Dell 610 Device Termination, Scsi Cables, General Procedure for Installing Scsi Devices

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Device Termination

SCSI logic requires that termination be enabled for the two devices at opposite ends of the SCSI chain and disabled for all devices in between. However, because both SCSI controllers are self-terminating and because all internal SCSI cables provided by Dell have active termination at the end of the cables, any SCSI devices you install should have termination disabled on the devices.

Furthermore, when attaching external SCSI devices, you should use only external SCSI cables with active termination on the cable at one end. When used with this type of cable, all external SCSI devices also need to have termination disabled on the devices and be connected toward termination.

See the documentation provided with any optional SCSI device you purchase for information on disabling termination on the device.

SCSI Cables

The 68-pin (internal) SCSI cable in your Precision 610 system connects SCSI devices (normally SCSI hard-disk drives) to the 7890 Ultra2/Wide LVD controller.

The connector at the end of the cable attaches to the Ultra2/Wide LVD primary SCSI controller connector labeled "SCSI_ULTRA2" on the system board.

The other connectors on the cable are used for attaching up to four SCSI hard-disk drives in the internal drive bays (see Figure 10-14).

The 50-pin (internal) Narrow SCSI cable connects SCSI devices to the 7880 Ultra/Wide controller.

The narrow connector at the end of the cable attaches to the secondary SCSI controller connector labeled "SCSI_NARROW" on the system board.

The other connectors on the cable are used for attaching SCSI devices installed in the externally accessible drive bays (see Figure 10-14).

An optional shielded external cable with a 68-pin connector is used for attaching an external SCSI device to the 7880 external SCSI connector on the system back panel.

Refer to the documentation that came with the external SCSI device for information on how to connect the device, set its SCSI ID, and disable termination.

Figure 10-14. Internal SCSI Cable

General Procedure for Installing SCSI Devices

Configure and install one or more SCSI devices in your computer as follows:

1.Determine which connector on the internal SCSI cable you will attach to each SCSI device. See "SCSI Configuration Guidelines" found earlier in this section.

2.Unpack each SCSI device and prepare it for installation.

CAUTIONS: Ground yourself by touching an unpainted metal surface on the back of the computer.

When you unpack the drive, do not set it on a hard surface, which may damage the drive. Instead, set the drive on a

