Due to the advanced software architecture of the NetXtreme II 1 Gigabit 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 1 Gigabit adapter through the drivers provided by the manufacturer of the system containing this device.
This driver offers support for the following chipsets:
Here's other similar drivers that are different versions or releases for different operating systems: