Dell e6400 bios reset

Does anyone know how to reset the bios password for dell latitude e6400?
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More about dell e6400 bios reset
  1. Take out the RTC battery (Lithium CR 2032) on the motherboard and leave it out for 10 minutes (10 minutes). Then re-install the RTC battery. Re-start the computer. This will reset the BIOS to factory defaults.

    (For the location and 'how-to' details, download the manuals from "" by entering the service tag number).
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