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Contents Initial release 19 May When Using Your Computer System When Working Inside Your Computer Protecting Against Electrostatic Discharge System Features OverviewPage Page Reinstalling Windows NT Important Note to Windows NT 4.0 UsersCreating Disk Partitions for Windows NT Front PanelBack Panel Security Cable Slot and Padlock Ring Connecting External DevicesGetting Help Software Support Utilities on Diskette Dell-Installed Software Support UtilitiesBacking Up the Software Support Utilities Asset Tag Utility System Utilities and ServicesRemoving a Service Dell AutoShutdown Service Assigning and Deleting an Asset Tag NumberAsset 1234$ABCD Assigning and Deleting an Owner TagInstalling the Auto Power On Utility Dell ThermalShutdown ServiceAuto Power On Utility Microsoft Updated Atapi Drivers Removing the Windows NT 4.0 Microsoft Updated Atapi DriverEntering the System Setup Program System Setup ScreenUsing the System Setup Program System-Setup Navigation Keys Keys ActionSystem Setup Options System TimeSystem Date Diskette Drive a and Diskette Drive BPrimary Drive and Secondary Drive Eide DevicesBoot Sequence If You Have a ProblemHard-Disk Drive Sequence If You Know the Drive-Type NumberSystem Memory Reserved MemoryCPU Speed PXENIC CPU IDsIntegrated Devices Parallel Port Mode IDE Drive InterfaceDiskette Interface PC SpeakerSystem Password Password StatusSetup Password System SecurityReport Keyboard Errors Auto Power OnKeyboard NumLock Wakeup On LANSaving Eide Hard-Disk Drive Power Power ManagementSaving Monitor Power System Data Options Thermal Power-OffAsset Tag Using the System Password Feature Assigning a System PasswordType the password and press Enter Deleting or Changing an Existing System PasswordOperating With a Setup Password Enabled Using the Setup Password FeatureAssigning a Setup Password Disabling a Forgotten Password Deleting or Changing an Existing Setup PasswordResponding to Error Messages Information on resetting the chassis intrusion detectorQuick Start ICU Database When to Run the ICUAbout the ICU Accessing Help Preparing to Use the ICUStarting the ICU Backing Up the ICU DisketteAdding a Listed Card Keyss ActionCard Configuration Dialog Box Available Settings List Box Adding an Unlisted CardSpecify Interrupt Dialog Box Modifying a Card Specify I/O Port Dialog BoxRemoving a Card Saving the System Configuration Viewing ResourcesExiting the ICU Locking and Unlocking CardsLocking and Unlocking Configuration Resources Locking and Unlocking All ResourcesPage Connecting to a Network NIC Connector and IndicatorsWindows NT 4.0 NIC Driver Configuring the NICNetwork Cable Requirements Manually Configuring a 3Com PCI 3C905b NIC Setting the Network Frame TypeReinstallation Connecting Audio Devices SpeakersAdjusting Volume Adjusting Volume in Windows NTMicrophones Record/Playback DevicesAdjusting 3D Sound Using Audio UtilitiesInstalling Audio Drivers Muting the Internal SpeakerScsi Device Considerations Installing Scsi Drivers Scsi Drivers for Windows NTPage Unpacking Your Hardware Option Safety First-For You and Your ComputerBefore You Begin Removing the Computer Cover Replacing the Computer CoverInside Your Computer Replacing the Computer CoverRotating the Power Supply Away From the System Board Rotating the Power SupplySystem Board Features Expansion CardsInstalling an Expansion Card Expansion SlotsRemoving an Expansion Card Removing the Filler BracketDimm Installation Guidelines Adding MemoryTotal Dimm Socket Desired Memory Pentium II Xeon Processor Upgrades Adding or Replacing a Pentium II Xeon Processor Slot 2 SEC Cartridge/Heat Sink Assembly Removal Replacing the System Battery See Using the System Setup ProgramSystem Battery and Battery Socket Obtaining technical assistance Removing and Replacing the Front Bezel Drive LocationsConnecting Drives Removing and Replacing Front-Panel InsertsInstalling a Drive in a 5.25-Inch Drive Bay DC Power Cable ConnectorRemoving a Drive Inserting the New Drive Into the Drive Bay Installing an Eide Hard-Disk Drive Eide Drive Addressing10. Removing the Hard-Disk Drive Bracket 11. Inserting a 1-Inch Hard-Disk Drive Into the Bracket 13. Attaching Hard-Disk Drive Cables Scsi ID Numbers Installing Scsi DevicesScsi Configuration Guidelines Scsi Cables General Procedure for Installing Scsi DevicesDevice Termination ALERT! Cover was previously removed Partitioning and Formatting Scsi Hard-Disk Drives Expansion Bus Table A-1. Technical Specifications ProcessorSystem Information Drives Ports and ConnectorsSystem Clocks Controls and Indicators Key CombinationsPhysical Page Jumpers Jumpers and Switches-A General ExplanationSwitches Reserved do not remove jumper System Board Labels PARALLEL/SCSIPorts and Connectors Serial and Parallel PortsSerial Port Connectors Parallel Port Connector External Scsi Connector DparhKeyboard and Mouse Connectors Keyboard ConnectorMouse Connector Video ConnectorNIC Connector USB Connectors Microphone JackInterrupt Assignments Line-Out JackLine-In Jack Table B-9. Interrupt Assignments IRQ Line Used By/AvailableMemory Allocations Table B-10. Conventional Memory Map Address Range UseTable B-11. Upper Memory Map Address Range Use Corrective Action ICU Error MessagesTable C-1. Configuration Utility Messages Probable Cause Listed Card or Adding an Unlisted Card for instructions Change to the db subdirectory on the diskette drive Configuration Manager MessagesTable C-2. Configuration Manager Messages Page Cards mentioned Page Scheduling Backups Backup DevicesRecovering Data Data PreservationCleaning the Computer, Monitor, and Keyboard Exteriors Cleaning System ComponentsRecommended Tools and Accessories Cleaning Drives TemperatureEnvironmental Factors HumidityAltitude Dust and ParticlesCorrosion ESDShock and Vibration Power Source InterruptionsMagnetism Power Protection Devices Overview Class a Class B FCC Notices U.S. OnlyIC Notice Canada Only CE Notice European Union EN 55022 Compliance Czech Republic OnlyVcci Notice Japan Only Class a ITEClass a Device MOC Notice South Korea OnlyClass B ITE Polish Center for Testing and Certification Notice Class B DeviceNOM Information Mexico Only ExporterOne Dell Way Round Rock, TXInformación para NOM únicamente para México Coverage During Years Two and Three Overview Limited Three-Year Warranty U.S. and Canada OnlyCoverage During Year One Total Satisfaction Return Policy U.S. and Canada Only GeneralAcpi ADIAGP AsciiAsic AspiBios BBSBTU CD-ROM CmosCPU DATDimm DINDIP DMADmtf DpmsDram DTEECC ECPEeprom EideFAT EMSEprom FCC FTPGUI HMAHpfs IcesIPX IRQISA ITELAN XMMLED LVD
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