SpeedStep - Changing the settings - General



Document ID: 98080556

 

Posted Date: 2003-04-03

 

Last Updated: 2003-04-03

 

Distribution: View Public Website

 

Applicable Models
Satellite 1800-S203
Satellite 1800-S204
Satellite 1800-S206
Satellite 1800-S207
Satellite 1800-S253
Satellite 1800-S254
Satellite 1800-S256
Satellite 1800-S274
Satellite 1805
Satellite 1805-S154
Satellite 1805-S177
Satellite 1805-S203
Satellite 1805-S204
Satellite 1805-S207
Satellite 1805-S208
Satellite 1805-S253
Satellite 1805-S254
Satellite 1805-S255
Satellite 1805-S273
Satellite 1805-S274
Satellite 1805-S278
Satellite 2800-S201
Satellite 2800-S202
Satellite 2805
Satellite 2805-S201
Satellite 2805-S202
Satellite 2805-S301
Satellite 2805-S302
Satellite 2805-S401
Satellite 2805-S402
Satellite 2805-S503
Satellite 2805-S603
Satellite 3000-S304
Satellite 3000-S307
Satellite 3000-S309
Satellite 3000-S353
Satellite 3005-S303
Satellite 3005-S304
Satellite 3005-S307
Satellite 3005-S308
Satellite 3005-S403
Satellite 5005-S504
Satellite 5005-S507
Satellite 5005-S508
Tecra 8100
Satellite Pro 4300
Satellite Pro 4600

 

Issue

How do I adjust the settings for the SpeedStep processor in my notebook computer.

COMMENT:
SpeedStep technology lets you customize high-performance computing on your mobile PC. This feature is available in many Intel PIII CPUs including the 750, 700, 650, 600 and 600 (low voltage) MHZ. This feature allows the processor to "switch gears" in order to maximize processing power or conserve battery life under certain conditions.

Example: At 750 MHZ, your new mobile PC runs the most complex business and Internete applications with speeds virtually identical to a desktop system. When powered by a battery, the processing frequency drops to 600 MHz, conserving battery life while maintaining a high-level of performance. Manual override lets you boost the frequency back to 750 when on battery allowing you to customize performance.

Resolution

The SpeedStep settings can be adjusted in two places.

  • In BIOS (System Settings) under Dynamic CPU Frequency
  • In the Toshiba Hardware Setup under CPU

Changing SpeedStep settings in the BIOS

  1. Power up the computer while holding down the Esc key.
  2. Press F1 when prompted.
  3. Down arrow to the Dynamic CPU Frequency Mode in the Others option box.
  4. Use the space bar to choose between the following options
    - Dynamically Switchable (default) - The Power Saver controls the frequency.
    - Always High - Accelerates the CPU
    - Always Low - CPU normally uses this state
  5. Press the End key to Save settings and exit.

    The computer will reboot

Changing SpeedStep settings in the Toshiba Hardware Setup.

  1. Click Start/Settings/Control Panel.
  2. Double-Click on the Toshiba Hardware Settings icon.
  3. Click on the CPU Tab.
  4. Click one of the following Dynamic CPU Frequency mode options.
    - Dynamically Switchable (default) - The Power Saver controls the frequency.
    - Always High - Accelerates the CPU.
    - Always Low - CPU normally uses this state.
  5. Click Apply.
  6. Reboot the computer when prompted.

    Important Note:
    You can also toggle the FN-F2 Hotkey combo (except Satellite 16XX & 17XX) to select High Power, Normal or Long Life.


    Note: Toshiba Hardware Setup is part of the Toshiba Utilities which if missing can be reinstalled using the CBCD as noted below.

Reinstalling the Toshiba Utilities:
You can reinstall the Toshiba Utilities by using the Configuration Builder CD which came with your computer.

  1. With Windows running insert the Configuration Builder CD.
  2. Check the option "Install applications and drivers" and press Next.
  3. Down arrow to highlight Toshiba Windows 98 Utilities and then click Install.
  4. Follow the on-screen prompts to continue install the Toshiba W98 Utilities.
  5. Remove the CD and Restart the computer when prompted.
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