User’s Manual 6-12Power and Power-Up ModesHot keysYou can use hot keys Fn + F3 to enter Sleep Mode and Fn + F4 to enterHibernation Mode. Refer to Chapter 5, The Keyboard for details.Panel power off/onYou can set up your computer so that power turns off automatically whenyou close the display panel. When you open the panel, power turns on inSleep Mode or Hibernation Mode but not in boot mode.System Auto OffThis feature turns the system off automatically if it is not used for a setduration. The system shuts down in Sleep Mode or Hibernation Mode inWindows.Refer also to the sections Turning on the power and Turning off the powerin Chapter 3, Getting Started.If the panel power off function is enabled and you use Shut downWindows, do not close the display until the shut down function is complete.