Frequently Asked Questions       Show Part Numbers       Hide Part Numbers MLXPH0, MLXPH1, MLXPMC0, MLXPMC1, MLXPP0, MLXPP1, MLXPT0, MLXPT1 Q: If there are two optical drives, which one is used when starting the computer to recovery media? A: You can use either optical drive to restore the computer, but typically the top drive is used. Both drive trays will eject when prompted for media, but the system recovery program reads from either drive.