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Richard
Richard, Computer Specialist
Category: Computer
Satisfied Customers: 33116
Experience:  Over 20 years of consulting to the IT industry
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I need to reset the bios password on my dell optic lex 755

Customer Question

I need to reset the bios password ***** my dell optic lex 755 model no DDCTR -- I found the labels for the jumper pins on the system board but it looks like they lead to underneath where the cup is located ... Do I need to remove the cup to manipulate the jumper pins?
Submitted: 1 year ago.
Category: Computer
Expert:  Richard replied 1 year ago.

Hi there and welcome

You need the PSWD and RTCRST pins to do this, which should be located like in this picture

Click me to view

The procedure is then

  1. Turn off the computer and disconnect the power cable from the electrical outlet.
  2. Remove the computer cover.
  3. Locate the 2-pin password ***** (PSWD) on the system board.
  4. Remove the 2-pin jumper plug.
  5. Locate the 2-pin CMOS jumper (RTCRST) on the system board.
  6. Move the 2-pin jumper plug from the password ***** to pins into the CMOS jumper.
  7. Plug in AC power to the system and wait ten seconds for the CMOS to clear.
  8. Move the 2-pin jumper plug back to the password *****
  9. Replace the computer cover.
  10. Connect your computer and devices to electrical outlets, and turn them on.

And it should then be reset

Let me know the results please