Itronix GoBook III Dimensions

12825 E. Mirabeau Parkway • Spokane Valley, WA 99216 • 509.624.6600 • 800.441.1309
Technical Bulletin
Maximizing Battery Life with the Enhanced Hi-Bright Display
Introduction
When using portable electronic devices, it is critical to maximize battery life and run time. Displays typically have one of the most
significant impacts on power consumption and battery life in mobile computing. The GoBook III’s new Enhanced Hi-Bright display
option outputs significantly higher brightness levels than the previous model. This increase in brightness naturally increases the
power demand on the system battery. However, proper power management practices maximize battery run times. There are several
methods to consider with power management efforts. Below are two recommended methods you can utilize to conserve power and
increase battery run time.
Power Management Method 1
Set your Display to turn off after two (2) minutes of inactivity when running on battery power. To do this:
1 Select Start, Run…
2 In the Run dialogue box, enter “powercfg.cpl” and click OK. This opens the Power Options Properties dialogue box.
3 Select the Power Schemes tab.
4 In the Turn off monitor drop down menu under Running on batteries, select After 2 mins (see figure 1 below).
5 Next, select the Advanced tab.
6 In the “When I press the power button on my computer” drop down menu, select “Do nothing” (see figure 2 above).
7 Click OK
Notes To turn the monitor back on after it turns off due to inactivity, press any key on the keyboard. Step 6 above ensures the
system is not inadvertently powered off improperly when the display has been powered off due to inactivity.
97-0122-001 2006 April 20
Figure 1 Figure 2

Power Management Method 2
Limit the display brightness level by disabling High Brightness mode in the CMOS Setup utility. To do this:
1 Power on or restart the computer.
2 Shortly after the computer begins booting, the following prompt appears on the computer display, “Press DEL to enter Setup.
Press TAB to show POST information” Press the DEL key when you see this prompt.
3 Select “CMOS Setup Menu” and press Enter .
4 Press the right arrow to select the “Advanced” menu.
5 On the Advanced screen, press the down arrow to select “Extended Configuration” option and press Enter.
6 On the Extended Configuration screen, press the down arrow to select “High Brightness Mode” option and press Enter.
7 Use up or down arrow keys to select the “Disabled” option and press Enter.
8 Press Esc to exit the “Advanced” menu.
9 Press F10 to save and exit CMOS SETUP.
Disable High Brightness Mode
Select Advanced Menu
Select Extended
Configuration