SpeedStep

SpeedStep technology is an innovative technology that allows the processor in two modes to switch freely between that state's highest performance power mode and battery status when the battery optimization mode. Mode Maximum performance mode So-called maximum performance mode when the laptop is connected to AC power, can provide similar performance with desktop Battery optimization mode Battery optimization mode is used when the laptop battery, notebook computers will play with their battery performance between the best balance. Such as the use of SpeedStep technology Intel introduced the 650MHz and 600MHz processors, when they are the highest performance mode, you can provide 650MH or 600MHz operating frequency, and battery-optimized mode, the processor's operating frequency is 500MHz. SpeedStep system components SpeedStep power system consists of automatic identification system and automatic voltage regulation system components, including the system BIOS, end-user interface software, switch control ASIC and chipset. When the laptop is running in battery optimization mode, CPU's voltage is 1.35V, at 500MHz, then, received the laptop AC power supply, in less than 1 / 2000 second time, automatic identification system and automatic voltage power supply adjust the system will automatically increase the CPU voltage 1.6V, frequency, respectively, according to the different CPU 600MHz or up to 650MHz. It is not difficult to see, SpeedStep technology allows the highest CPU performance mode and battery-optimized mode switch freely between the user's command or switch. The performance of switching, SpeedStep technology CPU power can be reduced by 40%, 80% while still maintaining the highest performance.
 Mobile-based Pentium Ⅲ or Pentium4 chips are used automatically adjust the dynamic frequency and voltage switching SpeedStep technology, which allows them to work at higher frequencies and optimized battery power to switch between. Notebook computer system BIOS is the CPU ID check of the registration CPU with SpeedStep feature that, in determining whether the notebook computer using AC power supply is after, BIOS and CPU ASIC will issue instructions, and make it run in the corresponding mode Next, all of which will be completed within 500ms.
 In fact, for the user, if not loaded on the system platform, the new chart, SpeedStep technology is almost invisible. But in the background, SpeedStep technology does take a run at a higher speed and longer battery life to find a balance between the responsibility. To enable users to understand the current work status, Intel's platform is set in the flag-shaped icon to indicate the mode of operation. In no special specified circumstances, unless the use of battery power, SpeedStep power-saving non-default mode. If you want custom settings, users from the Windows control panel power management projects to achieve this functionality.