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

A microprocessor in the computer’s intelligent

 

supply *1

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

When battery power is exhausted to the point that

 

automatic

computer operation cannot be continued, the

 

Hibernation Mode *1

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.

User’s Manual

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