3Com Corporation reserves the right to revise this documentation and to make changes in content
from time to time without obligation on the part of 3Com Corporation to provide notification of such
revision or change.
3Com Corporation provides this documentation without warranty, term, or condition of any kind,
either implied or expressed, including, but not limited to, the implied warranties of merchantability and
fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the
program(s) described in this documentation at any time.
UNITED STATES GOVERNMENT LEGENDS:
If you are a United States government agency, then this documentation and the software described
herein are provided to you subject to the following:
United States Government Legend:
nature and developed solely at private expense. Software is delivered as Commercial Computer
Software as defined in DFARS 252.227-7014 (June 1995) or as a commercial item as defined in
FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard
commercial license for the Software. Technical data is provided with limited rights only as provided in
DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not
to remove or deface any portion of any legend provided on any licensed program or documentation
contained in, or delivered to you in conjunction with, this User Guide.
If there is any software on removable media described in this documentation, it is furnished under a
license agreement included with the product as a separate document, in the hard copy documentation,
or on the removable media in a directory file named LICENSE.TXT. If you are unable to locate a copy,
please contact 3Com and a copy will be provided to you.
Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or
may not be registered in other countries.
3Com, the 3Com logo, EtherDisk, EtherLink, Net Age, Parallel Tasking, SmartAgent, and Transcend are
registered trademarks of 3Com Corporation. AutoLink, Dynamic
3Com Corporation. 3ComFacts is a service mark of 3Com Corporation.
Magic Packet is a trademark of Advanced Micro Devices, Inc. Anixter is a trademark of Anixter Bros.,
Inc. Artisoft and LANtastic are trademarks of Artisoft, Inc. Banyan and VINES are trademarks of Banyan
Systems, Incorporated. CompuServe is a registered trademark of CompuServe, Inc. Alpha, DEC, and
PATHWORKS are trademarks of Digital Equipment Corporation. Pentium is a registered trademark of
Intel Corporation. IBM and OS/2 are trademarks of International Business Machines Corporation.
Microsoft, Windows, and Windows NT are trademarks of Microsoft Corporation. Novell and NetWare
are trademarks of Novell, Inc. Open Desktop and SCO are trademarks of The Santa Cruz Operation, Inc.
Other brand and product names may be registered trademarks or trademarks of their respective
holders.
Guide written by Jean Anderson. Edited by Nancy Kurahashi. Technical illustration by Mary Inden.
Production by Becky Whitmer.
All technical data and computer software is commercial in
Access
, and PACE are trademarks of
ii
C
ONTENTS
ONTENTS
C
A
BOUT THIS GUIDE
Finding Specific Information in This Guide 1
Conventions 2
1
I
NTRODUCTION
Industry-Leading Performance 1-2
DynamicAccess Software 1-2
Remote Wake-up 1-3
Installation and Configuration 1-3
10/100 Mbps Support 1-3
PC and Server Requirements 1-3
How Do I Install the 3C905B-TX NIC? 1-4
2
I
NSTALLING THE
Connecting to the Network 2-3
Connecting the Remote Wake-up Cable 2-4
NIC
3
I
NSTALLING THE NETWORK DRIVER
Windows 95 3-1
Confirming Installation 3-4
Windows NT 3-5
Windows NT Version 4.0 3-5
Updating the Network Driver 3-5
Installing the Network Driver 3-6
Windows NT Version 3.51 3-7
Updating the Network Driver 3-7
Installing the Network Driver 3-8
NetWare for Windows 3.1x, Windows for Workgroups,
and DOS 3-9
AutoLink Requirements 3-9
