INSTALLATION GUIDE
ADAPTEC SCSI CARD 29320A
Introduction
The Adaptec SCSI Card 29320A enables you to connect up to 15
Low Voltage Differential (LVD) and/or 15 Single-Ended (SE) SCSI
devices—such as very large arrays of high-performance hard disk
drives, external storage subsystems, Ultra320/160 hard disk drives,
scanners, and CD-ROM drives—to any Intel-based computer with
64- or 32-bit PCI/PCI-X expansion slots.
The Adaptec SCSI Card 29320A has one internal and one external
68-pin LVD connector and two int ernal SE SCSI connectors (one
68-pin and one 50-pin).
68-pin internal SE
connector
50-pin internal SE
connector
68-pin external
LVD connector
68-pin internal LVD
connector
Although the Adaptec SCS I Card 29320A is a 64-bit PCI/PCI-X
card, it also works in a 32-bit PCI slot. When installed in a 32-bit
PCI slot, the card automatically runs in the slower 32-bit mo d e.
This installation guide explains ho w to:
■ Install the Adaptec SCSI Card 29320A
■ Set up SCSI devices
■ Connect SCSI devices
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Installing the Adaptec SCSI Card 29320A
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 After you turn off your computer and unplug the power cord,
remove the cover from the computer.
3 Locate an unused 64-bit PCI/PCI-X expansion slot and remove
the expansion slot cover. If the computer does not have a 64-bit
slot, you can install the card in a 32-bit PCI slot. The Adaptec
SCSI Card 29320A su p ports both 5V and 3.3V 64-bit slots. (The
expansion slot must be compliant with PCI Rev. 2.1 or PCI-X
Rev. 1.0 and must support Bus Mastering.) Save the slot cover
screw for use in Step 4.
Slot cover screw
Expansion slot cover
32-bit PCI slot
64-bit PCI slot
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Computers may have vertical or horizontal expansion slots.
Refer to your computer manual to locate the PCI/PCI-X slots. If
your computer is a tower model, lay it on its side to allow for
easier installation of the Adaptec SCSI Card 29320A.
Warning: Be careful when inserting the Adaptec SC SI Card
29320A in a PCI slot. Some 32-bit slots will not
accommodate it, and the card may break if you force it into
the slot.
4 Insert the Adaptec SCSI Card 29320A in the 64-bit (or 32-bit)
PCI or PCI-X expansion slot; press down firmly until the card
clicks into place, then replace the slot cover screw. When
installed properly, the card should appear level with the
expansion slot, as shown below.
Setting Up SCSI Devices
There are several things you may need to do to your SCSI devices
before you connect them to the Adaptec SCSI Card 29320A:
■ Check the SCSI IDs
■ Set the term ination
■ Connect the power cables
Since setup can vary from device to device, always refer to the
device’s documentation for specific instructions.
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Following are some guidelines for setting SCSI IDs and termination
on your devices.
Check the SCSI IDs
The Adaptec SCSI Card 29320A and each device you connect to it
must have a unique SCSI ID number ranging from 0 to 15 on each
channel. No two devices on the same SCSI channel can have the
same SCSI ID.
The Adaptec SCSI Card 29320A is preset to ID 7 for each channel
and should not be changed. If you boot from a SCSI hard disk,
make sure the hard disk SCSI ID is set to 0. (Most SCSI hard disks
are preset to SCSI ID 0 at the factory.) The SCSI IDs for internal
devices are usually set with jumpers; S C SI IDs for external devices
are usually set with a switch on the back of the device.
Terminate the Ends
T o ensur e reliable communication on the SCSI bus, the device at the
end of each cable, or the end of the cable itself, must have a
terminator installed (or enabled). Terminators must be removed, or
termination must be disabled, on devices between the ends of each
cable.
Note: When connecting Ultra320/160 or Ultra2 SCSI devices,
the SCSI bus must be terminated either on the end of the cable
(with a permanent terminator) or with a separate terminating
connector. Ultra SCSI and earlier single-ended devices can
terminate the bus directly from the device. If you use an Ultra
SCSI terminator on an LVD Ultra320/160 and Ultra2 SCSI
bus, the SCSI devices will not operate properly. For this
reason be sure that you have the necessary Ultra320/160 or
Ultra2 cable and terminator before installing the Ultra320/160
SCSI devices.
Connecting SCSI Devices
You can connect a total of 15 LVD and/or 15 SE SCSI devices to the
Adaptec SCSI Card 29320A. Before connecting devices, be sure to
review Setting Up SCSI Devices on page 3.
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