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Article ID: 310718 - Last Review: June 5, 2007 - Revision: 1.3

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This article was previously published under Q310718

SYMPTOMS

In Windows XP, you may experience poor video capture and erratic System Monitor readings if your computer has either of the following chipsets:
  • Intel 815x chipsets with Advanced Programmable Interrupt Controller (APIC)
  • VIA 686B chipsets

CAUSE

The VIA power management timer hardware originally worked incorrectly, and a patch was applied to the hardware abstraction layer (HAL) to fix the problem on Intel 815x chipsets. Since that time, the VIA chipset was modified to correct the timer problem, but this causes the patched HAL to give incorrect timing values. This makes video capture "choppy," and causes System Monitor to generate incorrect readings under some conditions. The problem occurs with Intel 815x chipsets with APIC, and with the VIA dev_1106 and ven_0686 power management timers when you use a video capture adapter with a composite-in port.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389  (http://support.microsoft.com/kb/322389/EN-US/ ) How to Obtain the Latest Windows XP Service Pack
The English version of this fix should have the following file attributes or later:
   Date         Time   Version      Size     File name
   ------------------------------------------------------
   29-Oct-2001  08:57  5.1.2600.17  129,280  Halaacpi.dll
				

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 XP Service Pack 1.

APPLIES TO
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
Keywords: 
kbhotfixserver kbqfe kbbug kbfix kboswin2000fix kbwinxpsp1fix KB310718
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