3Com Corporation
3Com Megahertz 10/100 LAN CardBus PC Card (3CCFE575BT)
Readme.txt File
Please read this file before installing the PC Card.
This file is divided into three sections:
General Information - Read for all network operating systems
Known Compatibility Issues
Frequently Asked Questions
Important General Information
1. Make sure to use the latest BIOS available for your PC.
Contact the PC manufacturer for more information.
2. Close down the PC Card Diagnostics before removing
the PC Card, rebooting the PC, or shutting down the PC.
Known Compatibility Issues
The 3Com DOS Diagnostic and Configuration program runs
in DOS-mode only. If you are running Windows 95 or Windows NT,
please use the 3Com PC Card Diagnostic program, which is
installed in your SYSTEM directory from the LAN Installation Disk
when you install the network driver.
Running the DOS ODI Driver with a Non-Novell Protocol
Add the keyword NO_PIPELINE to your NET.CFG
file when running the DOS ODI driver with a
non-Novell protocol in a DOS environment.
To add NO_PIPELINE to your NET.CFG file:
1 Access the C:\NWCLIENT directory and open the
NET.CFG file. Type:
EDIT NET.CFG [Enter]
2 Scroll through the file to the LINK DRIVER
section and locate the following line:
LINK DRIVER
3 Add NO_PIPELINE after LINK DRIVER .
Your file should now look like this:
LINK DRIVER
NO_PIPELINE
Frequently Asked Questions
What interrupts should I use on my PC?
This table displays the interrupts that
can be used with the following PCs.
Try these interrupts first.
These interrupts should work if an installed device
is not using these interrupts.
Dell - Latitude XPiCD 9,10,11
Fujitsu - Lifebook 635T 7, 9
HP- 2000CT 11
HP - Omnibook 800CS 3, 4, 7, 9, 10, 12, 14
HP - Omnibook 5700CT 0xA, 0xB, 0x3,0x4
IBM - 760EL ... 5, 10
IBM 760E 9, 10
IBM 760ED 9, 10
NEC - 6000H 5, 9
NEC 6010H 5, 9, 11
NEC 6030H 9
NEC - 6030X 5, 9
TI - Extensa 600CD 5, 9, 10, 11
TI - Extensa 650CD 9, 10
TI - Extensa 900CD 9, 10
Toshiba - Tecra 500CDT 9, 10
Toshiba Tecra 510CDT 11 If using OSR2, request a patch from Toshiba.
Toshiba - Tecra 650CT 11
Toshiba - Tecra 660 11
Toshiba - Tecra 720CDT 11
Toshiba - Tecra 730CDT 9, 10
Toshiba - Dock Station 11
Can I use my PC Card with another PC Card when
I am running Windows NT 4.0?
When you load Windows NT Service Pack 3 from Microsoft,
you can use the PC Card with another PC Card.
For more information about using this PC Card
with a modem PC Card, see the next topic.
When I am running Windows NT 4.0 and using a
16-bit PC Card modem, can I use the CardBus PC Card?
Yes, if you follow these steps:
1 After you install the PC Card and network driver, reboot your PC.
2 Click Devices in the Control Panel.
3 Highlight PCMCIA.
4 Click Hardware Profiles.
5 Click Enable.
6 Click OK.
7 Click Startup.
8 Click Boot.
9 Click OK.
10 Reboot your PC and both PC Cards will work fine.
Are my 3Com drivers Microsoft certified?
Yes, the PC Card network drivers are Microsoft certified.
How do I remove the 3Com icon from the system tray?
1 Double click the 3Com icon to start the 3Com PC Card
diagnostics program.
2 In the right bottom of the main window, click the
Enable Tray Control check box to remove the check mark.
3 Exit the program and the icon will not appear anymore.
How can I remove the 3Com TNICDIAG software?
1 In the Windows Control Panel, select Add Remove programs.
2 Select 3Com PC Card Diagnostic Utilitities.
3 Click Add/Remove.
The TNICDIAG software (PC Card Diagnostics software)
is removed from your PC.
What is Fast IP?
Fast IP is software that improves performance
on switched networks. Fast IP allows servers to
discover switched communication paths. By creating switched
shortcuts, Fast IP allows end stations to bypass the router
and transfer data across wire-speed switched paths.
What are the PC and network requirements to run Fast IP?
For clients, you should have a PC running Windows 95 or
Windows NT, the 3Com PC Card, and the TCP/IP stack.
The network must have a switched path between stations
and a single broadcast domain.
What is the performance gain using Fast IP?
Since Fast IP bypasses the router to provide
increased performance in switched networks even
if there are just a small number of network nodes
using Fast IP. The performance gain obtained when
deploying Fast IP is directly related to traffic
load on the backbone router. The more traffic
pumped to the router, the greater the latency and
response time and the higher the performance gain.
Internal tests show performance increases on the order
of 600% when routers are loaded at 70 - 75%.
Does the CardBus PC Card support full duplex?
Yes, the CardBus PC Card supports full duplex
at 10 Mbps and 100 Mbps.
Can I remove and reinsert the PC Card?
The CardBus PC Card supports removing and changing the slot
where the CardBus PC Card was installed.
If you change slots, you may be asked to provide an
installation disk again. At that point, you will see
two drivers for the PC Card in the in the Control Panel
Network Configuration window.
If you are not using TCP/IP, or using TCP/IP with DHCP,
no additional steps are required. If you are running
TCP/IP and not using DHCP (you have an assigned IP address
and subnet mask), you need to manually enter these values
for both entries of the PC Card for the PC Card to work.
1 In the Control Panel, double-click Network.
2 Click the Configuration tab.
3 Highlight TCP/IP and click Propeties.
4 Click Specify an IP Address.
5 Enter the assigned IP address and subnet mask.
6 Click OK in the Properties window.
7 Click OK in the Configuration window.
8 Reboot your PC.
If you want to remove the CardBus PC Card from your PC,
you must remove both entries.
