Microsoft Windows NT 4.0, 2000, and 2003 Drivers Software Update for IBM NetXtreme 
Gigabit Ethernet Adapters
==================================================================================

This package provides the latest v7.44 b57nt4.sys, b57w2k.sys, b57xp32.sys, and
b57xp64.sys drivers for Microsoft Windows NT 4.0, 2000, and 2003 32-bit and 64-bit
for IBM NetXtreme Gigabit Ethernet Adapters family.

This release supports ia386, ia32, and ia64 CPU platforms.


CONTENTS
--------

1.0   Overview
      1.1   Limitations
2.0   Drivers Version
3.0   Build and Installation Instructions
4.0   Configuration Information
      4.1 Driver Parameters
      4.2 Additional Configuration Information
5.0   IBM Web Support
6.0   Trademarks and Notices
7.0   License and Disclaimer


1.0  Overview
_____________

This package provides the b57nt4.sys, b57w2k.sys, b57xp32.sys, and b57xp64.sys 
drivers version 7.44 as device drivers update to all recent drivers versions 
7.33, 7.40, 7.42, and  7.43 from the 7.0.5 software CD release and follow-up
releases for IBM NetXtreme Gigabit Ethernet Adapters family.

The following adapters are supported:

NetXtreme 1000 Fiber SX Ethernet Adapter       22P7801 ( FRU 22P7809 )

NetXtreme 1000 T Ethernet Adapter              31P6301 ( FRU 31P6309 )

NetXtreme 1000 T Dual Port Ethernet Adapter    31P6401 ( FRU 31P6409 )

For adapters teaming, BASP 6.09 should be used.

The adapter firmware level should be at the latest released level.
Refer to b570x-fw.exe for the latest firmware update release.


1.1   Limitations
-----------------

This release is for options PNs 31P6401, 31P6301, and 22P7801.


2.0   Drivers version
_____________________


b57nt4.sys           v7.44

b57w2k.sys           v7.44

b57xp32.sys          v7.44

b57xp64.sys          v7.44


Key updates with v7.44 release:

Enhancements added to support xSeries systems with more than 4GB RAM.

With previous drivers, Broadcom ethernet has problem transmitting
data with systems with more than 4GB RAM.

Enhancements added to the driver link timer and autonegotiation 
mechanism to prevent the adapter from intermittently dropping 
from network connection during a system reboot or during an
adapter disable / enable event.

Proper programming of GPIO2 to not allow the adapter to draw power
from VAux during device initialization, to prevent the adapter from
being removed from the PCI Bus.

For more change details, read the release.txt file that comes with
each driver, in this package.


3.0   Build and Installation Instructions
_________________________________________

Refer to the guide and help files that come with the 7.0.5 CD.

It is strongly recommended that end users do a complete uninstall
of the previous drivers sw and reinstall of the new 7.44 drivers
sw, instead of doing a driver update.


4.0   Configuration Information
_______________________________

Refer to 3.0 above.


4.1 Driver Parameters
---------------------

Refer to 3.0 above.


4.2 Additional Configuration Information
----------------------------------------

Refer to 3.0 above.


5.0   IBM Web Support
_____________________

IBM Support Web Site:
   
   http://www-3.ibm.com/pc/support/site.wss/



6.0   Trademarks and Notices
____________________________


The following terms are trademarks of the IBM Corporation in the
United States or other countries or both:

IBM
eServer xSeries

Broadcom and NetXtreme are registered trademarks of Broadcom Corporation.

Other company, product, and service names may be trademarks or service
marks of others.


7.0  License and Disclaimer
___________________________

This software is provided by Broadcom to IBM for redistribution under
IBM/Broadcom agreement for IBM Broadcom 570x-based Ethernet products.