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User’s Manual 6-8
Power and Power-Up Modes
Technology which increases battery operating time
This computer is equipped with technology which increases battery
operating time.
The following functions allow for increased battery operating time.
1. Semi-transparent LCD
■ BackLight On/Off button (please refer to the Special features
section in Chapter 3, Hardware, Utilities and Options.)
■ Multi-field Driving (BIOS Setup) (please refer to the BIOS Setup
Program section in Chapter 7, HW Setup & BIOS Setup.)
2. ODD
■ Optical disc drive power on/off function (please refer to the Hot keys
section in Chapter 5, The Keyboard.)
3. Performance/Battery Life Settings (BIOS Setup) (please refer to the
BIOS Setup Program section in Chapter 7, HW Setup & BIOS Setup.)
■ Gfx Render Clock switching
■ Memory operating frequency switching
4. LAN
■ Built-in LAN Enable/Disable function (BIOS Setup) (please refer to
the BIOS Setup Program section in Chapter 7, HW Setup & BIOS
Setup.)
Maximizing battery operating time
A battery's usefulness depends on how long it can supply power on a
single charge, while how long the charge lasts in a battery depends on:
■ Processor speed
■ Screen brightness
■ System Sleep Mode
■ System Hibernation Mode
■ Display power off period
■ Hard disk drive power off period
■ How often and for how long you use the hard disk drive and external
disk(c) drives, for example, optical disc and floppy diskette drive.
■ How much charge the battery contained to begin with.
■ How you use optional devices, such as a PC Cards, to which the
battery supplies power.
■ Whether you enable Sleep Mode, which can conserve battery power if
you are frequently turning the computer off and on.
■ Where you store your programs and data.
■ Whether you close the display panel when you are not using the
keyboard - closing the display saves power.
■ The environmental temperature - operating time decreases at low
temperatures.