 100 Mbps/1 Gbps/10 Gbps SFP+/10 GbE T
connectors
8 iDRAC Enterprise port Dedicated management port.
NOTE: The port is available for use only if the iDRAC7
Enterprise license is installed on your system.
9 Video connector Allows you to connect a VGA display to the system.
10 Power supply (PSU 1 and 2)
AC 750 W, 1100 W, or 1600 W (when
available)
or
DC 1100 W
NOTE: You can install only one 1600 W power supply
on each side of the system.
NIC Indicator Codes
Figure 6. NIC Indicator
1.
link indicator 2. activity indicator
15