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

The following table provides guidelines for installing expansion cards to ensure proper cooling and mechanical fit. The
expansion cards with the highest priority should be installed first using the slot priority indicated. All other expansion
cards should be installed in card priority and slot priority order.
Table 4. Expansion Card Installation Order
Card
Priority
Card Type Form Factor Slot Priority (Two
Processors)
Slot Priority (Four
Processors)
Max
Allowed
1 Internal Storage
(Integrated Slot)
Full Height 4 4,7 2
2 External Storage Full Height 1*, 3, 4, 5, (1/1)*,
(2/2)*
(1/9)^, (2/10)^, 1*, 3, 4, 5, 6, 7,
8, 9^, (1/1)*, (2/2)*
2
3 40 Gb Ethernet
Controllers
Full Height 1*, 3, 4, 5, (1/1)*,
(2/2)*
(1/9)^, (2/10)^, 1*, 3, 4, 5, 6, 7,
8, 9^, (1/1)*, (2/2)*
2
4 Fibre Channel 16 Gb,
HBA, Single/Dual Port
(Emulex)
Full Height 1*, 3, 4, 5, (1/1)*,
(2/2)*
(1/9)^, (2/10)^, 1*, 3, 4, 5, 6, 7,
8, 9^, (1/1)*, (2/2)*
2
Fibre Channel 16 Gb,
HBA, Single/Dual Port
(QLogic)
Full Height (1/1)*, (2/2)*, 1*, 3, 4,
5
(1/1)*, (2/2)*, (1/9)^, (2/10)^,
1*, 3, 4, 5, 6, 7, 8, 9^
2
5 Converged Network
Adapters
Full Height 1*, 3, 4, 5, (1/1)*,
(2/2)*
(1/9)^, (2/10)^, 1*, 3, 4, 5, 6, 7,
8, 9^, (1/1)*, (2/2)*
4
6 10 Gb Ethernet
Controllers
Full Height 1*, 3, 4, 5, (1/1)*,
(2/2)*
(1/9)^, (2/10)^, 1*, 3, 4, 5, 6, 7,
8, 9^, (1/1)*, (2/2)*
4
7 Fibre Channel 8 Gb
Dual Port (QLogic and
Emulex)
Full Height (1/1)*, (2/2)*, 1*, 3, 4,
5
(1/1)*, (2/2)*, (1/9)^, (2/10)^,
1*, 3, 4, 5, 6, 7, 8, 9^
4
Fibre Channel 8 Gb
Dual Port (Brocade)
Full Height 1*, 3, 4, 5, (1/1)*,
(2/2)*
(1/9)^, (2/10)^, 1*, 3, 4, 5, 6, 7,
8, 9^, (1/1)*, (2/2)*
4
8 Fibre Channel 8 Gb
Single Port (QLogic
and Emulex)
Full Height (1/1)*, (2/2)*, 1*, 3, 4,
5
(1/1)*, (2/2)*, (1/9)^, (2/10)^,
1*, 3, 4, 5, 6, 7, 8, 9^
4
Fibre Channel 8 Gb
Single Port (Brocade)
Full Height 1*, 3, 4, 5, (1/1)*,
(2/2)*
(1/9)^, (2/10)^, 1*, 3, 4, 5, 6, 7,
8, 9^, (1/1)*, (2/2)*
4
9 1 Gb NICs Full Height (1/1)*, (2/2)*, 1*, 3, 4,
5
(1/1)*, (2/2)*, (1/9)^, (2/10)^,
1*, 3, 4, 5, 6, 7, 8, 9^
6
10 External Non-RAID
Controller
Full Height 1*, 3, 4, 5, (1/1)*,
(2/2)*
(1/9)^, (2/10)^, 1*, 3, 4, 5, 6, 7,
8, 9^, (1/1)*, (2/2)*
2
NOTE
:
(*) indicates that ”Slot 1" is not available if the optional left PCIe expansion riser is installed.
(^) indicates that ”Slot 9" is not available if the optional right PCIe expansion riser is installed.
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