Acer Extensa 500 User Guide - Page 59

See Sleep Manager on Suspend parameter in Setup is set to [ENABLED].

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Power Management There are two necessary conditions for the computer to enter Hibernation mode: u The Hibernation file created by Sleep Manager must be present and valid. See "Sleep Manager" on page 67. u Heuristic Power Management Mode must be set to [ENABLED]. In this situation, there are four ways to enter Hibernation mode: u Pressing the Hibernation hot key Fn-F4 u If the waiting time determined by the computer's power management system elapses without any system activity u If a battery low condition occurs and the Battery Low Suspend parameter in Setup is set to [ENABLED]. u Invoked by the operating system power saving modes Note: If the computer beeps but does not enter Hibernation mode after pressing the Hibernation hot key, it means the operating system will not allow the computer to enter the power-saving mode. To exit Hibernation mode, press the power switch. The computer also resumes from Hibernation mode if the resume timer is set and matched. Warning: Do not change any devices (such as add memory) when the computer is in Hibernation mode. Chapter 2 Operating on Battery Power 39

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Power Management
Chapter 2
Operating on Battery Power
39
There are two necessary conditions for the computer to
enter Hibernation mode:
The Hibernation file created by Sleep Manager must be
present and valid.
See “Sleep Manager” on page 67.
Heuristic Power Management Mode must be set to
[ENABLED].
In this situation, there are four ways to enter Hibernation
mode:
Pressing the Hibernation hot key
Fn-F4
If the waiting time determined by the computer’s power
management system elapses without any system activity
If a battery low condition occurs and the Battery Low
Suspend parameter in Setup is set to [ENABLED].
Invoked by the operating system power saving modes
To exit Hibernation mode, press the power switch.
The
computer also resumes from Hibernation mode if the
resume timer is set and matched.
Note:
If the computer beeps but does not enter
Hibernation mode after pressing the Hibernation hot key,
it means the operating system will not allow the computer
to enter the power-saving mode.
Warning: Do not change any devices (such as add
memory) when the computer is in Hibernation mode.