Question about Dell Inspiron 6400 Notebook
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Posted on Jan 02, 2017
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Feb 29, 2012 | Computers & Internet
The most common way that we know on how to reset or clear the BIOS password is to physically remove the power from the computer by disconnecting the power plug and then removing a battery for 30 minutes from the motherboard.
Another way is to reset the clear CMOS jumper on the motherboard itself.
Both of the 2 methods mentioned works because most motherboards use a battery to sustain the BIOS/CMOS settings for the motherboards PROM chip.
So by cutting off cmos the battery power, the BIOS/CMOS settings will be erased.
Hope this helps
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