Bios passwords are junk. They can be reset by a jumper on the board. If they jumper does not exist (unlikely) the battery can be removed and replaced and the password will be gone.

Secondly If you have physical access to the box there is no need to crack anything at all. Tools to read/write any file/os can be loaded onto a live cd of linux.

Biometric scanners are only good if they are plugged in and the OS loads, again using a live cd or command prompt would not load the software for the biometric scanner.