1 In the Control Panel, double-click Network.
2 Click the Configuration tab.
3 Highlight the 3Com Megahertz 10/100 LAN CardBus
PC Card entries.
4 Click Remove.
5 Reboot your PC.
KnowledgeBase Topics
Notwithstanding the warranty for the 3Com Software
which is mentioned in both the user guide and the
warranty card accompanying the 3Com products, the
KnowledgeBase is being provided to you "AS IS" without
any warranty of any kind, and 3Com specifically disclaims
any and all warranties or conditions of merchantability
and fitness for a particular purpose. The recommendations
given here have not been subjected to formal testing and
may not provide a solution for you. 3Com does not warrant
that the solutions contained in the KnowledgeBase will meet
your requirements or that the recommended solutions will
work for all configurations.
DOS and Resource Conflicts
To avoid resource conflicts if you are running
in the DOS environment, before you install the driver,
run Auto Config in the DOS diagnostics, save the values,
and then run the self test. This will make sure that your
PC Card is using good values when using the DOS drivers.
Should I disable anti-virus software?
If you are running anti-virus software, disable it.
Some anti-virus software will cause driver installation problems.
NEC 6030H PC
Contact NEC to make sure you have the latest
BIOS before installing the network driver.
Install the PC Card in the bottom slot.
TI 600 CD
To use the CardBus PC Card in the TI 600 CD notebook,
install the CardBus PC Card in the top slot, use
IRQ 9, I/O 3000h, and cold boot the notebook.
If you are using the DOS ODI
add NO_Pipeline to your NET.CFG file.
To add NO_PIPELINE to your NET.CFG file:
1 Access the C:\NWCLIENT directory
and open the NET.CFG file. Type:
EDIT NET.CFG [Enter]
2 Scroll through the file to the LINK DRIVER
section and locate the following line:
LINK DRIVER
3 Add NO_PIPELINE after LINK DRIVER .
Your file should now look like this:
LINK DRIVER
NO_PIPELINE
HP Omnibook 5700CT
To use the CardBus PC Card in this notebook,
use the 3800 I/O port, and any of the following
IRQs when you are using the elpc575.com driver:
0xA, 0xB, 0x3, 0x4.
Digital HiNote VP 575
The CardBus PC Card is not supported by this notebook.
IBM CardBus Notebooks
Use the latest version of cbss.vxd (later than v4.00.1114)
and PCCARD.VXD file for IBM CardBus notebooks.
Contact IBM to get the latest version.
HP Omnibook 2000CT
When running the DOS Configuration program (install.exe),
set the IRQ to 11. If you are running Windows NT 4.0,
use the following resources for this PC:
IRQ=10
I/O Port Address = 3800
Memory = D0000
Dell Latitude CP (M233ST)
When using Windows NT 4.0 on this PC, use
IRQ 10 to allow successful driver installation.
Micron Transport XKE
When using Windows NT 4.0 on this PC, use IRQ 10 to
allow successful driver installation.
IBM 760 EL
Do not use IRQ 9 when you are running Windows NT 4.0
on this notebook. Use Windows NT to check for an available
IRQ other than 9.
TI Extensa 650CD
If you are running DOS on this PC and want to use the
DOS Configuration program, use a memory manager with the
D0000 segment excluded.
For example, device=emm386.exe noems x=d0000-dfff.
NEC 6200MX
If you are running DOS on this PC and want to use the
DOS Configuration program, use IRQ 9 and not 11.
IBM Docking Stations
The following IBM docking station slots do not
support the CardBus PC Card:
IBM ThinkPad Selecta Dock I
IBM ThinkPad Selecta Dock II
Contact IBM for more information.
NEC 6000H
To install the network driver in this PC,
running Windows 95 version 4.00.950A, do not use
the steps in the user guide. Instead, follow these steps:
1 In the Control Panel, click the Network icon.
2 Select Add.
3 Click Adapter.
4 Click Add.
5 Insert the LAN Installation Disk.
6 Click Have Disk.
Follow prompts to complete installation.
If you have resource conflicts,
change the conflicting value to an available value.
Fujitsu Lifebook 585TX and Windows 95 OSR 2
To use the PC Card in this PC running Windows 95 version 4.00.950B,
follow these steps:
1 In the Control Panel, double-click the System icon.
2 Cick the Device Manager tab.
3 Double-click on Universal Serial Bus Controller
at the bottom of the list.
4 Double-click on Intel 82371AB PCI to USB Universal Host Controller.
5 Click on the General tab.
6 Click Disable in this hardware profile.
7 Close the Device Manager and reboot your PC.
8 Install the PC Card and the network driver as
described in the user guide.
Texas Instruments PCs
Most TI PCs prefer a cold boot start.
NEC 6010H
Install the PC Card in the bottom slot in this PC.
Windows NT and the PC Card Diagnostics
If you lose your network connection
after running the PC Card Diagnostics
self test and then shutting down NT while
browsing the network neighborhood,
reboot your PC to regain your network connection.
Gateway 2000 Solo 9100 (CL PD6832)
If you are running Windows NT 4.0, use IRQ 11 for this PC.
Do not use IRQs 9 or 10.
Compaq 7730MT
Use the latest version of cbss.vxd
(later than v4.00.1114) for this PC.
Contact Compaq to get the latest version.
Toshiba Tecra 750T
Use the latest version of cbss.vxd
(later than v4.00.1114) for this PC.
Contact Toshiba to get the latest version.
Toshiba 660CDT
Do not use IRQ 9 when running Windows 95 or Windows NT
with this PC Card.
(%VER README.TXT v2.0)
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.