HP Vectra XU 6/XXX HP Vectra XU 6/xxx Pc User’s Guide - d4369-90001 - Page 108

4 Troubleshooting Your PC and Using the Setup Program Using the HP Setup Program Configuring the SCSI Interface You can install and use a SCSI host adapter board, and also use the integrated SCSI interface. However, if you want to use the SCSI host adapter board only, you can disable the integrated SCSI interface. To disable the integrated SCSI interface, highlight the Integrated Interface option and select Disabled. HP Vectra PC Setup xxx.xx.xxx.xx F1=Help On/Off Integrated SCSI Interface Integrated Interface Enabled/Disabled SCSI BIOS Not Available/Enabled Ultra SCSI Automatic/Enabled/Disabled The use of Ultra SCSI (20 MB/s transfer rate) imposes restrictions on SCSI bus traffic. By default, the system BIOS will ensure data integrity by automatically disabling Ultra SCSI (to a 10 MB/s transfer rate) whenever an external SCSI device is connected. The Ultra SCSI field can be set to one of the following: Ì Automatic (Default setting) Ultra SCSI is automatically disabled when the BIOS detects an external SCSI device. Inversely, Ultra SCSI is automatically enabled when no external SCSI device is detected. To avoid potential data corruption problems, it is recommended that you keep this default setting. Ì Enabled Ultra SCSI is permanently enabled, regardless of the presence or absence of external SCSI devices. To avoid data corruption, use this setting with caution and only under the following conditions: • One to three SCSI devices - overall cable length ≤ 3 m • Four to seven SCSI devices - overall cable length ≤ 1.5 m. Ì Disabled Ultra SCSI is never enabled. To access advanced SCSI device configuration options, restart the computer and press when the message Press for SCSISelect Utility is displayed. 96 English