Are all requirements for LVD being met (such as LVD controller, LVD termination, and an LVD device)?
• Try a different slot for the controller. Not all PCI slots are created equal. • Ensure the terminator is LVD compliant. • Ensure there is not a single-ended device on the LVD bus segment. • Ensure the drive is not “locked” into single-ended mode with a misplaced jumper. • If an Ultra160 device is operating at Ultra2 LVD speeds, check SCSI controller configurations to ensure the maximum data transfer rate is selected.