                        3Com (R) Corporation
                   EtherDisk (R) Diskette for the
     3C90X Fast EtherLink XL/EtherLink XL Bus Master NIC Family
          Installing the NDIS 3/4 Driver for Windows NT

For increased performance or running on non-intel based systems read 
the Advanced Installation Options section at the end of this file.

Windows NT 4.0 Installation Instructions
----------------------------------------
The following steps describe how to install your 3Com network NIC in a
computer running Windows NT 4.0. 

1.  Start Windows NT.

2.  In the Control panel, double-click the Network icon.

3.  Click the Adapters tab in the Network Control Panel.

Note:  If Networking has not been installed in your system before, 
       when you open the Network icon, Windows NT will ask 
       you if you want to install networking.  Click Yes and refer 
       to the Windows NT Documentation for instructions.

4.  Click the Add... button.

5.  In the Select Network Adapter window, Click Have Disk.

6.  Insert the EtherDisk 2 diskette into drive A: and type:
    A:\ [Enter].

7.  In the Select OEM Option box, select one of the following: 
    
    3Com EtherLink XL NIC (3C900) for the 10 Mbps NIC
    3Com Fast EtherLink XL NIC (3C905) for the 10/100 Mbps NIC

8.  Click the OK button.

9.  Click Close in the Welcome screen that appears.  Go to the
    Protocol and Services tab to modify any protocols and services.

10. In the Network window, click Close.

    If you are prompted for network information, contact your system     
    administrator for information unique to your network.

11. In the Network Settings Change window, click Yes to restart 
    your computer.  Remove any floppy disks from your system.
        

Windows NT 3.51 Installation Instructions
-----------------------------------------
The following steps describe how to install your 3Com network NIC in a
computer running Windows NT 3.51. 

1.  Start Windows NT.

2.  In the Control panel, double-click the Network icon.

3.  If an existing 3C90x NIC is installed, it's driver should be
    removed.  In the Network Settings window, select the existing
    3Com driver in the Installed Adapters group.

4.  Click Remove.

5.  Click Yes in the Network Settings dialog box.

6.  In the Network Settings window, click Add Adapter.

7.  In the Add Adapter window, press and hold the down arrow until
    <Other> Requires Disk from Manufacturer appears.

    NOTE: This requires the 3Com EtherDisk diskette #2.     

8.  Click Continue.

9.  Insert the EtherDisk diskette #2 into drive A: and type:
    A:\ [Enter].

10. In the Select OEM Option box, select one of the following: 
    
    3Com EtherLink XL NIC (3C900) for the 10 Mbps NIC
    3Com Fast EtherLink XL NIC (3C905) for the 10/100 Mbps NIC

11. Click the OK button.

12. Click Close in the Welcome screen that appears.

13. In the Network Settings window, click OK.

    If you are prompted for network information, contact your system     
    administrator for information unique to your network.

14. In the Network Settings Change window, click Restart to restart 
    your computer.  Remove any floppy disks from your system.
                                                

Troubleshooting 
---------------
If  a message appears, stating that Windows NT networking is not installed, 
either it has not been installed or a problem has occurred in changing the 
network settings.  If you have never installed networking on this system, 
proceed to the next section, "Installing Windows NT Networking for the 
First Time." Otherwise, follow the steps here to reinstall Windows NT 
networking.

    Reinstalling Windows NT Networking
    ----------------------------------
    NOTE:  This procedure requires Windows NT installation media.

    WARNING:  You will lose all network settings when you perform this 
              procedure.  Record any information that you will need
              later.
    
    1.  Click No when asked if you wish to install networking.
    
    2.  In the Network Settings window, select each installed component 
        one after the other, and click Remove after each one to uninstall 
        all NICs and software listed in the window.
    
    3.  Click OK after you have removed all items.
    
    4.  When asked if you want to reboot, click Restart Now.
    
    5.  When Windows NT restarts, go to the Network Control Panel.
    
        You will  be asked again if you want to install networking.
    
    6.  In the Network Settings box, click Yes to begin installing 
        Windows NT networking.
    
    7.  Enter the location of the Windows NT installation media.  For 
        example, if your CD-ROM drive is E:, type:
    
        E: \i386
    
    8.  In the NIC Card Detection window, click Do Not Detect.  
    
    9.  In the Add Network NIC window, press and hold the down arrow key 
        until the option <Other> Requires Disk from Manufacturer appears.
    
