Acer Extensa 500 用户手册

The computer has a unique "automatic dim"  power-saving 
feature.  When the computer is using AC power and you 
disconnect the AC adapter from the computer, it 
automatically dims the LCD backlight to save power.  If you 
reconnect AC power to the computer, it automatically 
adjusts the LCD backlight to a brighter level.

The hard disk enters standby mode when there are no disk 
read/write operations within the period of time determined 
by the power management system.  In this state, the power 
supplied to the hard disk is reduced to a minimum.  The 
hard disk returns to normal once the computer accesses it.

The peripheral connections in your computer also power 
down to save power if there is no activity within the period 
of time specified by the computer’s power management 
system for these devices.  These include audio, serial ports, 
floppy drive and parallel port.

The computer consumes very low power in Standby mode.  
Data remain intact in the system memory until the battery 
is drained.

There is one necessary condition for the computer to enter 
Standby mode:

❑

Heuristic Power Management Mode must be set to 
[ENABLED].

There are four ways to enter Standby mode:

❑

Pressing the Standby hot key Fn-F3

❑

If the waiting time determined by the computer’s power 

500-e.book : 500-2e.fm  Page 37  Monday, August 17, 1998  9:36 PM