It seems like Win32_BaseBoard.SerialNumber is what you're looking for.
In python it works with this.
>>> import wmi
>>> a = wmi.WMI()
then it prints...
|CodeGuru Home||VC++ / MFC / C++||.NET / C#||Visual Basic||VB Forums||Developer.com|
Type: Posts; User: loluengo
Search: Search took 0.01 seconds.
Results 1 to 1 of 1
Click Here to Expand Forum to Full Width
This is a CodeGuru survey question.