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:
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
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
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
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
- Double-click System, and then click the
- Click Device Manager.
- Click the plus sign to the left of
- 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.
If you use Windows Vista, you can visit the following Microsoft Web page for help with power consumption and battery life problems: