23-17OBJECTIVE 3.3 CONFIGURE ADVANCED CONFIGURATION POWER INTERFACEOBJ...

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Objective 3.3

Configure Advanced Configuration Power Interface

Objective 3.3

Configure Advanced Configuration Power Interface

There are two ways to extend battery life in mobile computers: enhance battery tech-

nology and decrease power utilization. The vendors of batteries have been slowly

improving their products since mobile computers were first introduced, but the great-

est gains over the past few years have come from making mobile computer hardware

and software more energy-efficient. Advanced Configuration Power Interface

(ACPI) allows computers running Windows XP Professional to use electricity more

efficiently than previous technologies. Windows XP Professional supports the ACPI for

sophisticated power management. Windows XP Professional also supports the older

and less-effective standard Advanced Power Management (APM).

On an ACPI system, power consumption is determined by the power settings config-

ured in the Power Options, the requirements of running services and applications, and

the capabilities of the installed hardware. To put it another way, Windows XP Profes-

sional fully supports the ACPI standard, but applications and hardware must be

designed to work with ACPI and Plug and Play for the power management system to

be as effective as possible.

To successfully answer questions in this objective, you must know how to create, mod-

ify, and select power schemes. You need to know how to enable and disable hiberna-

tion; and how to configure power alarms, Standby mode, and advanced power

settings. You must be able to install, configure, and troubleshoot PC Cards. You need

to be able to unplug or eject hardware from the taskbar.

Objective 3.3 Questions