Microsoft KB Archive/312927

= Hardware that Requires the Non-Maskable Interrupt May Stop Working =

Article ID: 312927

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional

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This article was previously published under Q312927



SYMPTOMS
Hardware that requires the Non-Maskable Interrupt (NMI) may stop working.



CAUSE
This problem can occur because on some chipsets, the NMI is accidentally disabled. This can occur as an attempt to preserve the contents of I/O port 070h.



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:

  Date         Time   Version      Size     File name --  12-Dec-2001  07:17  5.1.2600.23  101,376  Hal.dll 12-Dec-2001 07:17  5.1.2600.23  128,000  Halaacpi.dll 12-Dec-2001 07:17  5.1.2600.23   77,440  Halacpi.dll 12-Dec-2001 07:17  5.1.2600.23  146,432  Halapic.dll 12-Dec-2001 07:17  5.1.2600.23  130,048  Halmacpi.dll 12-Dec-2001 07:17  5.1.2600.23  148,352  Halmps.dll 12-Dec-2001 07:17  5.1.2600.23   75,136  Halsp.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Keywords: kbhotfixserver kbqfe kbbug kbenv kbfix kbqfe kbwinxpsp1fix KB312927

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