Adaptec 29160LP - SCSI Card Storage Controller U160 160... Service manual

USER’S
REFERENCE
ADAPTEC SCSI CARD 29160LP
ULTRA160 SCSI CONTROLLER

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Adaptec, Inc.
691 South Milpitas Boulevard
Milpitas, CA 95035
© 2000 Adaptec, Inc.
All rights reserved. Adaptec and the Adaptec logo
are trademarks of Adaptec, Inc. which may be
registered in some jurisdictions.
Printed in Singapore
STOCK NO.: 512591-03, Rev. A DR 05/2000
(SRC: 512591-00, Ver. AA)

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Adaptec SCSI Card 29160LP
Ultra160 SCSI Controller
User’s Reference

iii
Contents
Overview 1
Ultra160 SCSI on the Adaptec SCSI Card 29160LP 1
Understanding SCSI 1
SCSI IDs 2
Terminating the SCSI Bus 3
Troubleshooting 4
Troubleshooting Checklist 4
Troubleshooting in Windows 95/98 5
Common Error Messages 9
Using the Adaptec SCSI Card 29160LP and SCSI
Devices 10
Using SCSI Devices 10
SCSI Hard Disk Drives 10
Ultra160 Hard Disk Drives 11
Combining SCSI and Non-SCSI Devices 12
Installing Multiple SCSI Cards 13
Connecting the LED Connector 13
Configuring the
Adaptec SCSI Card 29160LP with SCSISelect 14
Starting SCSISelect 16
Exiting SCSISelect 16
Using SCSISelect Settings 16
SCSI Bus Interface Definitions 17
Boot Device Options 17
SCSI Device Configuration 17
Advanced Configuration Options 19
Using SCSI Disk Utilities 21

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Adaptec SCSI Card 29160LP User’s Reference
Connecting SCSI Devices 22
Maximum Cable Lengths 23

1
Overview
Ultra160 SCSI on the Adaptec SCSI Card
29160LP
The Adaptec SCSI Card 29160LP supports Ultra160 SCSI devices.
Ultra160 is a new generation of SCSI technology that expands SCSI
performance.
This User’s Reference provides information about troubleshooting,
SCSI termination, and other important topics. It also explains how to
use the built-in SCSISelect utility if you need to change the Adaptec
SCSI Card 29160LP settings.
Note: Read the Adaptec SCSI Card 29160LP Installation Guide
if you need instructions on installing the SCSI Card, or con-
necting SCSI devices to it.
The Adaptec SCSI Card 29160LP was designed for Low Profile
systems (cases); however Adaptec provides an additional bracket
that can be installed for use with standard system cases.
Understanding SCSI
SCSI (pronounced “scuzzy”) stands for Small Computer Systems
Interface. SCSI is an industry standard computer interface for
connecting SCSI devices to a common SCSI bus.
A SCSI bus is an electrical pathway that consists of a SCSI adapter
card (such as the Adaptec SCSI Card 29160LP) installed in a

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Adaptec SCSI Card 29160LP User’s Reference
computer and one or more SCSI devices. SCSI cables are used to
connect the devices to the SCSI adapter card.
For the SCSI bus to function properly, a unique SCSI ID must be
assigned to the SCSI card and each SCSI device connected to it, and
the SCSI bus must be properly terminated.
SCSI IDs
Each device attached to the Adaptec SCSI Card 29160LP, as well as
the Adaptec SCSI Card 29160LP itself, must be assigned a unique
SCSI ID number from 0 to 15. A SCSI ID uniquely identifies each
SCSI device on the SCSI bus and determines priority when two or
more devices are trying to use the SCSI bus at the same time.
Refer to the device’s documentation to set the SCSI ID. Here are
some general guidelines for SCSI IDs:
■For internal SCSI devices, the SCSI ID usually is set by config-
uring a jumper on the device.
■For external SCSI devices, the SCSI ID usually is set with a
switch on the back of the device.
■SCSI ID numbers don’t have to be sequential, as long as the
Adaptec SCSI Card 29160LP and each device has a different
number. For example, you can have an internal SCSI device
with ID 0, and an external SCSI device with ID 6.
■SCSI ID 7 has the highest priority on the SCSI bus. The priority
of the remaining IDs, in descending order, is 6 to 0, 15 to 8.
■The Adaptec SCSI Card 29160LP is preset to SCSI ID 7 and
should not be changed. This gives it the highest priority on the
SCSI bus.
■Most internal SCSI hard disk drives come from the factory pre-
set to SCSI ID 0.
■If you have 8-bit (or Narrow) SCSI devices, they must use SCSI
IDs 0, 1, 2, 3, 4, 5, or 6. SCSI ID 0 is recommended for the first
SCSI hard disk drive.

