L550/L550D/L555/L555D

System indicators

The LED system indicators for specific computer operations glow when those operations are in progress.

 

Figure 2-7 System indicators

 

 

DC IN

The DC IN indicator normally glows green when

 

power is being correctly supplied from the AC

 

power adaptor. However, If the output voltage

 

from the adaptor is abnormal, or if the computer’s

 

power supply malfunctions, this indicator will go

 

out.

 

 

Power

The Power indicator normally glows green when

 

the computer is turned on. However, if you turn

 

the computer off into Sleep Mode, this indicator

 

will flash amber - approximately one second on,

 

two seconds off - both while the system is

 

shutting down and while it remains turned off.

 

 

Battery

The Battery indicator shows the condition of the

 

battery’s charge - green indicates the battery is

 

fully charged, amber indicates the battery is

 

charging, and flashing amber indicates a low

 

battery condition. Please refer to Chapter 6,

 

Power and Power-up Modes for more information

 

on this feature.

 

 

HDD/ODD/eSATA

The HDD/ODD/eSATA indicator glows green

 

whenever the computer is accessing the built-in

 

hard disk drive or the other drives. It glows amber

 

when the ODD is loading a CD or DVD disc.

 

 

Bridge media slot

The Bridge media slot indicator glows green

 

when the computer is accessing the Bridge

 

media slot.

 

 

User’s Manual

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