Running the AutoLink Program 3-9
iii
Installing the Novell NetWare Server Driver 3-10
NetWare Version 4.1 3-10
Multiple NICs 3-11
Supported Network Drivers 3-12
4
T
ROUBLESHOOTING
Status LEDs 4-1
3Com NIC Diagnostics Program 4-2
Accessing the 3C905B-TX Help System 4-3
Displaying Release Notes, Frequently Asked Questions,
and the KnowledgeBase 4-3
Running the NIC Self-Test 4-4
Running the Echo Test 4-6
3Com Support Services 4-7
Generating a Problem Report 4-8
Removing the 3C905B-TX NIC PACE and
3NICDIAGS Software 4-11
Windows 95 and Windows NT 4.0 4-11
DOS 4-11
Checking the Remote Wake-up Function 4-11
3Com DOS Diagnostic Program 4-12
Crossover Cable Troubleshooting Tips 4-13
Troubleshooting Hubs with Crossover Cable 4-14
Frequently Asked Questions 4-15
Accessing the 3Com World Wide Web Page 4-19
World Wide Web Site B-1
3Com Bulletin Board Service B-1
Access by Analog Modem B-2
Access by Digital Modem B-2
3ComFacts Automated Fax Service B-2
3ComForum on CompuServe Online Service B-3
Support from Your Network Supplier B-3
Support from 3Com B-4
Returning Products for Repair B-6
G
LOSSARY
I
NDEX
3COM C
FCC C
FCC D
ORPORATION LIMITED WARRANTY
LASS
B S
ECLARATION OF CONFORMITY
3COM END U
TATEMENT
SER SOFTWARE LICENSE AGREEMENT
v
IGURES
F
1-1
3C905B-TX NIC 1-1
1-2
3C905B-TX NIC Installation Steps 1-4
2-1
Inserting the NIC 2-2
2-2
Connecting the Network Cable to the RJ-45 Port 2-3
2-3
Connecting the NIC to the Connector 2-4
4-1
LEDs 4-2
4-2
3Com NIC Diagnostics Program General Screen 4-4
4-3
Diagnostics Screen 4-5
4-4
3Com NIC Diagnostics Program Support Screen 4-7
4-5
Problem Report Main Screen 4-9
4-6
Computer Information Screen 4-9
4-7
Straight-through and Crossover Cable Pinouts 4-13
5-1
3Com NIC Diagnostics Program General Screen 5-3
5-2
3Com NIC Diagnostics Properties Screen 5-3
A-1
RJ-45 Connector Pin Assignments A-2
vii
ABLES
T
1
Notice Icons 2
2
Text Conventions 2
3-1
Network Driver Text File Names 3-12
4-1
LED Descriptions 4-2
4-2
Frequently Asked Questions 4-15
5-1
Option Settings 5-1
viii
Lifetime Limited
Warranty
3Com’s EtherLink®, Fast EtherLink, TokenLink®,
TokenLink Velocity®, ATMLink™ PCI, and
FDDILink™ network interface cards have a
Lifetime Limited Warranty. For further details,
please see 3Com’s Limited Warranty statement
in this guide.
To ensure the very best 3Com service and support,
take the time to complete the product registration
card.
Customers in the countries or regions shown below should send the
completed registration card to the appropriate address. Customers in
other non-U.S. locations should send the registration card to the U.S.
address on the front of the card.
■
Asia
3Com Asia Ltd., Marketing Department
Room 2506-07, 25/F.
Citibank Tower
Citibank Plaza, Central
Hong Kong
■
Australia, New Zealand
3Com Australia, Marketing Department
99 Walker Street
Level 7
North Sydney
New South Wales 2060
Australia
3Com France, Marketing Department
Immeuble McKinley
BP 965
1, Avenue de l’Atlantique
91976 Les Ulis Courtaboeuf Cedex
France
■
Japan
3Com Japan, Marketing Department
Shinjuku Sumitomo Building 23F
2-6-1 Nishi Shinjuku, Shinjuku-ku
Tokyo 163-02
Japan
■
Sweden, Finland, Norway,
Denmark
3Com Nordic, Marketing Department
Torshamsgatan 39
Box 1110
164 22 KISTA
Sweden
■
United Kingdom, Eire
3Com UK Ltd., Marketing Department
Pacific House
Third Avenue
Globe Park Marlow-on-Thames
Buckinghamshire, SL7 1YL
England
■
Germany, Austria, Switzerland
3Com GmbH, Marketing Department
Gustav-Heinemann-Ring 123
D-81739 Muenchen
Munich
West Germany
■
Italy, Greece, Spain, Portugal, Malta
3Com Mediterraneo Srl,
Marketing Department
Via Michelangelo Buonarroti, 1
20093 Cologno Monzese MI
Italy
BOUT THIS
A
About This Guide provides an overview of this guide,
describes guide conventions, and tells you where to look
for specific information.