3
Overview
■If you are booting your computer from a SCSI hard disk drive
connected to the Adaptec SCSI Card 29160LP, the Boot Target
ID setting in the SCSISelect utility must correspond to the SCSI
ID of the device from which you are booting. By default, the
Boot Target ID is set to 0. We recommend that you do not
change this setting.
■In Windows®95/98, you can use the Device Manager to deter-
mine which SCSI ID is assigned to each installed SCSI device.
Terminating the SCSI Bus
To ensure reliable communication on the SCSI bus, the ends of the
SCSI bus must be properly terminated. This is accomplished when
the device at the end of each cable, or the end of the cable itself, has a
terminator installed (or enabled). Terminators must be removed, or
termination must be disabled, on devices between the ends of each
cable.
Since the method for terminating a SCSI device can vary widely,
refer to the device’s documentation for instructions on how to
enable or disable termination. Here are some general guidelines for
termination:
■Internal Ultra160 and Ultra2 SCSI devices come from the fac-
tory with termination disabled and cannot be changed. Proper
termination for internal Ultra160 and Ultra2 SCSI devices is
provided by a 68-pin Internal LVD SCSI cable, which has a
built-in terminator at its end.
■Termination on non-Ultra160 and Ultra2 internal SCSI devices
usually is controlled by manually setting a jumper or a switch
on the device, or by physically removing or installing one or
more resistor modules on the device.
■Termination on external SCSI devices usually is controlled by
installing or removing a SCSI terminator. However, termina-
tion on some external devices is enabled or disabled by setting
a switch on the back of the SCSI device.
■By default, termination on the Adaptec SCSI Card 29160LP
itself is set to Automatic (the preferred method). We recom-
mend that you do not change this default setting.

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Adaptec SCSI Card 29160LP User’s Reference
Troubleshooting
Most problems can be resolved by following the recommendations
in the Troubleshooting Checklist below. If you still experience
problems after following the recommendations, continue with the
rest of this section.
Troubleshooting Checklist
Most problems with using the Adaptec SCSI Card 29160LP result
from errors in preparing and connecting devices on the SCSI bus. If
you have problems, check these items first:
■Are all SCSI devices turned on?
■Are all SCSI cables and power cables properly connected?
■Is the Adaptec SCSI Card 29160LP firmly seated and secured in
the PCI expansion slot?
■Is the PCI expansion slot compliant with PCI Rev. 2.1 or higher,
and does it support Bus Mastering?
■Are all SCSI devices and the Adaptec SCSI Card 29160LP
assigned unique SCSI IDs?
■Are all SCSI devices terminated properly?
Note: If you have problems with a specific SCSI device when
other connected SCSI devices are working correctly, please
contact the manufacturer of the problem device for trouble-
shooting information.

