NEC M380 manual Windows XP Operating System Power Management States

Windows® XP Operating System Power Management States

The Advanced Configuration and Power Interface (ACPI) uses different levels or states of power management. These power management states occur automatically, based on the notebook’s default settings, or manually, when invoked.

The Windows® XP operating system ACPI power management states include:

•Monitor timeout - manages power at the lowest level by shutting down the monitor.

•Standby - also known as Save-to-RAM (STR), Standby manages power by saving your current working environment to memory and shutting down most system devices.

•Hibernation - also known as Save-To-Disk, or Save-To-File (STF), Hibernation manages power by saving the current working environment to an area on your hard disk before turning off your notebook. When you restart the notebook, any programs and documents that were open when you turned the notebook off are restored on the Desktop.

Recognising the Power Management States

It is important to recognise your notebook’s behaviour when in each of these power management states. The following table describes the notebook behaviour for each power management state.

Default Setting

LCD Timeout

5minutes, DC power

15minutes, AC power

Standby (STR)

5 minutes, DC power

20 minutes, AC power

Hibernate (STF)

2 hours, DC power

3 hours, AC power

Manually

Invoke

-

Go to Start, Turn off computer, Standby Close the LCD panel (1)

Press or slide the power button

(1).

Close LCD panel (1).

Press or slide the power button (1) Right-click on the taskbar, select Task Manager, Shut Down, and Hibernate.

Go to Start, Turn off computer, and hold the Shift key as you select Standby.

Notebook Behaviour

Resume

LCD panel is blank Power LED (AC or battery) lights green

Press any key

LCD panel is blank.

Power LED (AC or battery) blinks green.

Press or slide the power button.

LCD panel is blank.

Power LED (AC or battery) turns off.

Progress bar indicates that current working environment saved to hard disk.

Press or slide the power.

(1) Only when set in Advanced Windows® Power Management Properties.

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