The COMPAQ Presario NX9000 series Security Chip w/Password Recovery Service allows for resetting of COMPAQ Presario NX9000 series BIOS passwords. The package includes instructions. This package includes the replacement chip and the password recovery service to recover the password from the existing chip that may be necessary to unlock the hard disk. Old chips must be returned to Password Crackers, Inc. for password recovery service. This product and service is not manufactured or authorized by COMPAQ.