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Broadcom Ethernet NIC NetXtreme II Driver Downloads

Below you will find the latest drivers for Broadcom's NetXtreme II Ethernet controllers:
5706, 5708, 5709

Previous driver versions can be found on our archive page.

IMPORTANT: PLEASE READ BELOW
Due to the advanced software architecture of the NetXtreme II adapter, the installation/uninstallation of drivers is only supported through a driver installer. Manually installing/uninstalling the drivers through the Device Manager is not recommended.

To ensure a more seamless upgrade, please attempt to update the drivers for the NetXtreme II adapter through the drivers provided by the manufacturer of the system containing this device.

NetXtreme II Drivers
Version  Date Size 
11.32.05  08/04/08  Download Zip File
15MB 
11.32.05  08/04/08  Download Zip File
15MB 
11.32.05  08/04/08  Download Zip File
15MB 
11.32.05  08/04/08  Download Zip File
15MB 
11.32.05  08/04/08  Download Zip File
15MB 
11.32.05  08/04/08  Download Zip File
15MB 
11.32.05  08/04/08  Download Zip File
15MB 
11.32.05  08/04/08  Download Zip File
15MB 
1.7.6b  08/04/08  Download Zip File
5MB 
4.4.4  08/04/08  Download Zip File
23KB 
4.4.4  08/04/08  Download Zip File
60KB 
4.41  08/04/08  Download Zip File
148KB 
4.4.3  08/04/08  Download Zip File
2MB 
3.5.11  04/18/08  Download Zip File
2MB 
4.4.2  08/04/08  Download Zip File
174KB 
4.4.1  08/12/08  Download Zip File
196KB 
Windows Remote Installation Service (RIS) Drivers

IMPORTANT: PLEASE READ BELOW
Due to limitations in Microsoft's operating systems not supporting the Virtual Bus Device architecture of the NetXtreme II adapter under certain circumstances, separate drivers were created to address these limitations. The NetXtreme II monolithic "RIS" driver allows the adapter to behave similarly to standard network adapters and only provides network connectivity without the advanced offerings of the device. The monolithic driver should be used for connectivity during the text mode portion of a RIS installation (by placing in the I386 or AMD64 platform directory), in a Windows Preinstallation Environment (Windows PE), and for the agent used for Microsoft's Automated Deployment Services (ADS).

Version  Date Size 
4.4.0  08/04/08  Download Zip File
164KB 
4.4.0  08/04/08  Download Zip File
166KB 
4.4.0  08/04/08  Download Zip File
170KB 
  09/26/06  Download Text File
3KB 
Windows Management Applications
Version  Date Size 
11.60.11  08/04/08  Download Zip File
23MB 
11.60.11  08/04/08  Download Zip File
23MB 
DOS Diagnostic Utilities

How to run User Diagnostic for a BCM5706/08 NetXtreme_II Device:

  1. Create a bootable CD using the xdiag ISO file
  2. Boot to DOS using this CD
  3. Choose option one on the FreeDOS 1.0 Final Cut CD menu
  4. Choose option "Install to HD using FD setup
  5. Run FreeDOS from CD ROM (return to command prompt)
  6. cd to b57diag and run b57udiag

Version  Date Size 
3.7.6  11/09/07  Download ISO image
9MB 

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