This guide describes how to install, configure, and
troubleshoot the 3Com® Fast EtherLink® XL PCI
10/100BASE-TX network interface card (NIC). This NIC is
called the 3C905B-TX NIC in this guide.
If the information in the README.TXT file on the
EtherDisk® diskette shipped with your product differs from
the information in this guide, follow the instructions in the
README.TXT file.
G
UIDE
Finding Specific Information in This Guide
This table shows where to find specific information in this
guide.
If you are looking forTurn to
NIC features and PC and server requirementsChapter 1
Installation and cabling informationChapter 2
Network driver installation instructionsChapter 3
TroubleshootingChapter 4
Instructions for changing configuration settingsChapter 5
Specifications and RJ-45 pin assignmentsAppendix A
Technical supportAppendix B
2ABOUT THIS GUIDE
Conventions
Table 1 and Table 2 list conventions that are used
throughout this guide.
Table 1 Notice Icons
IconNotice TypeDescription
Information noteImportant features or instructions
CautionInformation to alert you to potential damage to a
WarningInformation to alert you to potential personal injury
Table 2 Text Conventions
ConventionDescription
CommandsThe word “command” means you must enter the
Screen displaysThis typeface represents information as it appears on the
The words “enter”
and “type”
Menu commands and
buttons
Words in italicized
type
Words in bold-face
type
program, system, or device
command exactly as shown in text and press the Return or
Enter key. Example:
To launch the DOS diagnostics, enter the following
command:
a: install
screen.
When you see the word “enter” in this guide, you must
type something, and then press the Return or Enter key.
Do not press the Return or Enter key when an instruction
simply says “type.”
Menu commands or button names appear in italics.
Example:
From the Help menu, select Contents.
Italics emphasize a point or denote new terms at the place
where they are defined in the text.
Bold text denotes key features.
1
INTRODUCTION
The 3Com® 3C905B-TX network interface card (NIC)
provides a high-performance connection to an Ethernet or
Fast Ethernet network. This NIC operates at 100 Mbps or
10 Mbps automatically, depending on the speed of the
connected hub.
TX
DATA
ACT
10
L
N
100
K
Figure 1-1 3C905B-TX NIC
There are two types of 3C905B-TX NICs: the 3C905B-TX NIC
and the 3C905B-TX-NM NIC.
The 3Com Remote Wake-Up NIC (3C905B-TX), shown in
Figure 1-1, operates as a wake-up NIC only in PCs with the
Remote Wake-Up connector attached to the PC
motherboard. This NIC provides a network connection with
or without the Remote Wake-Up connector installed.
The 3C905B-TX-NM NIC does not have the Remote Wake-Up
connector or functionality.
1-2CHAPTER 1: INTRODUCTION
Unless specifically indicated, the name 3C905B-TX is used
throughout this guide to refer to both NICs.
This chapter describes the 3C905B-TX NIC features and PC
and server requirements.
Industry-Leading Performance
The 3C905B-TX NIC provides the following performance
features:
■ Interactive Access technology to minimize CPU utilization
■ Parallel Tasking
low processor utilization
■ Full-duplex 10 Mbps and 100 Mbps support
■ Hardware IP checksum enabled for better Internet and
intranet performance
■ Fast IP switching solution that allows you to
cost-effectively scale internetwork performance as
bandwidth requirements increase
■ 32-bit bus master design with full scatter gather and
infinite bursting performance
■ Flow control (IEEE 802.1x), which optimizes performance
in switched networks through efficient data transmissions
®
II architecture for high throughput and
DynamicAccess Software
DynamicAccess™ software delivers intelligence at the edge of
the network to optimize network performance and control.
