This article was previously published under Q332179
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Microsoft has released a processor driver for Windows XP Service Pack 1 (SP1) that supports the mobile power management features of Intel Pentium M (Centrino) processors. These features include Intel Enhanced SpeedStep Technology and Intel Deeper Alert Sleep State. Without this processor driver, Windows XP-based computers that are based on the Intel Pentium M processor may experience reduced battery life, decreased performance, or increased operating temperatures.
For additional information about the latest service pack for Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack
To obtain this driver, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
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 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 ---------------------------------------------------- 19-Nov-2002 01:20 5.1.2600.1143 30,976 Gv3.sys
Note You must have Windows XP SP1 installed to apply this update. Windows XP Tablet PC Edition and Windows Media Center Edition include SP1.
To install the Gv3.sys driver that is downloaded with the hotfix, follow these steps:
Click Start, and then click Control Panel.
Double-click System, and then click the Hardware tab.
Click Device Manager.
Click the plus sign to the left of Processors.
Right-click your processor, and then click Update Driver from the drop-down menu.
Click Install from a list or specific location, and then click Next.
Click to select the Don't Search. I will choose the driver to install. check box, and then click Next.
Click Have Disk.
Locate the Gv3.sys file.
Click Open, and then follow the instructions on the screen to finish installing the driver.
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
Note If you use Windows Vista, you can visit the following Microsoft Web page for help with power consumption and battery life problems: