   1 Windows NT 3.51
                                                                    v1.03


Windows NT* 3.51 Installation Notes for the Intel EtherExpress(TM) 
PRO/100+ PCI LAN Adapter
=========================================================================

LOCATION OF DRIVER:    \NT\E100B.SY_ (NDIS 3 compressed)
                       \OEMSETUP.INF


General instructions
--------------------

After putting the adapter in the computer, you need to configure it
under Windows NT.

1  Double-click the Network icon in the Control Panel.

2  Click the Add Adapter button.

3  Do NOT select an Intel adapter from the list. Instead, scroll to the
   end of the list and select:
      
      <Other> Requires disk from manufacturer.

4  Click the Continue button.

5  Insert the Configuration and Drivers Disk into your floppy drive
   and click OK.

6  Select "Intel EtherExpress PRO/100+ PCI Adapter (TX or T4)" and click
   OK.

7  The PROSet Setup utility automatically scans computer resources
   and determines the settings assigned to your adapter.  It also adds an
   PROSet icon to the Control Panel for future use of PROSet.

8  Click the Test button in the PROSet utility to run diagnostics.

   If you've just added the adapter, the network driver won't be active
   and the diagnostics will test the adapter and its connection to the
   network. If you're testing an adapter that's already been installed,
   the network driver will probably be active and the diagnostics will
   test the driver. This diagnostic tracks the driver's actual network
   activity.

9  Click OK to exit the test screen and return to the PROSet main menu.

10 Click OK to accept the adapter's configuration and exit PROSet.

11 Click OK in the Network Settings dialog.  Other configuration screens
   may appear. Configure as desired. When prompted, restart Windows NT.
      
      Note: The NDIS 3 miniport driver will automatically get installed
            in Windows NT 3.51.

12 Repeat the these steps for installing additional adapters.


                                    
Adapter settings
----------------

There are two ways to run PROSet, which allows changing the adapter
settings.
   
   -  From the Control Panel double click the PROSet icon.
   
   -  From the Network Settings screen highlight the PRO/100+ adapter 
      and click Configure.

   From the main PROSet menu click the Change button to get to the
   Adapter Settings screen. The defaults work correctly for most
   configurations.


Network speed
-------------
   
   Recommended setting:  Auto (default)

      This parameter lets the PRO/100+ adapter know what speed to use 
      on the Ethernet wire.  The choices are 10 Mbps, 100 Mbps, and Auto.
      In Auto mode, the adapter detects if its environment can support 
      100 Mbps speed. It then sets the speed to 100 if it can, or 10 if 
      it can't. If you are using a crossover cable connected to another 
      adapter, set the speed to either 10 Mbps or 100 Mbps. 
      
      Note: If the Duplex Mode is not set to Auto, then set the speed to
            either 10 Mbps or 100 Mbps.




Duplex mode
-----------
   
   Recommended setting: Auto (PRO/100+ TX adapter only)

         Auto:  The adapter negotiates with the hub how to send/receive
         packets, either full or half duplex.

         Full duplex:  The adapter sends and receives packets at the same
         time. This improves the performance of your adapter. Set duplex
         mode to full duplex only if you have a full duplex switch.

         Half duplex:  The adapter performs one operation at a time. It
         either sends or receives.

      A regular adapter can perform only one operation at a time (half-
      duplexing). The PRO/100+ adapter has the ability to send and
      receive packets at the same time (full-duplexing) at both 10 and
      100 Mbps. In order to reap the benefits of full duplexing, you MUST
      have a full duplex switch or hub.

      The PRO/100+ adapter has the added ability to "talk" to the switch
      or hub and determine at which mode to communicate (either full or 
      half duplex). This is called auto-negotiation. You must have an 
      auto-negotiating switch to get full duplex support with the Duplex 
      Mode set to Auto. If you don't have an auto-negotiating switch or 
      hub and want to run at full duplex, set Duplex Mode to Full and 
      then set the SPEED parameter to either 100 Mbps or 10 Mbps.
      
      Note: If you set duplex to Full, and leave Speed at Auto, the
            adapter will run at 10 Mbps.



2  Click the Advanced button in the Adapter Settings screen to change the
   advanced settings.
      
      Note: The defaults work correctly for most configurations. Please
            use caution when changing these parameters. Use the online
            help for additional information.


Coalesce buffers
----------------
   
   Recommended setting:  8


Receive buffers
---------------
   
   Recommended setting:  16


Transmit control blocks
-----------------------
   
   Recommended setting:  16
   
   
Adaptive transmit threshold
---------------------------

Recommended setting:  On


This parameter dynamically optimizes the point at which early transmit
cycles will be executed.  This results in higher performance but may
generate an occasional underrun. To eliminate underruns, set it to OFF.


Adaptive Technology
-------------------

Recommended setting:  On

Adaptive Technology customizes the PRO/100+ adapter to the respective
operating system by downloading microcode to the silicon.  This improves
performance and minimizes CPU utilization.


Map registers
-------------
   
   Recommended settings:
      PCI:    MapRegisters = 8 (default for NT 3.5)
      PCI:    MapRegisters = 64 (default for NT 3.51 or later)
      



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