DynamicAccess features include PACE™ Interactive Access
technology, dRMON (distributed RMON) support, and
support for PACE real-time and multimedia applications.
PACE class of service drivers enable prioritization of
multimedia and business-critical applications like video
conferencing and distance learning. With the 3Com PACE
drivers, you can set the class of service for each application.
The 3C905B-TX NIC ships with dRMON SmartAgent®
intelligent agents that collect remote management
information used by the Transcend® Edge Monitor System.
Together, they provide full RMON network management
information for both switched and Fast Ethernet networks.
Remote Wake-up
Remote Wake-Up support is enabled for the 3C905B-TX NIC.
If you are using the 3C905B-TX NIC in a PC that supports
Remote Wake-Up through the PCI bus, the 3Com NIC
receives wake-up signals and wakes the PC from a sleep state.
Installation and Configuration
The 3Com NIC Diagnostics program allows you to test
the 3C905B-TX NIC, configure it, and display the NIC
configuration information. If you are running DOS, you
cannot use this program.
The NIC Diagnostics Help system includes the 3C905B-TX
Release Notes, Frequently Asked Questions, and
KnowledgeBase.
Microsoft Windows 95 detects the 3C905B-TX NIC and
installs the network driver from 3Com EtherDisk Diskette #2.
The AutoLink™ installation software automatically installs
all Novell NetWare DOS ODI client software into your
operating system.
Remote Wake-up1-3
10/100 Mbps Support
The single RJ-45 connector on the network cable supports
10 Mbps or 100 Mbps speeds.
NWay auto-negotiation enables the 3C905B-TX NIC to
automatically run at the speed that the connected hub
supports. The 3C905B-TX NIC works with products that
comply with IEEE 10BASE-T and 100BASE-TX specifications.
PC and Server Requirements
Your PC or server must have:
■ An 80386, 80486, Pentium, or Alpha processor
Alpha processors or drivers work only with
Windows NT 4.0
■ An available bus mastering PCI slot
■ A minimum of 640K of memory
1-4CHAPTER 1: INTRODUCTION
Make sure that you are running the latest BIOS for your PC or
server , even if your PC is new. Contact your PC manufacturer
for more information.
How Do I Install the 3C905B-TX NIC?
To complete installation, install the NIC in your PC or server,
connect it to the network, and install the network driver.
The installations steps are depicted in Figure 1-2.
Insert
3C905B-TX NIC
Connect NIC
to network
Which
driver installation
instructions
should I use
?
I do know
Install 3Com
network driver
Reboot
Log on
to network
Chapter 2
Chapter 2
I don't know
Chapter 3
Chapter 3
Ask
MIS department
Chapter 3
Figure 1-2 3C905B-TX NIC Installation Steps
Proceed to Chapter 2 to install the 3C905B-TX NIC in your
PC or server and connect it to the network.
INSTALLINGTHE NIC
2
There are two types of 3C905B-TX NICs: the 3C905B-TX NIC
and the 3C905B-TX-NM NIC. They are both installed in your
PC and connected to the network in exactly the same way.
After you connect the 3C905B-TX NIC to the network, you
connect the Remote Wake-Up cable to the motherboard.
Before you begin, make sure that you also have the user
guide and the 3C905B-TX EtherDisk diskettes, and that
your PC meets the requirements described in Chapter 1.
CAUTION: Each NIC is packed in an antistatic container to
protect it during shipment. Before handling the NIC, touch
the metal chassis of your PC. Maintain grounding by wearing
a wrist strap attached to the chassis. Handle the NIC by its
backplate and top edge. Do not touch the edge connector.