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Troubleshooting
Troubleshooting in Windows 95/98
When I start Windows 95/98, the system locks up when the Windows
logo is displayed. How can I get the system to start so that I can verify
that the SCSI card is functioning normally?
1Start or restart your computer.
2(For Windows 95:) When the message “Starting Windows 95”
appears, press and release the F8 function key while the text is
on your screen.
(For Windows 98:) When the message “Starting Windows 98”
appears, press and release the Ctrl key while the text is on your
screen.)
3From the menu that is displayed, select Safe Mode. (It may
take several minutes for Windows 95/98 to load.)
4If the system completes the boot to the desktop, the core soft-
ware is functional; resources, software conflicts, and/or hard-
ware need to be checked.
5If the system still fails to boot, and the boot drive is connected
to an EIDE controller, shut down the system, remove the
Adaptec SCSI Card 29160LP, and restart the computer.
6Verify that an IRQ is available by viewing resources in System
Properties.
7Right click on the My Computer icon on the Windows
desktop.
8Select Properties from the menu.
9Click the Performance tab.
10 Verify that your system is configured for optimal performance.
(Make sure you are not in Safe Mode.)

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Adaptec SCSI Card 29160LP User’s Reference
How can I tell if the Adaptec SCSI Card 29160LP driver is loading
properly?
1Right click on the My Computer icon on the Windows
desktop.
2Select Properties from the menu.
3Click the Device Manager tab.
4Double-click the SCSI Controller icon. The software driver for
the Adaptec SCSI Card 29160LP is listed as 29160, 29160N,
and Ultra160 PCI SCSI Controller.
■If the driver is listed, the Adaptec SCSI Card 29160LP
driver is loading properly.
■If the driver is listed but has an exclamation mark inside a
yellow circle the software driver may conflict with other
hardware using the same resources. Double-click the icon
to see the device status and possible solutions.
■If the driver is listed but has an “X” inside a red circle, the
Adaptec SCSI Card 29160LP software driver is disabled
and isn’t loading.
■If the SCSI Controller icon or the Adaptec SCSI Card
29160LP software driver is not listed, reinstall the driver.
An “X” inside a red circle appears with the Adaptec SCSI Card 29160LP
software driver in Device Manager. What does this mean?
It means that the Adaptec SCSI Card 29160LP software driver is dis-
abled and isn’t loading.
To enable the driver
1Double-click the Adaptec SCSI Card 29160LP software driver
in Device Manager.
2Under the General tab, click the Original Configuration (cur-
rent) box.

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Troubleshooting
What if there is no SCSI Controller icon under Device Manager, or the
software driver for the Adaptec SCSI Card 29160LP does not appear
under Device Manager?
If the SCSI Controller icon or the software driver do not appear
1Double-click the Add New Hardware icon in Control Panel.
2Click Next to begin installing your new hardware.
3Select the Yes (recommended), and Next to have Windows
search for the Adaptec SCSI Card 29160LP.
4Follow the on-screen instructions.
If Windows 95/98 does not detect the Adaptec SCSI Card 29160LP,
obtain the driver from the computer manufacturer and run the Add
New Hardware Wizard again:
1Double-click the Add New Hardware icon in Control Panel.
2Select Next to begin installing your new hardware.
3Select No, and click Next to select the type of hardware you
want to install.
4Select SCSI controllers from the Hardware types, and click
Next.
Note: .The 29160LP will not appear on the Models list when
Adaptec is selected from the Manufacturers list.
5Click Have Disk… and follow the instructions that appear on
the screen.
6Select 29160, 29160N, or Ultra160 PCI SCSI Controller.
How can I check the status of a resource such as IRQ, Memory, or I/O?
1Right click on My Computer.
2Select Properties from the menu.
3Click the Device Manager tab.
4Double-click the Computer icon.

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Adaptec SCSI Card 29160LP User’s Reference
5On the View Resources tab, click the option button for the type
of resource you want to check:
■Interrupt Request (IRQ)
■Input/Output Address (I/O)
■Direct Memory Access (DMA)
■Memory
6The setting, and the hardware using the setting, are displayed.
■If a specific resource is not listed, the resource is not used
by a device.
■If a resource is listed more than once, the resource is used
by more than one device.
■If a resource is used by an unknown device, the resource is
used but the device using the resource cannot be detected.
(This condition is most common.)
7Click Cancel to close the windows, then close Control Panel.
How do I use the Hardware Conflict Troubleshooter in Windows 95/98?
1Click the Start button, then click Help.
2From the Contents tab, double-click Troubleshooting. (In
Windows 98, click Troubleshooting and then click Windows
98 Troubleshooting.)
3Double-click if you have a hardware conflict.
4Follow the step-by-step instructions in Windows Help.

