Availability of a processor driver to support mobile processor power management features on Intel Mobile "Prescott" processors (832885)


The information in this article applies to:

  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Tablet PC Edition

SYMPTOMS

Computers that are equipped with Intel Mobile "Prescott" processors and that support mobile processor power management features require correct BIOS support and an updated processor driver to enable these power management features on a computer that is running Microsoft Windows XP. These power management features include Intel SpeedStep technology and ACPI-defined processor idle sleep states (C-states). Without the processor driver update, computers that are equipped with these power management-capable mobile processors may experience reduced battery life, decreased performance, or increased operating temperatures.

RESOLUTION

Service pack information

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

322389 How to obtain the latest Windows XP service pack

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix 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 hotfix. 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/contactus/?ws=support

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 usual 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 hotfix has the file attributes (or later) 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 tool in Control Panel. 
Date         Time   Version          Size    File name
------------------------------------------------------
27-Jan-2004  01:51                  1,829    Ippmqfe.inf
10-Jan-2004  12:17  5.1.2600.1331  32,256    Intelppm.sys

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article. This problem was first corrected in Microsoft Windows XP Service Pack 2.

MORE INFORMATION

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.
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Modification Type:MinorLast Reviewed:10/28/2005
Keywords:kbHotfixServer kbQFE kbWinXPsp2fix kbQFE kbWinXPpreSP2fix kbfix kbbug KB832885 kbAudITPRO
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