Microsoft KB Archive/231949

= AMD CPUID Check for the AMD Athlon Chip Now Allows Write-Combining Feature =

Article ID: 231949

Article Last Modified on 11/1/2006

-

APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition
 * Microsoft Windows NT Server 4.0 Standard Edition

-



This article was previously published under Q231949



SYMPTOMS
When you start your computer, Windows NT 4.0 does a CPUID check for an Intel processor. If the processor is a Pentium II or Pentium III, code paths are opened to allow write-combining. The AMD Athlon processor also has the write-combining functionality, but the feature is not enabled when the kernel is initialized.



CAUSE
This problem occurs because the code was not in place to enable the write-combining functionality for the AMD Athlon processor.



Windows NT Server or Workstation 4.0
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:


 * http://www.microsoft.com/windows/servicepacks/ -or-


 * 152734 how to obtain the latest windows nt 4.0 service pack

For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://support.microsoft.com/directory/overview.asp

Windows NT Server 4.0, Terminal Server Edition
To resolve this problem, obtain the latest service pack for Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 How to Obtain the Latest Windows NT 4.0 Service Pack



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows NT Server version 4.0, Terminal Server Edition Service Pack 6.



MORE INFORMATION
k7 k-7

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB231949

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.