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What is Intel SpeedStep® technology? - KB Article - 161500

The Benefits of Intel® SpeedStep™ Technology

Intel SpeedStep® technology is the latest feature in the Intel line of mobile Pentium® III processors that allows the processor to be switched to a lower processor speed.


SpeedStep technology is not currently applicable to the Intel Celeron® processor line.

Decreasing the processor speed can extend the amount of time available for battery operation before requiring that the battery be recharged or replaced. One can set a SpeedStep enabled notebook computer to automatically switch to battery-optimized mode when the notebook is not connected to an AC power source or set the computer to remain in maximum performance mode at all times.

Accessing Intel® SpeedStep™

There is an Intel SpeedStep® utility (launched by double-clicking the SpeedStep icon located in the system tray) that allows you to configure these modes. (Figure 1)

Figure 1: SpeedStep icon


You must have the Intel SpeedStep application installed for the Intel software applet to appear.

SpeedStep-Enabled Portable Computers

The following Dell™ portable computers currently provide Intel SpeedStep® support:

  • Inspiron 600M
  • Inspiron 500M
  • Inspiron 8100
  • Inspiron 7500
  • Inspiron 5000e
  • Inspiron 5000
  • Inspiron 4100
  • Inspiron 4000
  • Inspiron 3800
  • Inspiron 3700
  • Inspiron 2500
  • Inspiron 2100
  • Latitude D400
  • Latitude D500
  • Latitude D505
  • Latitude D600
  • Latitude D800
  • Latitude X300
  • Latitude X200
  • Latitude CPtV, CPt S, CPxH, CPxJ
  • Latitude L400
  • Latitude C500
  • Latutude C600
  • Latitude C640
  • Latutude C840
  • Latitude V740
  • Mobile Workstation M50
  • Mobile Workstation M60
  • Latutude C810


The Inspiron 8000 and Latitude D800 computers do not provide support for the Intel software applet in Microsoft® Windows®, but they do have a battery-optimized mode and a performance mode setting in the BIOS (System Setup).

Additional Information on SpeedStep

For more information, go to the Intel Web site and reference Intel Solution ID CS-007509: Mobile Intel® Pentium® III.


Quick Tips content is self-published by the Dell Support Professionals who resolve issues daily. In order to achieve a speedy publication, Quick Tips may represent only partial solutions or work-arounds that are still in development or pending further proof of successfully resolving an issue. As such Quick Tips have not been reviewed, validated or approved by Dell and should be used with appropriate caution. Dell shall not be liable for any loss, including but not limited to loss of data, loss of profit or loss of revenue, which customers may incur by following any procedure or advice set out in the Quick Tips.

Article ID: SLN86592

Last Date Modified: 11/14/2010 12:00 AM

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