Compaq 1245 specifications Hibernation Mode, Mode To Initiate To End Indicators

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Maintenance & Service Guide

Presario 1200 Series

Model: 1245

Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations

Power Management for Windows 98

Hibernation Mode

Hibernation helps conserve battery life and protect 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 displays a progress screen, as it automatically saves the machine state before it shuts down and turns itself off. Your computer automatically goes 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 displays 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

Sleep

 

Manual keys

 

Press any key

 

Flashing green

 

 

combination

 

 

 

Power LED

 

 

- Fn+F4

 

 

 

 

 

 

Time Out Default -

 

 

 

 

 

 

15 minutes if on Battery

 

 

 

 

 

 

power (system will not

 

 

 

 

 

 

time out to sleep)

 

 

 

 

Hibernate

 

Manual - Press Power

 

Press Power

 

No Power

 

 

Button once

 

Button once

 

LED, blank

 

 

 

 

 

 

screen

 

 

Time Out Default -

 

 

 

 

 

 

If low battery or after 1

 

 

 

 

 

 

hour of sleep (system will

 

 

 

 

 

 

not Hibernate if on AC

 

 

 

 

 

 

power)

 

 

 

 

Off

 

Perform normal Windows

 

Press Power

 

No Power

 

 

shutdown via the start

 

Button once

 

LED, blank

 

 

button, or press and hold

 

 

 

screen

 

 

down the power button

 

 

 

 

 

 

for 4 seconds

 

 

 

 

Return to Power Management for Windows 98 list.

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Contents Maintenance & Service Guide Maintenance & Service Guide Symbols PrefaceCompaq Product DescriptionDisplay 12 HPA Processor Models & FeaturesBattery ES NiMH System Memory 32 MB Hard Drive CD Drive 24× MAX ModemFront Panel Components Controls and LightsLeft Side Components Right Side Components Bottom of Unit Rear Connectors Power Management for Windows Display Properties Power Management SettingsPower Management Properties Sleep Hibernation Mode Mode To Initiate To End IndicatorsRebooting After a Lockup Servicing Your Computer Full Off Mode Illustrated Parts Catalog Place cursor over each device to obtain its part number System UnitBoards Place cursor over each device to obtain its part numberDisplay Assembly Mass Storage Devices Place cursor over each device to obtain its part numberMiscellaneous Cables Kit Power Cord CablesMiscellaneous Hardware and Plastics Kit Miscellaneous Hardware and Plastics KitMiscellaneous Parts Spare Part Number Documentation and SoftwareDescription Removal and Replacement Procedures Serial Number LocationElectrostatic Discharge Generating StaticService Considerations Plastic Parts Cables and ConnectorsSelect the desired illustration ZIF Connectors Ribbon cable position for the 3.2-GB hard drive Ribbon cable position for the CD drive Ribbon cable position for the diskette drive Back to Cables and Connectors Preparing the Computer for Disassembly Removing the Battery Pack To remove the battery pack, complete the following stepsReplacement Procedures Prepare the computer for disassembly Removing the Palmrest Cover with Touch PadWhen replacing the palmrest cover, ensure Return to Removal Removing the Heatspreader Removing the Keyboard Removing the Processor To replace the processor complete the following steps Maintenance & Service Guide Removing the Hard Drive Presario 1200 Series Models Replacement Procedures Removing the CD Drive Maintenance & Service Guide To replace the CD drive, reverse the previous procedures Removing the Battery Charger Board Removing the Modem To replace the modem, reverse the previous procedures Removing the Display Panel Assembly Maintenance & Service Guide Maintenance & Service Guide Maintenance & Service Guide When removing the display panel assembly Return to Removal Removing the Upper CPU Cover Removing the Speaker Assembly Fan Assembly System Board Dip Switch Settings Memory Module Removing the Diskette DriveReplacement Procedures Removing the Fan Assembly System Board Dip Switch Settings Memory ModuleTo replace the fan assembly, reverse the previous procedure Removing the System Board Remove three standoffs from the system board Maintenance & Service Guide Remove three screws from the system board To replace the system board, reverse the previous procedures Removing the Memory Module Memory ModuleReplacement Procedures Specifications Physical and EnvironmentalHardware System Function System InterruptsSystem Interrupts Hardware DMA System Function System DMASystem DMA System I/O Address Address Hex System Function Shipping ConfigurationSystem I/O Address System Memory Catalog System Memory CatalogDisplay Memory Expansion Environmental Requirements Battery PackEnergy Diskette Drive Hard Drives Capacity Per Drive Formatted Logical ConfigurationHard Drives Seek TimesRotational Speed 24× CD Drive DimensionsCD Drive Typical Transfer RateConnector Pin Assignments Conditioning a Battery Pack Battery Pack Operating TimeIncreasing Battery Pack Operating Time Disposing of a Used Battery PackTroubleshooting Follow the Preliminary StepsPreliminary Steps Run Computer CheckupProbable Cause Power-On Self Test PostRunning Post Recommended ActionView System Information Inspect Compaq DiagnosticsPerform Computer Checkup Test Contacting Compaq Support Shipping PreparationClearing the Power-on Password Remove the Palmrest Cover with Touch PadDiagnostic Error Codes Select error codes by number or typeTroubleshooting Without Diagnostics Before Replacing PartsSolving Minor Problems Solving PC Card Problems Solving Power Problems