Specifications

5 ATTO Technology ExpressPCI UL4D and UL4S Installation and Operation Manual
3 Installing hardware
Install the ATTO ExpressPCI Ultra320 host adapter and attach your SCSI devices to it using the
instructions below. To get the best performance from your ATTO Express Ultra320 host adapters, use
Ultra320 SCSI devices.
WARNING Remember to back up your system data
before changing or installing hardware.
System requirements
The ATTO Express PCI host adapter package
contains the host adapter, the ATTO Express Pro-
Tools CD and a warranty and registration card. If
any of these items are missing, contact your
ATTO authorized sales representative.
To install and use the ATTO ExpressPCI SCSI
adapter you will need:
❖ A computer with an available 64-bit PCI-X
expansion slot (preferred) or a standard 64-
bit PCI expansion slot.
❖ The complete ATTO ExpressPCI SCSI host
adapter package.
WARNING ATTO ExpressPCI host adapters contain
components that are sensitive to electrostatic discharge
(ESD). ESD can cause damage to the ExpressPCI host
adapter. Please follow standard methods to avoid ESD.
Installation
Remember to back up your system data before
changing or installing hardware.
1 Plan your SCSI device connections.
If connecting both internal and external devices to
the ATTO ExpressPCI SCSI adapter, be sure to
have the appropriate cables to connect devices.
2 Set SCSI device termination. Devices at
both ends of the SCSI bus must be
terminated.
Devices in the middle of the bus, including the ATTO
ExpressPCI adapter, must have termination
removed or disabled. The ATTO ExpressPCI SCSI
UL4S and UL4D adapters will select proper
termination if left in auto termination mode.
3 Set SCSI IDs. Each device on the SCSI bus
requires a unique SCSI ID, one different
from the host adapter ID. The default setting
for the ATTO ExpressPCI adapter is 7.
If you need to change this setting, refer to the
ExpressPCI Utilities Installation and Operation
manual. Also refer to your SCSI device
documentation to determine the current SCSI ID
and how to change it. Wide (16-bit) SCSI devices
can be assigned IDs 0-6 and 8-15, while Narrow (8-
bit) devices can only be assigned IDs ranging from
0-6.
4 Review system documentation to select an
appropriate slot to install your ATTO
ExpressPCI SCSI adapter. The combined
power consumption of your expansion slots
must not exceed the limits for your system.
If you have more than one expansion card
installed, make sure power consumption is
within the limits outlined in your system
documentation.
5 Power down the computer and unplug the
computer from all power sources.
6 Open the case.
7
Install the ATTO ExpressPCI host adapter in
any open PCI expansion slot. If you have
questions about how to install an expansion
card in your system, consult your
computer’s documentation.
For best performance, ATTO recommends using
PCI-X expansion slots.
8 Connect SCSI devices by inserting a SCSI
cable to the connector on the ATTO
ExpressPCI host adapter until you hear a
click. Refer to Chapter 3.1 when selecting
cables.
9 Close the case on the computer and power
it up.