...Internal and external drives cannot both be attached to the same SCSI port. SCSI port Y: Check cables
Audible Beeps: None
Possible Cause: External and internal connectors of the specified SCSI ports are connected to drives. The indicated SCSI bus is disabled until this problem is resolved.
Action: The SCSI bus is not properly terminated when internal and external drives are connected concurrently to the same SCSI bus.