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An integrated Adaptec AIC-7860 Ultra/Narrow SCSI host adapter attached to the PCI bus supports the CD-ROM drive through a 50-pin connector on the system board.

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Dell PowerEdge 6350 systems include a SCSI backplane board, which greatly simplifies cabling and configuration for SCSI hard-disk drives. SCSI ID and termination for SCSI hard-disk drives are both configured by the SCSI backplane board, rather than on individual drives.

All Dell PowerEdge 6350 systems have an active terminator installed at the end of the SCSI cable; therefore, all devices attached to the cable should have their termination disabled.

NOTE: For maximum performance, install Ultra2/LVD drives exclusively. Although you can install a mixture of Ultra2/LVD and Ultra hard-disk drives, they will operate at the slower Ultra transfer rate.

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SCSI hard-disk drives are supplied by Dell in special drive carriers that fit in the front-loading drive bays. SCSI hard-disk drives must be configured as follows:

‡Disable termination on the drive. The SCSI backplane board provides termination for the SCSI bus.

‡Set the SCSI ID on the drive to 0. All hard-disk drive SCSI ID numbers are set by the SCSI backplane board.

‡Configure the drives so that the drive motors wait for a start unit command from the SCSI host adapter before spinning.

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CD-ROM drives should be set to SCSI ID 5, and their termination should be disabled.

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The Dell PowerEdge 6350 system includes a PSPB and three 275-

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