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Dell OptiPlex 5090 Small Form Factor - User Manual

Dell OptiPlex 5090 Small Form Factor
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OptiPlex 5090 Small Form Factor
Service Manual
Regulatory Model: D15S
Regulatory Type: D15S004
April 2021
Rev. A00

Table of Contents

Questions and Answers

  • L
    Laurie DudleyAug 26, 2025
    Why does my Dell Desktop say time-of-day clock lost power?
    • H
      hansenkristaAug 26, 2025
      If your Dell Desktop displays 'TIME-OF-DAY CLOCK LOST POWER', connect your computer to an electrical outlet to charge the battery. If the problem persists, try to restore the data by entering the System Setup program, then immediately exit the program.
  • E
    Erica StephensSep 2, 2025
    What to do if my Dell OptiPlex 5090 Small Form Factor CPU has failed?
    • R
      Ryan DunlapSep 2, 2025
      Run the Intel CPU diagnostics tools. If the problem persists, replace the system board.
  • M
    morenokatrinaSep 23, 2025
    What to do if a memory module is loose in Dell OptiPlex 5090 Small Form Factor?
    • B
      Bridget CarrSep 23, 2025
      Reinstall the memory module or, if necessary, replace it in your Dell Desktop.
  • K
    Karl LaraSep 12, 2025
    How to fix BIOS Recovery image not found on Dell Laptop?
    • J
      Jose Carroll PhDSep 12, 2025
      Flash the latest BIOS version. If the problem persists, you may need to replace the system board.
  • T
    Tammy OliverSep 6, 2025
    Why does my Dell OptiPlex 5090 Small Form Factor Desktop have 'Memory configuration or incompatible error'?
    • D
      Donna OwensSep 7, 2025
      Memory subsystem configuration activity is in progress. If you can assist with troubleshooting, try removing the memory modules one by one on the motherboard to determine which one failed. Also, combine the configuration to validate the appropriate combination.
  • M
    Martin McculloughSep 4, 2025
    What to do if my Dell Desktop has Intel ME (Management Engine) time-out error?
    • M
      Michelle FarleySep 4, 2025
      Timeout waiting on ME to reply to HECI message. If the problem persists, replace the system board.
  • C
    Connie WilsonSep 8, 2025
    What does 'Bad Command Or File Name' mean on my Dell OptiPlex 5090 Small Form Factor and how to fix it?
    • J
      John ChristianSep 8, 2025
      If your Dell Desktop displays 'Bad Command Or File Name', ensure that you have spelled the command correctly, put spaces in the proper place, and used the correct path name.
  • H
    Holly JacksonSep 12, 2025
    What to do if my Dell Laptop has system board failure?
    • M
      Madeline RobbinsSep 12, 2025
      Try flashing the latest BIOS version. If the issue remains, the system board may need to be replaced.
  • A
    Angela JohnsonAug 27, 2025
    What causes power rail failure on Dell Desktop?
    • S
      Samantha GlassAug 27, 2025
      If your Dell Desktop experiences a power rail failure, it means that EC ran into power sequencing failure. If the problem persists, replace the system board.
  • T
    Timothy MaldonadoAug 27, 2025
    What to do if auxiliary device failure on Dell Desktop?
    • J
      Joseph ParsonsAug 27, 2025
      If your Dell Desktop experiences an auxiliary device failure, the touchpad or external mouse may be faulty. For an external mouse, check the cable connection. Enable the Pointing Device option in the System Setup program.

Dell OptiPlex 5090 Small Form Factor Specifications

General IconGeneral
BrandDell
ModelOptiPlex 5090 Small Form Factor
CategoryDesktop
LanguageEnglish

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