To install the 3C905B-TX NIC in your PC or server and
connect it to the network, follow these steps:
1 Open the shipping container and inspect each item
for damage.
2 Remove all jewelry from your hands and wrists.
Use only insulated or nonconductive tools.
3 Unplug the PC and disconnect all cables.
4 Remove the PC cover.
5 Choose an empty bus mastering PCI slot.
A sample PCI slot is shown in Figure 2-1. If you do not know
how to identify a PCI slot, check your PC documentation or
ask your system administrator . In most PCs, slots 1 and 2 ar e
bus mastering slots. Use slot 1 for the 3C905B-TX NIC if
possible. If you have a video PCI card, install it in the last slot
(the one farthest from slot 1).
6 Unscrew the screw holding the PCI slot’s backplate
and remove it.
2-2CHAPTER 2: INSTALLINGTHE NIC
7 Insert the 3C905B-TX NIC into an empty PCI slot,
shown in Figure 2-1.
Make sure that the NIC is firmly seated in the slot.
Screw
3C905B-TX NIC
PCI slot
Figure 2-1 Inserting the NIC
8 Secure the NIC with the screw you removed earlier.
If you are installing the Remote Wake-Up connector, go to
“Connecting the Remote Wake-up Cable” at the end of
the chapter before replacing the PC cover.
9 Replace the PC cover and reconnect all previously
connected cables.
10 Turn on the power to the PC.
11 Proceed to the next section, “Connecting to the
Network.”
Connecting to the Network
You must connect the NIC to the network before installing
the network driver. To connect the 3C905B-TX NIC to the
network cable, follow these steps:
1 Connect the network cable to the RJ-45 port on the
3C905B-TX NIC, as shown in Figure 2-2.
Connecting to the Network2-3
TX
Data
ACT
L
10
N
K
100
RJ-45 port
RJ-45
connector
LEDs
Figure 2-2 Connecting the Network Cable to the RJ-45 Port
2 Connect the other end of the network cable to a
10BASE-T or a 100BASE-TX network port.
3 Check the LEDs, shown in Figure 2-2.
After installation, and before you install the network driver,
the LEDs indicate the following:
■ 10 LNK LED - green - 10 Mbps link integrity
■ 100 LNK - green - 100 Mbps link integrity
■ ACT LED - OFF - until the network driver is installed
See Table 4-1 for more LED information. If you are not
installing the Remote Wake-Up cable, go to Chapter 3 to
install the network driver.
2-4CHAPTER 2: INSTALLINGTHE NIC
Connecting the Remote Wake-up Cable
WARNING: Install the NIC in slot 1 in the PC (as described
earlier) before plugging in the 3-pin connector . Only properly
trained and authorized personnel should perform service.
Contact your PC manufacturer for information about safe
service techniques.
1 Insert the cable into the connector on the NIC, shown
in Figure 2-3.
Twist the cable twice before attaching the cable to the
motherboard.
2 Attach the cable to the connector on the PC
motherboard, as shown in Figure 2-3.
The connector is located in different locations depending
on the PC.
Power
supply
Connect Remote Wake-Up
cable from NIC to motherboard connector
Plug in Remote Wake-Up
cable to connector here
Figure 2-3 Connecting the NIC to the Connector
3 Reconnect all cables and replace the PC cover.
The 3C905B-TX Remote Wake-Up NIC is installed. Go back
to the previous section “Connecting to the Network” to
complete installation.
INSTALLINGTHE
3
NETWORK DRIVER
This chapter describes how to install the network driver
that completes your PC connection to the network. The
3C905B-TX software is installed with the network driver.
Instructions are provided for Windows 95, Windows NT,
and NetWare DOS client and server driver installation.
Table 3-1 provides a complete list of supported drivers and
text files that describe how to install them.
Go to the section your MIS department recommends and
follow the instructions to install the network driver on
your PC.
You can obtain the latest network drivers on 3Com’s
World Wide Web site. To access the Web site, enter the
3Com URL into your Internet browser: