Hitachi SA200 manual Lonestar.boo sa200.fm Page 71 Friday, March 6, 1998 1053 AM

lonestar.boo : sa200.fm Page 71 Friday, March 6, 1998 10:53 AM

5 The Power System

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Accounts for operating system inactivity and power demands.

Accounts for application inactivity and power demands. Allows application programs, operating systems, and the system BIOS to share power management features to ensure more efficient use of power.

Determines when power saving features should be active.

Operates transparently behind the scenes.

While you are running an APM-aware application, the APM detects any system inactivity. If APM detects that either the operating system or the application is waiting for input (or is in some other idle state), APM reduces the CPU to minimum speed. When high speed is required again, APM increases the CPU to maximum speed.

Because APM constantly monitors all system activity, accounts for your laptop’s power consumption, and controls all power saving features, your laptop will realize significant additional power savings.

Because APM is software based, you must set up your system software configuration to load APM for it to operate automatically. When the APM driver is correctly configured, APM loads and becomes active each time you boot your computer. An APM icon also appears in your laptop’s Windows 95 Control Panel. When you double-click on this icon, a dialog box displays and you can select between standard, advanced, or no power management modes. The dialog box also contains a battery power status gauge that indicates the current battery power level and status.

Refer to your Windows 95 documentation for a more thorough explanation of the APM interface and its features.

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