9
Troubleshooting
Common Error Messages
Here is what you should do if the following messages appear at
bootup:
“Device connected, but not ready”
The host received no answer when it requested data from an
installed SCSI device.
1Run SCSISelect®and set the Send Start Unit Command to Yes
for the particular SCSI device ID. See Starting SCSISelect on
page 16.
2Ensure that the device is set to spin up when the power is
switched on. The spin up option is typically set by a jumper.
(See the documentation for the device.)
“Start unit request failed”
The SCSI card BIOS was unable to send a Start Unit Command to
the device. Verify all cables are properly connected. If the error still
occurs, the SCSI device may be defective.
“Time-out failure during...”
An unexpected time-out occurred.
1Verify that the SCSI bus is properly terminated.
2Verify that all cables are properly connected.
Try disconnecting the SCSI device cables from the SCSI card and
then starting the computer. If the computer successfully restarts, one
of the SCSI devices may be defective.

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Adaptec SCSI Card 29160LP User’s Reference
Using the Adaptec SCSI
Card 29160LP and SCSI
Devices
This section provides useful information on using the Adaptec SCSI
Card 29160LP and your SCSI devices. For information about a
specific device, refer to the documentation for that device.
Using SCSI Devices
SCSI Hard Disk Drives
■If you connect a SCSI hard disk drive to the Adaptec SCSI Card
29160LP that was previously connected to a different SCSI
card, you may need to low-level format the drive before you
can use it. This is due to the fact that different SCSI cards some-
times use dissimilar methods of calculating drive capacity.
Back up the data on the drive before you move it! (See Using
SCSI Disk Utilities on page 21 for information on using the
SCSISelect format utility.)
Caution: A low-level format destroys all data on the drive.
Be sure to back up the data before performing a low-level
format.
■Every SCSI hard disk drive must be physically low-level
formatted, partitioned, and logically formatted before it can be
used to store data. Most SCSI drives are pre-formatted at the
factory. If your SCSI hard disk drive has not been
pre-formatted at the factory, and if your computer is running
under DOS, Windows 3.x, or Windows 95/98, you can format
the disk with the DOS FDISK and FORMAT commands. (See
the DOS and Windows documentation for more information.)
To format SCSI hard disk drives running under other operating
systems, see the operating system documentation.

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Using the Adaptec SCSI Card 29160LP and SCSI Devices
Ultra160 Hard Disk Drives
■We recommend keeping your Ultra160 and Ultra2 SCSI
devices separate from your single embeded devices. If you
connect a legacy SCSI hard disk drive to the Adaptec SCSI
Card 29160LP LVD/SE connectors, the Ultra160 SCSI hard disk
drives will slow to Ultra SCSI performance levels (40 MBytes/
sec).
■Internal Ultra160 SCSI devices come from the factory with ter-
mination disabled and cannot be changed. Proper termination
is provided by the terminator at the end of the internal
Ultra160 SCSI cable.
68-pin Internal
LVD/SE Connector
68-pin External
VHDCI condensed
LVD/ SE Connector

