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Dell Precision 7920 - User Manual

Dell Precision 7920
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Dell Precision 7920 Rack
Owner's Manual
Regulatory Model: E38S
Regulatory Type: E38S001
November 2020
Rev. A02

Table of Contents

Questions and Answers

  • J
    Joshua AdamsAug 13, 2025
    What to do if my Dell Precision 7920 Desktop RAID volume is degraded?
    • L
      lfordAug 14, 2025
      If the RAID volume is degraded, use the F12 menu to enter the Device Configuration tab and attempt to rebuild the RAID volume.
  • S
    Sarah JonesAug 17, 2025
    What to do if my Dell Precision 7920 Desktop has invalid memory installed?
    • S
      Shawn DavisAug 17, 2025
      If memory modules have been detected but appear to be incompatible or in an invalid configuration because memory subsystem configuration activity is in progress, try removing the memory modules one by one to determine which one has failed.
  • C
    Carl AustinAug 20, 2025
    What to do if my Dell Precision 7920 Desktop has Memory/RAM failure?
    • J
      Julia OsborneAug 20, 2025
      If you suspect a memory or RAM failure, try removing the memory modules one by one to determine which one has failed. You can also swap in a known good memory module to confirm the issue.
  • A
    amanda54Aug 25, 2025
    How to fix BIOS ROM failure on Dell Precision 7920 Desktop motherboard?
    • J
      James SimonAug 25, 2025
      If the system is in Recovery Mode due to a BIOS ROM failure, flash the latest BIOS version.
  • S
    Sean MurphyAug 28, 2025
    How to fix BIOS Recovery 1 on Dell Desktop?
    • L
      Latasha PachecoAug 29, 2025
      If the system is in Recovery Mode, flash the latest BIOS version.
  • T
    thomas27Sep 1, 2025
    How to fix BIOS Recovery 2 on Dell Desktop?
    • G
      George BassSep 1, 2025
      If the system is in Recovery Mode, flash the latest BIOS version.
  • B
    Benjamin GrahamSep 4, 2025
    What to do if my Dell Precision 7920 has a bad processor?
    • B
      Bethany ChapmanSep 4, 2025
      If a CPU configuration activity is in progress or a CPU failure was detected, ensure CPU 0 is installed and that CPU0 and CPU1 are an identical matching pair. If possible, try swapping in known good CPUs.
  • R
    rodgersaustinSep 8, 2025
    What to do if my Dell Desktop has no memory?
    • M
      Melissa OconnorSep 8, 2025
      If you are experiencing a no memory issue, remove the memory modules one by one to determine which one has failed. You can also swap in a known good memory module to confirm.

Summary

Working on your computer

Safety instructions

General guidelines for safe operation and maintenance.

Before working inside your computer

Steps to take before performing internal system maintenance.

After working inside your computer

Steps to take after completing internal system maintenance.

Chassis View

Front chassis view

Identifies components visible on the front of the system chassis.

Back chassis view

Identifies components visible on the back of the system chassis.

LCD panel

Details the function and features of the system's LCD panel.

Product Overview

System information label

Explains the information provided on the system's identification label.

Disassembly and reassembly

Recommended tools

Lists necessary tools for system disassembly and reassembly.

Need to know

Provides essential information before servicing system components.

Diagnostics and indicators

Explains system diagnostic features and status indicators.

Jumpers and connectors

Details system board jumpers and connectors for component installation.

Front Bezel

Procedure for removing and installing the front bezel.

Technology and components

iDRAC9

Overview of the Integrated Dell Remote Access Controller.

Dell Lifecycle Controller

Details the embedded system management and deployment capabilities.

Processors

Information on supported Intel Xeon Scalable processors.

System memory

Specifications and guidelines for system memory modules.

BIOS and UEFI

System Setup

Configuration options for BIOS, iDRAC, and device settings.

Viewing System Setup

Steps to access and view the system setup screen.

Troubleshooting your system

System diagnostics

Procedures for running system diagnostics to identify issues.

Dell Embedded System Diagnostics

Details the ePSA diagnostics for hardware testing.

Getting help

Contacting Dell

Information on how to contact Dell support for assistance.

Dell Precision 7920 Specifications

General IconGeneral
Memory Slots24 DIMM slots
ChipsetIntel C621
Processor OptionsIntel Xeon Scalable Processors
MemoryUp to 3TB DDR4 ECC
StorageSATA/SAS HDDs/SSDs
GraphicsNVIDIA Quadro or AMD Radeon Pro
Operating SystemWindows 10 Pro, Ubuntu Linux, Red Hat Enterprise Linux
Power Supply950W PSU, 90% efficient (80 Plus Gold Certified), Energy Star compliant
NetworkIntegrated Gigabit Ethernet, optional 10GbE
Front PortsUSB 3.1
Rear PortsUSB 3.1, USB 2.0, audio

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