"Compaq.com - Compaq Presario Series Maintenance and Service Guide - Models: 1683,1685, 1887, 1688 and 1690
SleepYou can select Sleep mode instead of turning off the computer when you have finished using it. This allows the computer to wake up faster than turning it completely off and saves power over the active (On) mode. Compaq Presario Series Notebook computers have two levels of sleep, Hibernation and Sleep.
Hibernation - by pushing the power button once your computer will perform a save to disk followed
by a shut down of the computer into Off mode.
Sleep - is a low power mode, also referred to as Standby mode. While in Sleep mode, your computer
will maintain system information and open files. Unsaved information will be lost if you turn off your
system prior to system
CAUTION: While in Sleep mode, your computer will maintain system information and open files. Unsaved information will be lost if you turn off your system prior to system
Hibernation helps conserve battery life and protects your data. Hibernation can be a routine power saving event, or can be the result of a low battery condition. As it enters Hibernation your computer will display a progress screen, as it automatically saves the machine state before it shuts down and turns itself off. Your computer will automatically go into Hibernation, when the battery has little power left, or when the system (operating on battery power) has been in Sleep mode for more than an hour. You can also manually initiate Hibernation by pressing the power button once while the system is active. To restore the computer's previous state, simply press the power button once again. While waking up, the computer will display a progress screen.
The following table shows the conditions and indicators for getting in and out of the various power management modes, Sleep, Hibernation, and Off.
Mode |
| To Initiate |
| To End |
| Indicators |
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Sleep |
| Manual keys |
| Press any key |
| Flashing green |
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| combination |
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| Power LED |
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| - Fn+F4 |
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