Heuristic Power Management42 User’s Guideq Experience an incoming PC card modem eventHibernation ModeIn Hibernation mode, all power shuts off (the computer doesnot consume any power). The computer saves all systeminformation onto the hard disk before it enters Hibernationmode. Once you turn on the power, the computer restoresthis information and resumes where you left off uponleaving Hibernation mode.There are two necessary conditions for the computer toenter Hibernation mode:q The Hibernation file created by PhDISK must be presentand valid. See “PhDISK” on page 73.q Heuristic Power Management must be set to [ENABLED].In this situation, there are four ways to enter Hibernationmode:q Pressing the Hibernation hot key Fn-F4q If the waiting time determined by the computer’s HPMunit elapses without any system activityq If a battery low condition occurs and the Battery LowSuspend parameter in Setup is set to [ENABLED].q Invoked by the operating system power saving modesNote: If the computer beeps but does not enterHibernation mode after pressing the Hibernation hot key,it means the operating system will not allow the computerto enter the power-saving mode.