    10. Insert the EtherDisk 2 diskette into drive A: and type:
    
        A: \ [Enter]
    
    11. In the Select OEM Option box, select one of the following:
    
        3Com EtherLink XL NIC (3C900) for the 10 Mbps NIC
        3Com Fast EtherLink XL NIC (3C905) for the 10/100 Mbps NIC
    
    12. Click the OK button.
    
    13. Select the network protocols you will be using on the network and 
        then click Continue.
    
        Consult your system administrator to find out which protocols to 
        select.
    
    14. Click OK in the Network Settings window to accept the choices you 
        have made.
     
    15. Provide additional information, as required, during the network 
        installation process.
    
        Your computer can auto detect the frame type if needed, but you 
        must obtain IP address and gateway information from your system 
        administrator, if you are using TCP/IP.
        
    16. Enter the workgroup name or the domain name in the Domain/Workgroup 
        Settings window and click OK.
    
    17. When prompted, press the Restart button on your computer to finish 
        the installation.
    
    
    Installing Windows NT Networking for the First Time
    ---------------------------------------------------
    If you have never installed networking on this computer, follow these 
    steps:
    
    1.  In the Network Settings box, click Yes to begin installing 
        Windows NT networking.
    
    2.  Enter the location of the Windows NT installation disks.  
        For example, if your CD-ROM drive is E:, type:
    
        E: \i386
    
    3.  In the NIC Card Detection window, click Do Not Detect.  
    
    4.  In the Add Network NIC window, press and hold the down arrow key 
        until the option <Other> Requires Disk from Manufacturer appears.
    
    5.  Insert the EtherDisk 2 diskette into drive A: and type:
    
        A: \ [Enter]
    
    6.  In the Select OEM Option box, select one of the following:
    
        3Com EtherLink XL NIC (3C900) for the 10 Mbps NIC
        3Com Fast EtherLink XL NIC (3C905) for the 10/100 Mbps NIC
    
    7.  Click the OK button.
    
    8.  Select the network protocols you will be using on the network and 
        then click Continue.
    
        Consult your system administrator to find out which protocols to 
        select.
    
    9.  Click OK in the Network Settings window to accept the choices you 
        have made.
    
    10. Provide additional information, as required,  during the network 
        installation process.
    
        Your computer can auto detect the frame type if needed, but you 
        must obtain IP address and gateway information from your system 
        administrator, if you are using TCP/IP.
    
    11. Enter the workgroup name or the domain name in the Domain/Workgroup 
        Settings window and click OK.
    
    12. When prompted, press the Restart button on your computer to finish 
        the installation.
    
    
ADVANCED INTALLATION OPTIONS
----------------------------

    Running Windows NT on a Non-Intel Processor
    -----------------------------------------

    If your system cannot run the DOS-based Configuration and Diagnostic 
    program, you may need to set the speed and duplex level of the NIC in 
    the Windows NT registry.  The speed and duplex value of the NIC can be 
    set manualy by using the MEDIA keyword.  To set the MEDIA keyword, add 
    the key MEDIA to the registry in the subkey:    
                    
    \\HKEY_lOCAL_NACHINE\SYSTEM\CurrentControlSet\Services\El90x?\Parameters

    NOTE: Multiple subkeys that look like El90x appear right next to 
          each other.  The correct one has a digit in place of the ? 
          in the above expression to represent which NIC it is.  The 
          incorrect one simply reads El90x.


    The value for the MEDIA keyword should be one from the list below.  The 
    default is NotPresent.  
 
        MEDIA   10HALF     <-- 10 Mbs with half duplex
        MEDIA   10FULL     <-- 10 Mbs with full duplex
        MEDIA   100HALF    <-- 100 Mbs with half duplex
        MEDIA   100FULL    <-- 100 Mbs with full duplex
        MEDIA   AUTO       <-- Driver performs auto configuration
        MEDIA   NotPresent <-- Use settings on EPROM

   (%VER WINNT.TXT - Installing the NDIS 3.0 Driver for Windows NT V1.0h)
