- Notes, cautions, and warnings
- Working on your computer
- Chassis View
- Product Overview
- Disassembly and reassembly
- Product Positioning
- Recommended tools
- Need to know
- Chassis LEDs
- Jumpers and connectors
- Disassembly and reassembly
- Front Bezel
- System cover
- Optical drive
- Air shroud
- Cooling fan assembly
- Cooling fans
- Intrusion switch
- Hard drive
- Removing hard drive blank
- Installing hard drive blank
- Removing hard drive
- Installing hard drive
- Removing 3.5 inch hard drive from hard drive carrier
- Installing 3.5 inch hard drive into hard drive carrier
- Removing hard drive
- Installing 2.5 inch hard drive
- Removing 2.5 inch hard drive from 3.5 inch hard drive carrier
- Installing 2.5 inch hard drive into 3.5 inch hard drive carrier
- Memory modules
- Processors and heat sinks
- Expansion card
- Removing expansion card from expansion card riser
- Installing expansion card into expansion card riser
- Opening and closing the full length PCIe card holder latch
- Removing expansion card riser 1
- Installing expansion card riser 1
- Removing expansion card riser 2
- Installing expansion card riser 2
- Removing expansion card riser 3
- Installing expansion card riser 3
- Removing the Dell ultraspeed drive duo card from the expansion card shroud
- Installing the Dell ultraspeed drive duo card into the expansion card shroud
- vFlash card – optional
- Network daughter card
- Hard drive backplane
- Front USB module
- Internal USB memory key (optional)
- Power supply unit
- System board
- Trusted Platform Module
- Control panel
- GPU Host Card Installation
- Updating BIOS
- Restoring the Service Tag using Easy Restore
- Installation
- Accessing system information by using QRL
- Technology and components
- BIOS and UEFI
- Options to manage the pre-operating system applications
- System Setup
- Viewing System Setup
- System Setup Main Menu
- System BIOS screen
- System information screen details
- Memory settings screen details
- Processor settings screen details
- SATA settings screen details
- Boot settings screen details
- Network settings screen details
- Integrated devices screen details
- Serial Communication screen details
- System profile settings screen details
- System security settings screen details
- Miscellaneous settings screen details
- Updating the BIOS
- Troubleshooting your system
- Getting help and contacting Dell
Dell Precision 7920 Rack Owner's Manual
Expansion bus specifications
The Precision 7920 Rack system supports up to eight PCI express (PCIe) generation 3 expansion cards, that can be installed on the system board using expansion card risers. The following table provides detailed information about the expansion card riser specifications:
| Expansion card riser | PCIe slots on the riser | Height | Length | Link | CPU |
|---|---|---|---|---|---|
| Riser 1C | Slot 1 | Full Height | Full Length | x16 | CPU1 |
| Slot 2 | Full Height | Full Length | x8 | CPU1 | |
| Slot 3 | Full Height | Half Length | x8 | CPU1 | |
| Riser 2A | Slot 4 | Full Height | Full Length | x16 | CPU2 |
| Slot 5 | Full Height | Full Length | x8 | CPU2 | |
| Slot 6 | Low Profile | Half Length | x8 | CPU1 | |
| Riser 3A | Slot 7 | Full Height | Full Length | x8 | CPU2 |
| Slot 8 | Full Height | Full Length | x16 | CPU2 |
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