Need to locate jumpers on dell latitude d420 notebook

SOURCE: how can i unlock dell latitude d420 bios password

Clearing the CMOS will reset the password...
Take the button cell battery out for a few minutes, put it back in, and all settings, including the password, should go back to defaults.
Unfortunately it looks like your BIOS battery is under the keyboard...
Dell has got what looks like decent directions here, for getting at it:
http://support.dell.com/support/edocs/systems/latd420/en/SM_EN/coinbatt.htm#wp1123951

SOURCE: dell latitude d620 bios password removal

To remove a BIOS password will require the assistance of Dell Tech Support. 800-624-9896 You will have to be able to prove you are an authorized user and if out of warranty a Fee may be involved.

SOURCE: jumper location motherboard blade 2, dell latitude x300.

The password is not on the battery it is in the volatile memory.

The battery supplies the power to the volatile memory to make sure it retains its settings.

If you have removed the Cmos battery and when you put it back the machine still has a password then the password is written into the non-volatile memory and cannot be re-set that way.

Get a hold of someone with ERD Commander and they will drop the password off in a couple of minutes

SOURCE: How can i unlock dell latitude d420 bios password

For that try password as "dell" or "DELL"
If it not works then you have to reset all settings of bios to factory defaults.
For that you need to open back side cover of laptop.
Open all screw in back side then remove cover then you find motherbord chipset .
Pull cmos cell from motherbord 15 minutes so all settings goes to factory defaults.
Let me know if you need more assistanse.
Thanks.

sandip panchal

• 535 Answers
• Posted on Nov 14, 2009

SOURCE: dell d420 bios admin password removal

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