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Battery power may be drained more quickly than expected on your Windows XP-based portable computer

Article ID: 884575 - View products that this article applies to.

SYMPTOMS

When your Microsoft Windows XP-based portable computer resumes from hibernation, and then you unplug the AC power from the computer, the battery may be drained more quickly than expected. Therefore, the operating system may shut down prematurely.

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CAUSE

In this scenario, the Power Options feature in Windows XP may not correctly adjust the CPU state to reduce the amount of battery power that the computer uses.

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RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

(http://support.microsoft.com/contactus/?ws=support)

Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. 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.

   Date         Time   Version            Size    File name
   -----------------------------------------------------------
   27-Aug-2004  21:42  5.1.2600.2508      36,096  Intelppm.sys
   27-Aug-2004  21:42  5.1.2600.2508      35,456  Processr.sys

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