Power Switch < 4 Sec; System Wake-Up Event - Acer Altos 500L User Manual

System Sleep Timer
This parameter sets the system to the lowest power-saving mode after
a specified period of inactivity. Any keyboard or mouse action or any
activity detected from the IRQ channels resumes system operation.
Sleep Mode
This parameter lets you specify the power-saving mode that the
system will enter after a specified period of inactivity. The options are
Standby and Suspend modes.
This parameter becomes configurable only if the System Sleep Timer
is enabled. Any keyboard or mouse action, or any enabled monitored
activities occurring through the IRQ channels resume system
operation.
Power Switch < 4 sec.
When set to Power Off, the system automatically turns off when the
power switch is pressed for less than 4 seconds. When set to
Suspend , the system enters the suspend mode when pressed for less
than 4 seconds.

System Wake-up Event

The system wake-up event allows the system to resume operation
when the modem ring indicator is enabled.
Modem Ring Indicator
When Enabled any fax/modem activity wakes up the system from
suspend mode. The default setting is Enabled .
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