Power and Power-Up Modes

Power indicator

Check the Power indicator to determine the power status of the computer - the following indicator conditions should be noted:

Green

Indicates power is being supplied to the computer

 

and the computer is turned on.

 

 

Blinking green

Indicates that the computer is in Sleep Mode and

 

that there is sufficient power available (AC adaptor

 

or battery) to maintain this condition. In Sleep

 

Mode, this indicator will turn on for two seconds

 

and off for two seconds.

No light

Under any other conditions, the indicator does not

 

light.

Battery

This section explains battery types, use, recharging methods and handling.

Battery types

The computer has different types of batteries.

Battery pack

When the AC adaptor is not connected, the computer's main power source is a removable lithium ion battery pack, also referred to in this manual as the main battery. You can purchase additional battery packs for extended use of the computer away from an AC power source although you should not change the battery pack while the AC adaptor is connected.

Before you remove the battery pack, save your data and shut down the computer, or place the computer into Hibernation Mode. Please be aware that, when placing the computer into Hibernation Mode, the contents of memory will be saved to the hard disk drive, although for safety sake, it is best to also save your data manually.

Real Time Clock (RTC) battery

The Real Time Clock (RTC) battery provides power for the internal real time clock and calendar function and also maintains the system configuration while the computer is turned off. If the RTC battery becomes completely discharged, the system will lose this information and the real time clock and calendar will stop working - in this instance the following message will be displayed when you turn on the power:

S ERROR 0271: Check data and time settings

WARNING 0251: System CMOS checksum bad - Default configuration used

Press <F1> to resume, <F2> to Setup

User’s Manual

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