Drives 75General GuidelinesFollow these general guidelines when installing SCSI devices in your computer:• Although you install SCSI devices essentially the same way as other devices, theirconfiguration requirements are different. For details on configuring your particularSCSI subsystem, see the documentation for your SCSI devices and/or your hostadapter card.• Configure the device for a SCSI ID number and disable termination, if necessary.• To use an external SCSI device, you must have a SCSI controller card installed in yourcomputer. Connect one end of the external SCSI cable to the connector on the backof the SCSI device. Attach the other end of the external SCSI cable to the connectoron the controller card installed in the computer.• After you install a SCSI hard drive, Primary Drive 0 and Primary Drive 1 should be setto None in system setup if no EIDE hard drives are installed. If you have any EIDEdevices on the second EIDE channel, such as a CD or tape drive, Secondary Drive 0and/or Secondary Drive 1 should be set to Auto.• You may need to use programs other than those provided with the operating system topartition and format SCSI hard drives. See the documentation that came with yourSCSI software drivers for information on installing the appropriate drivers andpreparing your SCSI hard drive for use.SCSI CablesUltra 320, Ultra 160/m, and Ultra2/Wide LVD drives (typically hard drives) both use a68-pin cable. One end of the cable attaches to the SCSI connector on the system board orthe SCSI controller card installed in your computer. The remaining connectors on the cableattach to the various drives.Narrow SCSI drives (tape drives, CD drives, and some hard drives) use a 50-pin cable. Oneend of this cable attaches to the SCSI controller card. The remaining connectors on thecable attach to the various Narrow SCSI devices.NOTICE: Dell recommends that you use only SCSI cables purchased from Dell. Cablespurchased elsewhere are not guaranteed to work with Dell computers.Hard DriveCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theSystem Information Guide.
