When moving blades between different chassis, you may need to reload the driver for the IPoIB network device for Windows 2003 OS installations.
In Windows Device Manager window, double-click the device you want to update.
Click the Driver tab.
Click the Update Driver to open the Hardware Update Wizard.
The Hardware Update Wizard appears.
In the Hardware Update Wizard, do the following
Select "NO" not at this time and click Next.
Select "Install the Software Automatically" and click Next.
Windows will reload the driver currently on the system and initialize the device.
For additional information about configuring network settings in Windows Server 2003 operating systems, consult th Microsoft Windows Server 2003 documentation, at http://www.microsoft.com/en/us/default.aspx