To Control The Processor Speed - HP Pavilion User Manual

Traveling with Your Computer
Using Battery Power

To control the processor speed

If your computer contains a high-speed Pentium III processor with Intel SpeedStep
Technology, you can change settings that control the processor speed. If the taskbar
contains an Intel SpeedStep Technology icon, your computer has this feature.
With the default settings, the processor speed changes automatically according to the
power source (ac adapter or battery). The lower speed uses power more efficiently and is
normally used when the computer is running on battery power.
Automatic Speed Changes
• If you reboot the computer with the ac adapter plugged in, the processor starts at high
speed. If the computer is on battery power, the processor starts at low speed.
• If you unplug the ac adapter while the computer is running or suspended, the
processor changes to low speed.
• If you plug in the ac adapter while the computer is running or suspended, the
processor changes to high speed.
Changing Speed Settings
• To set the speed used by the processor at boot, or to disable the dual-speed feature,
change the Intel SpeedStep Technology setting in BIOS Setup in the Power menu.
For information on how to run BIOS Setup, see the Tips and Troubleshooting file on
the HP notebook Web site, www.hp.com or www.europe.hp.com (European mirror).
• To set the speed used by the processor while Windows is running, double-click the
Intel SpeedStep Technology icon in the taskbar or use the Control Panel Power
Options icon (Power Management in Windows 98).
56 User's Guide