Acer TravelMate 510, Service Manual, Page: 36 / 138

28 System Introductions
elapse without any system activity
When a battery low condition occurs and the Sleep Upon Battery-low
parameter in Setup is set to [ENABLED]
Invoked by the operating system power-saving modes
Note: If the computer beeps but does not enter Hibernation mode after
pressing the Hibernation hotkey, 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.
Sleep Mode (ACPI)
If ACPI is installed, all power management functions are handled by the
Windows operating system. In this setup, you do not need to set timout
values for devices before they enter a power-saving mode.
Sleep mode may be one of three computer power saving modes: standby,
hibernation or power off. Windows automatically determines which of these
modes to enter.
To enter Sleep mode under ACPI:
Press the Sleep hotkey Fn-F4
Allow the idle times for devices and the computer determined by
Windows 98 to elapse
How to exit Sleep mode depends upon which power-saving mode the
computer is in.