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Frequently asked questions for Enhanced Intel SpeedStep® Technology on mobile

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This document is intended as a guide to resolve various issues with laptops or notebooks and Enhanced Intel SpeedStep® Technology. For the latest information, contact the manufacturer for your computer or mobile motherboard.

About

Click (+) or the questions to expand the content:

What is Enhanced Intel Speedstep® Technology?

Requirements and compatibility

Which Intel® Processors support Enhanced Intel Speedstep® Technology?

What are the system requirements to support Enhanced Intel Speedstep® Technology?

Is Enhanced Intel Speedstep® Technology compatible with Intel® Hyper-Threading Technology?

Use and performance

How do I use Enhanced Intel Speedstep® Technology?

How do I determine if Enhanced Intel SpeedStep® Technology is working with Microsoft Windows* XP?

Why does the operating speed not change on my laptop, when I go from AC to DC power, or DC to AC power?

Why does my keyboard not work when I switch performance modes?

The following questions apply to laptops running operating systems older than Microsoft Windows XP

Why did the applet icon disappear from the task bar after I changed the power management settings?

Why did the settings remain unchanged after I changed the power management settings in the applet?

Why does the applet icon not appear in the task bar?

Once I remove the Enhanced Intel SpeedStep® Technology applet icon from the taskbar, how do I access the applet or bring back the icon?

Related topics
Processors
Intel® Processor support
Product specifications and comparisons
Intel® Processor numbers
Mobile performance
Intel® Virtualization Technology
Intel® Processor Identification Utility

This applies to:

Intel® Core™ Duo Processor
Intel® Core™ Solo Processor
Intel® Core™2 Duo Mobile Processor
Intel® Core™2 Extreme Mobile Processor
Intel® Core™2 Solo Processor
Intel® Pentium® M Processor
Mobile Intel® Celeron® Processors
Mobile Intel® Pentium® 4 Processors - M
Mobile Intel® Pentium® III Processor

Solution ID: CS-028855
Last Modified: 27-Aug-2014
Date Created: 20-Feb-2008
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