Microsoft KB Archive/924779

= The Family attribute of the Win32_Processor WMI class returns incorrect values for some processors that run on a Windows Server 2003-based computer =

Article ID: 924779

Article Last Modified on 10/11/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, Datacenter x64 Edition
 * Microsoft Windows Server 2003, Standard x64 Edition
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems

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SYMPTOMS
The Family attribute of the Win32_Processor Windows Management Instrumentation (WMI) class returns incorrect values for some processors that run on a Microsoft Windows Server 2003-based computer. This class returns a value of 0xB9 (185) for the AMD64 Athlon 64 Processor family. The correct value is 0x83 (131).



CAUSE
The current AMD64 Family attribute value for the Win32_Processor class is hard-coded at 0xB9 (185). This value corresponds to the Intel Pentium M processor in the System Management BIOS (SMBIOS) Reference Specification standard.



Service pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100 How to obtain the latest service pack for Windows Server 2003

Prerequisites
You must have Windows Server 2003 Service Pack 1 (SP1) installed to apply this hotfix.

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Server 2003 with SP1, x64-based versions


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Microsoft Windows Server 2003 Service Pack 2.



MORE INFORMATION
This hotfix has corrected the following values to comply with the current SMBIOS Reference Specification standard: 18h (24) AMD Duron Processor Family 19h (25) K5 Family 1Ah (26) K6 Family 1Bh (27) K6-2 1Ch (28) K6-3 1Dh (29) AMD Athlon Processor Family 83h (131) AMD Athlon 64 Processor Family To obtain the SMBIOS Reference Specification, visit the following Distributed Management Task Force (DMTF) Web site:

http://www.dmtf.org/standards/smbios

For more information about the Win32_Processor class, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/aa394373.aspx

The Win32_Processor class does not distinguish among the following AMD families:
 * Athlon
 * Opteron
 * Sempron
 * Turion

After you apply this hotfix, all 64-bit AMD processors are identified by using a Family attribute value of 0x83 (131).

You can use the following Microsoft Visual Basic script to retrieve the Family attribute values of the processors that are installed on a computer. set WMI = GetObject(&quot;winmgmts:\root\cimv2&quot;) set colCPU = WMI.InstancesOf(&quot;Win32_Processor&quot;) for each objCPU in colCPU wscript.echo objCPU.DeviceID & &quot; = &quot; & objCPU.Family next The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Keywords: kbbug kbfix kbqfe kbpubtypekc kbhotfixserver kbwinserv2003sp2fix KB924779

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