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Reset cmos password problem for Dell OptiPlex 780 MT PC Desktop

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6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 561 Answers

SOURCE: i don't have passwored

If you have forgotten your BIOS or Hard Drive Password for this model, there is a master code that you can obtain from Dell Support. Simply call, Email, or use Online Chat from http://support.dell.com and give them your Service Tag, and they can help you out from there. If it is a Windows profile password you have forgotton, try accessing the Administrator account from Safe Mode (Press F8 at startup), and remove the password for the user account from Control Panel, User Accounts.

Posted on Jan 08, 2010

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CSZFS

  • 1 Answer

SOURCE: I lost all password for

Lots of sites say to move the PSWD jumper (on the motherboard) from pins 1&2 to pins 3&4, or something like that. However on my Optiplex 360 I found that the PSWD jumper had only 2 pins. By trial and error I found that removing the jumper from these two pins while the system was off allowed me to boot the system with BIOS password disabled. I was then able to change BIOS settings (and install Linux - yeah!!).

Posted on Jan 03, 2011

Austin

  • 63 Answers

SOURCE: DC driver for Dell OptiPlex 780 Desktop Computer

Dell has all of their computer's drivers online, in their Support section. You will need to input the Service Tag of the computer to find the ones for you.

Posted on Jun 21, 2012

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How can you reset the cmos password


Dell Optiplex 780, user forgot BIOS master password (which is necessary to change the boot order to run BartPE from CD and do an image backup).

There is a jumper on the mainboard called PSWD1, which is set (shorted). Remove power cable from PC (CMOS battery can stay in place), open the lid. Remove jumper from PSWD1. Reconnect power, start the PC, hit F2 to enter BIOS. All passwords should be reset.

Leave BIOS, power off the PC, remove power cable. Reattach jumper to PSWD1, close lid, reattach power cable. Start PC. Enjoy.

Nov 11, 2010 | Dell OptiPlex 780 MT PC Desktop

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