User Guide

User Guide
Using the Integrated SCSI Controllers: Dell Precision WorkStation 410 Desktop Systems

Using the Integrated SCSI Controllers: Dell™ Precision™ WorkStation 410 Desktop Systems

Overview

This chapter provides instructions for installing drivers for the following small computer system interface (SCSI) controllers:

  • Integrated Adaptec 7890 Ultra2/Wide low voltage differential (LVD) SCSI controller. This primary controller provides transfer rates of up to 80 megabytes per second (MB/sec) with LVD hard-disk drives and up to 40 MB/sec with non-LVD hard-disk drives. The chassis supports up to four hard-disk drives of either type or a mix of both types.
  • Adaptec 7880 Ultra/Wide external and narrow internal SCSI controller. This secondary controller provides transfer rates of up to 40 MB/sec and is used for removable media devices such as CD-ROM drives and tape drives. This controller also supports up to 15 external SCSI devices through a 68-pin connector on the computer's back panel. The chassis supports up to three SCSI removable-media devices.

NOTES: To achieve 80-MB/sec data transfer rates on the primary SCSI channel, you must use LVD hard-disk drives and either an LVD terminator or a multimode terminator.

If you install a mix of LVD and non-LVD hard-disk drives, the system can only achieve 40-MB/sec data transfer rates for all SCSI drives. In addition, the LVD drives in this mix must be capable of reverting to 40 MB/sec. In this configuration, you can terminate the SCSI subsystem with either a single-ended or multimode terminator.

Dell ships multimode terminators only, regardless of system configuration.

The total length of the SCSI cable for each of the primary and secondary SCSI channels is 2.5 meters (m).

The total number of SCSI devices connected to the secondary 7880 controller, both internally and externally, cannot exceed 15.

SCSI Device Considerations

The 5.25-inch externally accessible drive bays at the front of the computer are normally used for non-hard-disk drive devices such as CD-ROM drives and/or tape drives. These can be enhanced integrated drive electronics (EIDE) or SCSI devices.

CAUTION: Your hard-disk drive subsystem must consist of either SCSI hard-disk drives or EIDE hard-disk drives. Dell does not support a mix of both types of hard-disk drives.

The two internal drive bays (located in the drive cage next to the externally accessible drive bays; see Figure 7-1) are used for either SCSI hard-disk drives or EIDE hard-disk drives. Internal hard-disk drives are mounted vertically in a removable drive bracket that can contain up to two 1.6-inch hard-disk drives.

NOTE: Dell supports only the drives it furnishes.

Figure 7-1. Internal Drive Bays

For detailed information about installing drives in either the externally accessible drive bays or the internal drive bays, see "Installing Drives."

Installing SCSI Drivers

Your system's SCSI drivers were installed at Dell and are operative when you receive the system - no further installation or configuration is needed. The following subsections provide instructions on reinstalling these drivers. Repeat the procedure for each SCSI driver you want to install.

Installing SCSI Drivers for Windows 95

The procedure for reinstalling SCSI drivers for Windows 95 differs for the two integrated SCSI controllers.

SCSI Driver for the Primary SCSI Controller

To reinstall the SCSI driver for the primary SCSI controller under Windows 95, follow these steps:

  1. Use the Program Diskette Maker (located in the Dell Accessories folder) to make a diskette copy of the SCSI drivers installed on your hard-disk drive.
  2. Start the Windows 95 operating system.
  3. Click the Start button, point to Settings, and click Control Panel.
  4. Double-click the System icon.
  5. Click the Device Manager tab.
  6. Click Other Devices.
  7. Double-click PCI SCSI Bus Controller.
  8. Click the Driver tab.
  9. Click Update Driver.
  10. Insert the SCSI drivers diskette into drive A.
  11. At the Update Device Driver Wizard window, click Yes and then click Next.

    The system finds the following driver:

    Adaptec AIC-789x based PCI Ultra2 SCSI Controller

  12. Click Finish.

    You are prompted to insert the disk labeled "7800 Family Manager Set Installation Disk."

  13. Verify that the SCSI drivers diskette is still in drive A, and click OK.
  14. At the Copying Files window, type a:\ and click OK.
  15. At the System Settings Change window, click Yes to restart the system.

SCSI Driver for the Secondary SCSI Controller

To reinstall the SCSI driver for the secondary SCSI controller under Windows 95, follow these steps:

  1. Use the Program Diskette Maker (located in the Dell Accessories folder) to make a diskette copy of the SCSI drivers installed on your hard-disk drive.
  2. Start the Windows 95 operating system.
  3. Click the Start button, point to Settings, and click Control Panel.
  4. Double-click the System icon.
  5. Click the Device Manager tab.
  6. Double-click Adaptec AIC-7880PCI SCSI Controller.
  7. Click the Driver tab.
  8. Click Update Driver.
  9. Insert the SCSI drivers diskette into drive A.
  10. At the Update Device Driver Wizard window, click Yes and then click Next.

    The system finds the following driver:

    Adaptec AIC-7880 PCI SCSI Controller

  11. Click Finish.

    You are prompted to insert the disk labeled "7800 Family Manager Set Installation Disk."

  12. Verify that the SCSI drivers diskette is still in drive A, and click OK.
    13.
  13. At the Copying Files window, type a:\ and click OK.
  14. At the System Settings Change window, click Yes to restart the system.

Installing SCSI Drivers After Installing Windows NT 4.0

To reinstall the SCSI drivers for Windows NT 4.0, follow these steps:

  1. Use the Program Diskette Maker (located in the Dell Accessories folder) to make a diskette copy of the SCSI drivers installed on your hard-disk drive.
  2. Start the Windows NT operating system.
  3. Click the Start button, point to Settings, and click Control Panel.
  4. Double-click SCSI Adapters.
  5. Click the Drivers tab and click the Add button.
  6. In the Install Driver window, click the Have Disk button.
  7. Insert the Windows NT 4.0 SCSI drivers diskette into drive A.
    8.
  8. In the text field labeled "Copy manufacturer's files from," type a: \ and click Continue.
  9. After the driver has been installed, remove the diskette from drive A and restart Windows NT 4.0.

Installing SCSI Drivers During Windows NT 4.0 Installation

Follow these steps to install SCSI drivers for Windows NT 4.0:

  1. Insert the bootable Windows NT CD, and turn on or reboot the system.
  2. Press <F6> when the following message appears:

    Setup is inspecting your computer's hardware configuration...

    The setup program copies files to your system and pauses at the Windows NT Setup screen to allow you to specify additional devices.

  3. Press <s> to specify additional SCSI devices.

    Windows NT displays a list of supported host adapters.

  4. Select Other (the default) and press <Enter>.

    The following message appears:

    Please insert the disk labeled Manufacturer-supplied hardware support disk into Drive A:

  5. Insert the diskette containing the Adaptec 7890 and 7880 device drivers and press <Enter>.

    You created this diskette using the Dell DiskMaker program when you made program diskette sets of your Dell-installed software.

  6. Follow the instructions on the screen to complete the Windows NT installation.
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