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or 1. Save all necessary files. 2. Enter Hibernation mode. 3. Install the extra battery pack. 4. Resume from Hibernation mode. AC adapter or 1. Save all necessary files. power outlet 2. Exit the application. not available 3. Power off the computer. or 1. Save all necessary files. 2. Enter Hibernation mode. 38 User's Guide -é- 310-e.book Page 39 Tuesday, October 27, 1998 5:17 PM -®- Power Management Power Management This computer has a built-in power management unit that monitors system activity. System activity refers to any activity involving one or more of the following devices: keyboard, mouse, floppy drive, hard disk, peripherals connected to the serial and parallel ports, and video memory. If no activity is detected for a period of time (called an inactivity time-out), the computer stops some or all of these devices in order to conserve energy. Note: We recommend you enable power management to prolong your battery life. <9 Power Management Modes Display Standby Mode Screen activity is determined by the keyboard, the built-in touchpad, and an external PS/2 pointing device. If these devices are idle for the period specified by the Display Timeout, the display shuts off until you press a key or move the touchpad or external mouse. "Automatic Dim" Feature The computer has a unique "automatic dim" power saving feature. When the computer is using AC power and you disconnect the AC adapter from the computer, it automatically dims the LCD backlight to save power. If you reconnect AC power to the computer, it automatically adjusts the LCD backlight to a brighter level. Chapter 2 Operating on Battery Power 39 -é- 310-e.book Page 40 Tuesday, October 27, 1998 5:17 PM Power Management Hard Disk Standby Mode The hard disk enters standby mode when there are no disk read/write operations within the period of time specified by the Hard Disk Timeout. In this state, the power supplied to the hard disk is reduced to a minimum. The hard disk returns to normal once the computer accesses it. Peripheral Standby Modes The peripheral connections in your computer also power down to save power if there is no activity within the period of time specified by Timeout values for these devices. These include audio, serial ports, floppy drive and parallel port. Standby mode The computer consumes very low power in Standby mode. All data remains intact in the system memory until the battery is drained. There is one necessary condition for the computer to enter Standby mode: □ Heuristic Power Management must be set to [ENABLED] There are five ways to enter Standby mode: □ Pressing the Standby hot key Fn-F3 □ Allowing the waiting time determined by the Standby Timeout to elapse without any system activity □ Closing the display cover □ Allowing the computer to enter Hibernation mode when battery is low, but □ the Hibernation file is invalid or not present, or □ Allowing the operating system power saving modes to invoke it 40 User's Guide 310-e.book Page 41 Tuesday, October 27, 1998 5:17 PM -®- Power Management Note: If the computer beeps but does not enter Standby mode after pressing the Standby hot key, it means the operating system will not allow the computer to enter the power saving mode. The following signals indicate that the computer is in Standby mode: □ The buzzer beeps □ The Standby indicator lights Warning: Unstored data is lost when you turn off the computer power in Standby mode (by holding the power switch for more than 4 seconds) or when the battery is drained. To leave Standby mode and return to normal mode: □ Press any key □ Move the active pointing device (internal or external, PS/ 2 or serial) □ Allow the Resume Timer to be matched □ Open the display cover □ Receive an incoming PC card modem event when the Resume on Modem Ring is enabled Hibernation mode In Hibernation mode, all power shuts off (the computer does not consume any power). The computer saves all system information onto the hard disk before it enters Hibernation mode. Once you turn on the power, the computer restores this information and resumes where you left off. Chapter 2 Operating on Battery Power 41 -é- 310-e.book Page 42 Tuesday, October 27, 1998 5:17 PM Power Management There are two necessary conditions for the computer to enter Hibernation mode: □ The Hibernation file created by PHDISK must be present and valid. See “PhDISK” on page 71 □ Heuristic Power Management must be set to [ENABLED] In this situation, there are four ways to enter Hibernation mode: □ Pressing the Hibernation hot key Fn-F4 □ Allowing the Hibernation Timeout to elapse without any system activity □ Experiencing a battery low condition for about a minute. With the Battery Low Suspend parameter in Setup set to [ENABLED] □ Allowing the operating system power saving modes to invoke it Note: If the computer beeps but does not enter Hibernation mode after pressing the Hibernation hot key, it means the operati...