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Adaptec SCSI Card 29160LP User’s Reference
Combining SCSI and Non-SCSI Devices
You can install the Adaptec SCSI Card 29160LP in a computer that
already has a non-SCSI controller, such as an EIDE controller.
However, you cannot cross-connect the disk drives and other
devices: SCSI devices must be connected to the Adaptec SCSI Card
29160LP, EIDE devices must be connected to the EIDE controller,
and so on.
When you install the Adaptec SCSI Card 29160LP and SCSI hard
disk drives in a computer that boots from a non-SCSI hard disk
drive, the computer will continue to boot from the non-SCSI hard
disk drive unless you change the computer’s CMOS configuration.
You do not need to change the configuration if you just want to use
the SCSI drives for additional file storage space.
If your computer’s motherboard BIOS supports the BIOS Boot
Specification (BBS) feature, you can select a different boot device
without much difficulty. (To determine if the motherboard BIOS
supports BBS, read the computer documentation or contact your
motherboard manufacturer.)
The following table shows what to do, after you physically install
the SCSI card and SCSI devices, to use different kinds of disk drives
in the same computer:
Does computer
BIOS support
BBS?
Want computer to
boot from SCSI
drive? Then do this:
No No No action required. SCSI drives and
non-SCSI drives can be used together.
No Yes Run CMOS Setup program. Change
primary Hard Disk setting to None
or No Drives Installed (see computer
documentation). You will not be able to
use the non-SCSI drive(s) at all when
you boot from the SCSI drive.
Yes No No action required. SCSI drives and
non-SCSI drives can be used together.
Yes Yes Run CMOS Setup program and select
SCSI drive as boot device. SCSI
drives and non-SCSI drives can be
used together.

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Using the Adaptec SCSI Card 29160LP and SCSI Devices
Installing Multiple SCSI Cards
■You can install multiple SCSI cards in your computer; you are
limited only by the available system resources (for example,
IRQ settings, I/O port addresses, BIOS addresses, and so
forth).
■Each SCSI card you install forms a separate SCSI bus with a
different set of SCSI devices. SCSI IDs can be reused as long as
the ID is assigned to a device on a different SCSI card (for
example, each SCSI card can have a device with SCSI ID 2).
■If you have two or more SCSI cards and your computer boots
from a SCSI hard disk drive, leave the host adapter BIOS
enabled on the SCSI card to which the boot disk drive is con-
nected. Use SCSISelect to disable the host adapter BIOS on the
other SCSI cards. See Starting SCSISelect on page 16.
Connecting the LED Connector
(Optional feature) Most computers have an LED disk activity light on
the front panel of the system case. If you choose to disconnect the
cable from the LED connector on the motherboard and connect it to
the LED connector on the SCSI card as shown in the diagram below,
the LED on the front panel of the computer will light whenever
there is activity on the SCSI bus.
Note: If you connect the LED cable to the SCSI card, the LED
activity light will no longer indicate disk activity on the
non-SCSI disk drive.
LED Connector
on host adapter
1
LED Cable
from
motherboard
Pin 1
1
2-pin
LED
Cable

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Adaptec SCSI Card 29160LP User’s Reference
Configuring the
Adaptec SCSI Card 29160LP
with SCSISelect
SCSISelect, included with the Adaptec SCSI Card 29160LP, enables
you to change SCSI settings without opening the computer or
handling the card. SCSISelect also enables you to low-level format or
verify the disk media of your SCSI hard disk drives. The following
table lists the available and default settings for each SCSISelect
option.
Note: The default settings are appropriate for most systems.
Run SCSISelect if you need to change or view current set-
tings, or if you would like to run the SCSI disk utilities. See
the descriptions of each option starting on page 16.
SCSISelect Options Available Settings Default Setting
SCSI Bus Interface Definitions:
Host Adapter SCSI ID 0-15 7
SCSI Parity Checking Enabled, Disabled Enabled
Host Adapter SCSI Termination
LVD/SE Connectors Automatic,
Enabled, Disabled
Automatic
Boot Device Options:
Boot SCSI ID 0-15 0
Boot LUN Number10-7 0
SCSI Device Configuration:
Sync Transfer Rate (MBytes/sec) 160, 80.0, 53.4, 40.0,
32.0, 26.8, 20.0, 16.0,
13.4, 10.0, ASYN
160
Initiate Wide Negotiation Yes, No Yes (Enabled)
Enable Disconnection Yes, No Yes (Enabled)
Send Start Unit Command Yes, No Yes (Enabled)
Enable Write Back Cache 2N/C (No Change)
Yes, No
N/C (No
Change)