Power management – Dell PRECISION 530 User Manual

Page 63

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Advanced Features

63

Power Management

Your computer can be set to use less power when you are not working. You
control the power usage through the

OS

installed on your computer and

certain option settings in

system setup

. These periods of reduced power are

called "sleep states":

Standby. In this sleep state, power is reduced or turned off for most

components, including the cooling fans. However, system memory

remains active.

This state is not supported by Windows NT

®

4.0.

NOTE:

All components installed in the computer must support this

feature and have the appropriate drivers loaded to enter standby. For
more information, see the manufacturer’s documentation for each
component.

Hibernate. This sleep state reduces power consumption to a minimum

by writing all data in system memory to a hard drive and then

removing system power. Waking up from this state restarts the

computer, and the memory contents are restored. Operation then

resumes where the computer left off when it entered the hibernation

state.

This state is not supported by Windows NT 4.0.

NOTE:

All components installed in the computer must support this

feature and have the appropriate drivers loaded to enter hibernation. For
more information, see the manufacturer’s documentation for each
component.

Shutdown. This sleep state removes all power from the computer

except a small auxiliary amount. As long as the computer remains

connected to an electrical outlet, it can be automatically or remotely

started. For example, the Auto Power On option in

system setup

allows the computer to automatically start at a specified time. Also,

your network administrator can remotely start your computer using a

PME

such as

Remote Wake Up

.

The following table lists the sleep states available for each operating system
and the methods you can use to wake the computer from each state.

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