Asus UL30A - Manual (Page 28)

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Sleep and Hibernate
Power management settings can be found in the Windows > Control
Panel > Power Options. In System Settings, you can define “Sleep/
Hibernate” or “Shut Down” for closing the display panel or pressing
the power button. “Sleep” and “Hibernate” saves power when your
Notebook PC is not in use by turning OFF certain components. When
you resume your work, your last status (such as a document scrolled
down half way or email typed half way) will reappear as if you never
left. “Shut Down” will close all applications and ask if you want to save
your work if any are not saved.
Hibernate is the same as Suspend-to-Disk (STD) and stores your current data and status on the hard
disk drive. By doing this, RAM does not have to be periodically refreshed and power consumption is
greatly reduced but not completely eliminated because certain wake-up components like LAN needs
to remain powered. “Hibernate” saves more power compared to “Sleep”. Click the Start button and
the arrowhead next to the lock icon to see this option. Recover by pressing the power button. (NOTE:
The power indicator will be OFF in this mode.)
Sleep is the same as Suspend-to-RAM (STR). This function stores your
current data and status in RAM while many components are turned
OFF. Because RAM is volatile, it requires power to keep (refresh) the
data. Click the Start button and the arrowhead next to the lock icon
to see this option. You can also use the keyboard shortcut [Fn F1] to
activate this mode. Recover by pressing any keyboard key except [Fn].
(NOTE: The power indicator will blink in this mode.)
Power Management Modes
The Notebook PC has a number of automatic or adjustable power saving features that you can use to
maximize battery life and lower Total Cost of Ownership (TCO). You can control some of these fea-
tures through the Power menu in the BIOS Setup. ACPI power management settings are made through
the operating system. The power management features are designed to save as much electricity as pos-
sible by putting components into a low power consumption mode as often as possible but also allow
full operation on demand.
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Getting Started
Power management software is enabled as default. Power management feature enables the computer
to switch to low-power mode (or sleep mode) after a period of idle time to reduce the power consump-
tion and to help consumers save electricity cost. For more energy efficiency information, visit ASUS
website at http://csr.asus.com/english/index.aspx#37.