HP Pavilion xt500 HP Pavilion ze5100 Series and HP Omnibook xe4400 Series Note - Page 52

Managing Power Consumption

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Batteries and Power Management Managing Power Consumption Managing Power Consumption When you're running your computer on battery power, you will want to maximize operating time without compromising performance. Your computer is designed to help you reduce power consumption and extend battery life without needing to turn it off. • During idle periods, the computer automatically enters power-saving modes after specified timeout periods. You can adjust these timeouts to suit your working habits. • You can manually send the computer into a power-saving mode at any time by pressing the appropriate key-see "To manage power manually" on page 54. How the computer manages power automatically Your computer automatically enters Hibernate mode and Standby mode, and turns off the hard disk and display based on values set in Power Options in Control Panel. Automatic action Occurs after... To resume... Turns off hard disk. Turns off the hard disk drive. This is usually set to occur shortly after the display is turned off. The hard disk is not accessed for the specified interval. Begin using the computer: the hard disk turns on when needed. Turns off display. Turns off the display to conserve battery power and extend the life of the display. No keyboard, pointing device, or other input activity occurs for the specified interval. Press any key or move a pointing device to turn on the display. Enters Standby mode. Maintains your current session in RAM, and turns off the display and other components to conserve battery power. No pointing devices are used, no disk drive is accessed, and no port (serial, parallel, or IR) is active for the specified interval. Press the power button to return to your current session. Enters Hibernate mode. Saves your current session to the hard disk, and then turns off the computer. The computer stays in Standby mode for the specified interval. Press the power button to restore your previous session. 52 Reference Guide

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Batteries and Power Management
Managing Power Consumption
52
Reference Guide
Managing Power Consumption
When you’re running your computer on battery power, you will want to maximize
operating time without compromising performance. Your computer is designed to help
you reduce power consumption and extend battery life without needing to turn it off.
•
During idle periods, the computer automatically enters power-saving modes after
specified timeout periods. You can adjust these timeouts to suit your working habits.
•
You can manually send the computer into a power-saving mode at any time by
pressing the appropriate key—see “To manage power manually” on page 54.
How the computer manages power automatically
Your computer automatically enters Hibernate mode and Standby mode, and turns off the
hard disk and display based on values set in Power Options in Control Panel.
Automatic action
Occurs after…
To resume…
Turns off hard disk.
Turns off the hard disk drive. This is usually
set to occur shortly after the display is turned
off.
The hard disk is not accessed
for the specified interval.
Begin using the computer:
the hard disk turns on
when needed.
Turns off display.
Turns off the display to conserve battery
power and extend the life of the display.
No keyboard, pointing device,
or other input activity occurs for
the specified interval.
Press any key or move a
pointing device to turn on
the display.
Enters Standby mode.
Maintains your current session in RAM, and
turns off the display and other components
to conserve battery power.
No pointing devices are used,
no disk drive is accessed, and
no port (serial, parallel, or IR) is
active for the specified interval.
Press the power button to
return to your current
session.
Enters Hibernate mode.
Saves your current session to the hard disk,
and then turns off the computer.
The computer stays in Standby
mode for the specified interval.
Press the power button to
restore your previous
session.