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Dell OptiPlex 3020–Small Form Factor Owner's Manual

PDF

Clearing CMOS

  1. Follow the procedures in Before Working Inside Your Computer.
  2. Remove the cover.
  3. Remove the PCI card if installed.
  4. Identify the CMOS jumper on the system board, see the System Board Components.
  5. Place the 2-pin jumper plug on pins 1 and 2 to clear CMOS
  6. Install PCI card if installed.
  7. Install the cover.
  8. Connect the computer to the electrical outlet and power-on the computer to clear the CMOS.
  9. Power-off the computer and disconnect the power cable from the electrical outlet.
  10. Remove the cover.
  11. Replace the jumper on the pins 1 and 2.
  12. Install PCI card if installed.
  13. Install the cover.
  14. Follow the procedures in After Working Inside Your Computer.
  15. Power-on the computer.

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