Dell GX1 technical specifications Installing Scsi Devices, Scsi Configuration Guidelines

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Installing Drives: Dell OptiPlex GX1 Low-Profile Managed PC Systems

Installing SCSI Devices

To use SCSI devices in your Dell computer, you must have a SCSI host adapter card, which comes with its own SCSI cable. This cable can be used to attach a variety of SCSI devices (hard-disk drives, tape drives, and so on). The SCSI host adapter configures the devices attached to it as one subsystem—not as independent devices.

Although SCSI devices are installed essentially the same way as other devices, their configuration requirements are different.

SCSI Configuration Guidelines

For details on configuring your SCSI subsystem, refer to the documentation that came with your SCSI devices and/or your host adapter card. The following subsections offer some general guidelines.

SCSI ID Numbers

Each device attached to a SCSI host adapter card, as well as the card itself, must have a unique SCSI ID number from 0 to 7. When SCSI devices are shipped from Dell, the default SCSI ID numbers are assigned as follows:

A SCSI host adapter card is configured as SCSI ID 7 (typically the default ID for a host adapter card). A SCSI tape drive or digital audio tape (DAT) drive is configured as SCSI ID 6 (typically the default ID number for a tape drive).

A SCSI CD-ROM drive is configured as SCSI ID 5.

SCSI hard-disk drives are usually configured as SCSI ID 0. (The drive used to boot your system should always be configured as SCSI ID 0.)

NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that devices be attached to the cable in order by ID number.

SCSI Cable and SCSI Termination

The type of cabling you receive with your SCSI device depends on the type of device you are installing.

If you are installing internal SCSI devices (such as CD-ROM, hard-disk, or tape drives), you have internal SCSI cables as shown in Figure 14. Narrow SCSI devices use a 50-pin cable; wide SCSI devices use a 68-pin SCSI cable. One end of each cable attaches to the SCSI host adapter. The connectors on the other end of the cable attach to the internal SCSI devices.

If you are installing an external SCSI device, you have a shielded external cable that connects to the external SCSI connector on the SCSI host adapter card. You have a separate power cable to connect the SCSI device to an AC power source.

Before installing SCSI devices in your computer, you may need to configure the termination on your SCSI device(s). Both types of internal SCSI cables contain terminators on the device end of the cables, so the devices connected to these cables must have termination disabled (see Figure 14). External SCSI cables do not have terminators, so termination must be enabled on the SCSI device itself.

Figure 14. Internal SCSI Cables

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Contents Initial release 7 Dec Last revised 31 Jan System Features OverviewHardware Features 640 × True-color 32 bpp 85 Hz 800 ×Software Features Manageability Features Dell OpenManage ProgramFault Management Auto Power On Wakeup On LANTemperature Monitoring Security FeaturesConnecting Peripheral Devices O Ports, Connectors, and IndicatorsUSB Connectors Parallel Port ConnectorMouse Connector Integrated NIC ConnectorSerial Port Connectors Audio ConnectorsVideo Connector Keyboard ConnectorUsing the Power Switch Using the Optional Stand for Vertical Orientation Attaching the Optional Stand for Vertical OrientationEnergy Star Compliance Energy Star EmblemAccessing Online Documentation Getting HelpEntering the System Setup Program Enter the System Setup program as followsSystem Setup Screens System Setup ScreensPage System-Setup Navigation Keys Keys Action Using the System Setup ProgramSystem Setup Options TimeDrives Primary and Secondary DateDiskette Drive A, Diskette Drive B, and Use ZIP as a or B Reserved Memory Chassis Intrusion CPU SpeedNum Lock DAC SnoopPassword Status Keyboard ErrorsSystem Password Boot Sequence Device-List Screen Navigation Keys Keys ActionSample Device List Screen Setup Password Saving Eide Hard-Disk Drive Power Power ManagementSaving Monitor Power Sound MouseParallel Port Parallel ModeSerial Port 1 and Serial Port IDE Hard DiskSpeaker Using the System Password FeatureDiskette System Data OptionsAssigning a System Password Using Your System Password to Secure Your System Type the password and press EnterUsing the Setup Password Feature Deleting or Changing an Existing System PasswordAssigning a Setup Password Page Responding to Error Messages Back to ContentsOverview Quick Start About the ICUICU Database When to Run the ICUPreparing to Use the ICU Backing Up the ICU Diskette Accessing HelpStarting the ICU ICU Keys Keys Action Adding a Listed CardMaking Selections in the ICU Add Network Card Dialog Box Configuration Settings Dialog Box for Assigning an IRQ Line Adding an Unlisted Card Specify Interrupt Dialog Box Specify I/O Port Dialog Box Modifying a Card Removing a Card Viewing Resources System Resource Usage Dialog BoxLocking and Unlocking Cards Saving the System ConfigurationExiting From the ICU Locking and Unlocking All ResourcesLocking and Unlocking Configuration Resources Safety First For You and Your Computer Before You BeginRemoving the Computer Cover Unpacking Your Hardware OptionReplacing the Computer Cover Replacing the Computer CoverInside Your Computer Computer Orientation ViewJumpers System Board JumpersSystem-Board Jumper Settings Description BUS66MSystem Board and Riser Board Labels LPT1Removing and Replacing the Expansion-Card Cage Removing the Expansion-Card CageReplacing the Expansion-Card Cage System Board Features Expansion Cards Expansion Cards Expansion SlotsRemoving the Filler Bracket Removing an Expansion Card Adding Memory DIMMs and Dimm SocketsPerforming a Memory Upgrade Installing a Dimm Installing a Dimm Removing a Dimm Adding Video MemoryInstalling a Video-Memory Upgrade Module Upgrading the Microprocessor Removing the MicroprocessorReplacing the System Battery Page System Battery and Battery Socket Drive Locations Removing and Replacing Front-Panel Inserts Removing the Front-Panel Insert for a 5.25-Inch BayConnecting Drives DC Power Cable ConnectorInstalling a Drive in the 5.25-Inch Drive Bay Removing the 3.5-Inch Diskette Drive/Bracket Assembly Installing the 5.25-Inch Diskette Drive Bracket Attaching Cables to a Drive in the 5.25-Inch Drive Bay Installing an Eide Hard-Disk Drive Eide Drive AddressingRemoving the Hard-Disk Drive Bracket Securing the Hard-Disk Drive to the Bracket ALERT! Cover was previously removed Page Installing Scsi Devices Scsi Configuration GuidelinesGeneral Procedure for Installing Scsi Devices Page ALERT! Cover was previously removed Partitioning and Formatting Scsi Hard-Disk Drives Expansion Bus MicroprocessorSystem Information Ports MemoryDrives Video Key CombinationsPhysical Controls and IndicatorsPower EnvironmentalBack to Contents ICU Error Messages Message Probable Cause Corrective ActionLoaded card is not a Conflictingcard This is An Eisa system. Use Probable Cause Corrective Action Configuration Manager MessagesMessage Error Failed to activate device, CSN=Card Select Number See Modifying a Card for instructions See Adding a Listed Card for instructions
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