Acer Aspire E571, Service Manual

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Chapter 2 39
Power Management Setup
The system has various power-saving modes including powering down the hard disk, turning off the video,
suspending to RAM, and software power down that allows the system to be automatically resumed by certain
events.
The power-saving modes can be controlled by time-outs. If the system is inactive for a while, the time-outs begin
counting. If the inactivity continues so that the time-out period elapses, the system enters a power-saving mode. If
any item in the list of Reload Global Timer Events is Enabled, then any activity on that item will reset the time-out
counters to zero.
If the system is suspended or has been powered down by software, it can be resumed by a wake up call that is
generated by incoming traffic to a modern, a LAN card, a PCI card, or a fixed alarm on the system real-time clock.
ACPI Function
This item allows users to enable or disable the ACPI power management function.
ACPI Suspend Type
You can use this item to define how your system suspends.
Soft-Off by PWRBTN
Under ACPI (Advanced Configuration and Power Management Interface) you can create a software power down.
In a software power down, the system can be resumed by Wake Up Alarms. This item lets you install a software
power down that is controlled by the power button on your system. If the item is set for Instant-Off, then the power
button causes a software power down. If the item is set for Delay four Sec., then you have to hold the power button
down for four seconds to cause a software power down.