Yamaha CD-R/RW Drive CRW6416SX Owner's Manual page 26

Setting Up The CRW6416SX Drive
4 Power up your CRW6416SX drive first, then your computer.
Always power up the devices in your SCSI chain before powering up
your computer. This will ensure that they are recognized by the
computer's operating system.
Do not disconnect any devices in your SCSI chain while the computer is on.
Power ON
19