Panasonic Toughbook CF-S9KWAZG1M Reference Manual page 57

Customizing the Power Setting
When using this computer with the battery pack only
We recommend against using applications that place a significant load on the CPU.
Some screen saver place a large burden on the CPU even when you are not operating the computer.
We recommend that you do not use a screen saver.
NOTE
To extend the battery operation time, activate the power saving function of the USB2.0 Root Hub.
In the default setting, the power saving function is activated.
Windows XP
Using Power Saving Utility
A single setting allows you to enable all the following power saving features. Enable each of these functions to prolong
battery operation time.
Screen display power saving function
Refresh rate will automatically be reduced to 40 Hz, if the internal LCD brightness level is set below 20cd/m
the battery. When [Enable] is set, the displayed screen may be distorted.
Intel video driver power saving function (Intel(R) Display Power Saving Technology)
This function adjusts video contrast, color and other factors to lower internal LCD power consumption while retaining
adequate image quality.
Disable this function for work that requires subtle image and color nuances or in video editing using video editing
applications.
Wired LAN standby power saving function
Enabling this function disables the Wake Up from wired LAN function to save power in standby/hibernation.
Disable this function if you want to use the Wake Up from wired LAN function.
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