Dell OptiPlex 5090 Small Form Factor - User Manual

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OptiPlex 5090 Small Form Factor

Service Manual

Regulatory Model: D15S

Regulatory Type: D15S004

April 2021

Rev. A00

Main Page

Questions and Answers

S
Steven LewisSep 14, 2025
How to fix keyboard controller failure on Dell OptiPlex 5090 Small Form Factor Desktop?
- J
  jmillerSep 14, 2025
  If your Dell Desktop displays 'KEYBOARD CONTROLLER FAILURE', and you use an external keyboard, check the cable connection. Restart the computer, and avoid touching the keyboard or the mouse during the boot routine.
S
sbakerSep 15, 2025
What to do if error reading pcmcia card on Dell OptiPlex 5090 Small Form Factor?
- V
  Veronica ChavezSep 15, 2025
  If you encounter 'ERROR READING PCMCIA CARD' on your Dell Desktop, the computer is having trouble identifying the ExpressCard. Try reinserting the card or using a different card.
Y
youngsarahSep 15, 2025
How to fix disk C failed initialization on Dell Desktop?
- C
  christinemahoneySep 15, 2025
  If your Dell Desktop displays 'DISK C: FAILED INITIALIZATION', run the hard drive tests in Dell Diagnostics.
J
Joshua JohnsonSep 15, 2025
Why does Dell OptiPlex 5090 Small Form Factor Desktop say insert bootable media?
- N
  Norma HughesSep 15, 2025
  If your Dell Desktop displays 'INSERT BOOTABLE MEDIA', it means the operating system is trying to boot from non-bootable media. Insert bootable media.
M
millerstephenSep 15, 2025
What to do if extended memory size has changed on Dell OptiPlex 5090 Small Form Factor?
- L
  lturnerSep 15, 2025
  If your Dell Desktop displays 'EXTENDED MEMORY SIZE HAS CHANGED', restart the computer. If the error appears again, further assistance may be needed.
G
gregg18Sep 15, 2025
What to do if no memory/RAM detected on Dell OptiPlex 5090 Small Form Factor Desktop?
- S
  shelby94Sep 15, 2025
  If your Dell Desktop shows 'No memory/RAM detected', confirm that the memory module is installed properly. If the problem persists, replace the memory module.
A
Andrew BaileySep 15, 2025
What to do if invalid memory installed on Dell OptiPlex 5090 Small Form Factor?
- K
  Kyle BradshawSep 16, 2025
  If your Dell Desktop indicates 'Invalid memory installed', reset the memory module. If the problem persists, replace the memory module.
T
teresa27Sep 16, 2025
How to fix PCI or video card/chip failure on Dell Desktop?
- J
  Jared LamSep 16, 2025
  If your Dell Desktop shows 'PCI or Video card/chip failure', replace the system board.
R
Robert GibsonSep 16, 2025
What to do if BIOS recovery image is not found on Dell OptiPlex 5090 Small Form Factor?
- F
  frederickmichaelSep 16, 2025
  If your Dell Desktop shows 'BIOS Recovery image not found', flash the latest BIOS version. If the problem persists, replace the system board.
J
Jacob FlemingSep 16, 2025
How to fix BIOS recovery image found but invalid on Dell OptiPlex 5090 Small Form Factor?
- C
  Christopher MckinneySep 16, 2025
  If your Dell Desktop shows 'BIOS Recovery image found but invalid', flash the latest BIOS version. If the problem persists, replace the system board.