You need to locate the method of resetting the BIOS back to defaults
and then the password would be "cleared."
If you can not find the reset method, then by unplugging the PC and
pop out the cion cell battery should do the same.
PLEASE NOTE: Resetting the BIOS will clear out the BIOS completely so
you will have to do the the BIOS configurations and setting the DATE/
TIME again.