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User’s Manual 1-9
L450/L450D
Keypad overlay A ten-key numeric keypad is integrated into the
keyboard. Please refer to the Keypad overlay
section in Chapter 5, The Keyboard, for
information on using this feature.
Power on password Two levels of password security, supervisor and
user, are available to prevent unauthorized
access to your computer.
Instant security A specific hot key function automatically locks the
system providing data security.
Intelligent power
supply
*1
A microprocessor in the computer’s intelligent
power supply detects the battery’s charge,
automatically calculates the remaining battery
capacity and protects electronic components
from abnormal conditions such as a voltage
overload from the AC adaptor. This can be
specified in the Power Options.
Battery save mode
*1
This feature lets you configure the computer in
order to save battery power. This can be
specified in the Power Options.
Low battery
automatic
Hibernation Mode
*1
When battery power is exhausted to the point that
computer operation cannot be continued, the
system automatically enters Hibernation Mode
and shuts itself down. This can be specified in the
Power Options.
Heat dispersal
*1
To protect against overheating, the processor has
an internal temperature sensor so that, if the
computer’s internal temperature rises to a certain
level, the cooling fan is turned on or the
processing speed is lowered. This can be
specified in the Power Options.
If the processor’s temperature reaches an unacceptably high level with
either setting, the computer will automatically shuts down to prevent any
damage - in this instance all unsaved data in memory will be lost.
Hibernation Mode This feature lets you turn off the power to the
computer without exiting from your software. The
contents of main memory are automatically
saved to the hard disk drive so that when you
next turn the power on again, you can continue
working right where you left off. Refer to the
Turning off the power section in Chapter 3,
Getting Started, for more details.