Technical Information 1-23
System Power Management
NEC Versa system power management consists of the following operation modes. These
modes are:
Active Mode
In active mode, the system uses no power management. It oper-
ates with the default clock speed. The system continues to run at this speed unless
overwritten by the power management features.
Standby Mode
The system switches automatically to Standby mode. This
eliminates unnecessary power consumption when you operate the system on bat-
tery power or AC. Standby mode shuts down the LCD panel, providing privacy as
well as power savings.
Suspend Mode
Suspend mode causes the CPU to power down, local devices
to shut down, and register values to be stored in RAM. System RAM is put into a
slow refresh state. A half moon icon in the LCD Status Bar indicates that Suspend
mode is in effect.
The system resumes Active mode when you press the Suspend button, or the
system is set to resume at a certain time of day. Suspend mode lets you save
power without first saving the working data.
Press the Suspend button to enter Suspend mode when you need to be away from
the system for a short period of time and want to return to where you left off.
In addition, to quickly activate the Save to File feature, press the Fn and Suspend
buttons simultaneously. This shuts down the system, and saves the current work-
ing data to a file.
Local Power Management
Use Auto Setup to select one of four power management settings for local devices. These
include Longest
Battery
Life, High Performance, Custom Setup, and Power Management
Off. The power management levels are also available during AC operation. The NEC Versa
computer ships with Longest
Battery
Life as the default power management setting. See
Section 2 for specific procedures on using Auto Setup to select the power management
settings.
When set to Longest Battery Life, CMOS will set local device timeout values, a local stand-
by timeout value, and a suspend timeout value to ensure the longest battery life. The High-
est Performance setting selects CMOS values that will provide minimal energy savings and
a shorter battery life. The custom settings enable end-users to set the timeout values of their
choice. The Power Management Off selection terminates all power management timers.
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