Topic Last Modified: 2006-04-20

The Microsoft® Exchange Server Analyzer Tool queries the Win32_BIOS Microsoft Windows® Management Instrumentation (WMI) class to determine the value for the SMBIOSBIOSVersion key. The SMBIOSBIOSVersion key value represents the version of the BIOS installed on the server. The Exchange Server Analyzer also queries the Win32_ComputerSystem WMI class to determine the value for the Model key. The Model key value represents the hardware model information as provided by the hardware manufacturer.

If the Exchange Server Analyzer finds that value for the Version key is 42B on a server whose Model key begins with eserver xSeries 445, an error is displayed. This error indicates that this IBM xSeries 445 server's BIOS has to be updated.

There is a known issue with the 42B version of the BIOS firmware that may cause data corruption. The problem is limited to X445 systems that have BIOS 42B (version 1.15) installed. The problem is corrected with BIOS 45A. You should update the BIOS on this server to 45A or later as soon as possible.

To correct this error

  1. For more information about this issue, see the IBM Web site, "Flash BIOS Update (DOS update package) - IBM eServer xSeries 445" (

  2. For information, see the Readme file for the BIOS update (

  3. Download the BIOS update from the IBM Web site (

  4. Update the BIOS on the server.

For more information about applying this critical BIOS update, see the IBM Web site (

Web addresses can change, so you might be unable to connect to the Web site or sites mentioned here.