1. topic needs to be fixed. according to the rules. indicating the model of the motherboard.
viewtopic.php?f=35&t=22062. The password is not stored in the BIOS. you can make it worse with someone else's bios.
On Dell, as a rule, a TPM chip is installed - passwords are stored in it. Reset by simple methods may not work.
will contact the user
evserv . he will help.
viewtopic.php?p=941796#p941796well, read this
viewtopic.php?f=41&t=130001