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This installation guide explains how to:
Install the Adaptec SCSI Card 39320A
Set up SCSI devices
Connect SCSI devices
Support for Older SCSI Devices
If you have single-ended Ultra SCSI and earlier SCSI devices,
Adaptec recommends that you connect them together on one
channel of the Adaptec SCSI Card 39320A and that you connect
newer Ultra320/160 SCSI and Ultra2 devices to the other channel.
This allows the Adaptec SCSI Card 39320A to dedicate one SCSI
channel to support a slower transfer rate for the Ultra (legacy)
devices, while the second SCSI channel can support LVD devices in
Ultra320, Ultra 160, or Ultra2 speeds. It also allows you to use
longer cable lengths for the newer SCSI devices.
Note: If you connect Wide Ultra/Ultra SCSI devices to the
same SCSI channel as Ultra320/160 and Ultra2 SCSI devices,
the data transfer rate for the Ultra320/160 and Ultra2 SCSI
devices will drop to Ultra SCSI performance levels. To achieve
maximum data transfer rates for the newer SCSI devices, be
sure to connect them on their own SCSI channel.
Installing the Adaptec SCSI Card 39320A
1
Discharge any static electricity build-up before handling your
SCSI card by touching a grounded metal object (like the
exposed metal parts on the back of your computer).
Warning: Turn OFF power to the computer and disconnect
the power cord.
2
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