Understanding power management

Power management is invoked when the computer recognizes that you have not used your mouse or keyboard for a user-definable period. There are several states as described in the table below.

For optimal performance, switch off your monitor at the end of each working day, or whenever you expect to leave it unused for long periods during the day.

Table 2-4.Power indicator

 

 

 

Restoring

 

State

Power Indicator

Screen

Operation

Compliance

 

 

 

 

 

On

green

Normal

 

 

 

 

 

 

 

Standby/Suspend

Amber

Blank

Press a key or

ENERGY STAR

 

 

 

move the mouse

 

 

 

 

There may be a

 

 

 

 

slight delay

 

 

 

 

before the image

 

 

 

 

reappears.

 

 

 

 

Note: Standby

 

 

 

 

also occurs if

 

 

 

 

there is no image

 

 

 

 

output to the

 

 

 

 

monitor.

 

 

 

 

 

 

Off

Off

Blank

 

ENERGY STAR

 

 

 

 

 

Chapter 2. 2-7

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Lenovo 4415-AB1 manual Understanding power management, Restoring State Power Indicator Screen Operation Compliance