Asus Eee PC X101 - Manual (Page 30)

Chapter 3: Using the Eee PC 3-8
Super Hybrid Engine
Super Hybrid Engine offers different power modes. The assigned instant
key toggles power savings between various power saving modes. The
power saving modes control many aspects of your Eee PC to maximize
performance versus battery time. Applying or removing the power adapter
will automatically switch the system between AC mode and battery mode.
The selected mode is shown on the display.
To change the power mode, press <Fn> + <Space Bar> repeatedly.
Super hybrid Engine Modes
Auto high Performance and
Auto Power-Saving mode
are available only when
applying or removing the
power adapter.