Samsung N640CJ2024/EHQ Troubleshooting, Operating Problem, Computer is not behaving as expected

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Troubleshooting

If you ever have difficulty running your computer, follow these steps:

1.Consult the following sections for advice on how to handle system problems.

2.If steps 1 do not help you to resolve the problem, contact your reseller.

Operating Problem

This section tells you what to do if you have problems running your computer. If any problem persists after you take corrective action, contact your reseller for assistance.

The computer does nothing when you turn it on.

Has the battery run down? Connect the power cord to get power and recharge the battery. Try turning on the computer again.

The computer is not behaving as expected.

Operating your computer at high speed with the cache enabled may cause syste instability and incompatibility with some applications. If your computer is not behaving as expected and no error messages appear, disable the External Cache setting in the Memory Cache field of System Setup.

Nothing appears on the LCD panel when you turn on the computer.

Adjust the brightness on a TFT LCD. Are you using an external monitor? If so, press <Fn+F5> to return to the LCD panel.

Nothing appears on the external monitor when you switch the display to it.

Is the monitor properly connected to the computer? Is the monitor’s power cord connected to an AC wall outlet? Check the brightness and contrast controls on the monitor. Does the program appear on the LCD panel instead of the external monitor? If so, press <Fn+F5> to switch to the monitor. Try turning the monitor off and on again.

The external monitor displays flashes or waves.

Check the cables between the monitor and the computer. Are they properly installed?

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Contents Special Features of the User’s Manual Using Your DocumentationUsing the Software User Documentation LCD Introducing Your ComputerBack View of Computer Attaching the AC Adapter Using Your Computer for the First TimeTurning On the Computer Turning On the Computer’s PowerTurning Off Your Computer Adjusting the LCD DisplayAPMAdvanced Power Management mode Understanding PostRestarting Your Computer ACPIAdvanced Configuration and Power Interface modeTips for Using Your Computer Traveling with Your Computer Storing the Computer for Long Periods Handling SpillsKeyboard Using the KeyboardNumeric Keypad Using the Embeded Numeric KeypadFn Key Function Combination Using Special Function KeysDescription of Special Function Keys Using the Keyboard Mouse Action How To Using the TouchpadUsing the Touchpad Using the Touchpad System Status Lights Reading the System Status LightsReading the System Status Lights Peripheral Connectors Connecting Peripheral DevicesIconConnector Connecting Peripheral DevicesConnecting Peripheral Devices To remove a device from the Flex-Bay Using the Flex-BaySetting the IDE type Drive SwitchRemoving a Device from the Flex-Bay To install a device in the Flex-BayMagnetic fields can destroy the information on a disk Using the Floppy DriveUsing the Floppy Drive Using the CD-ROM Drive Using the CD-ROM DriveUsing the CD-ROM Drive Installing the Power DVD Player MPEG-2 Software Using the DVD-ROM DriveRemoving the Hard Drive Using the Hard DriveRemoving the Hard Drive Installing a Hard DriveCharging the Battery Using the BatteryRemoving the Battery Safely Using the BatteryRemoving the Battery Pack Installing the BatteryUsing the Battery Gauge Monitoring the Battery ChargeSet options under Battery Status and Alarm Settings Using PowerProfiler to Monitor the BatteryCondition Action to Take Battery WarningsBattery Warnings Sens Modem Naming Convention Using the ModemIf you use a Windows Communication Program Precautions before useIf you use a simple terminal program Description of 56K SpecificationInstall the Modem Driver Installing the Modem Driver in Windows MeDeleting the Modem Driver Confirming Installation of the Modem DriverSelecting a Country Installing the Modem Driver in Windows 95/98 Check if Country is selected correctly Command mode Modem CommandsWhat are AT commands? Before Using AT CommandsDisplay the result value Using AT commandsUsing Command Mode during Communications ATO Basic AT CommandsATS0? Menu Function Using System SetupStarting System Setup System Setup MenusNavigation Alternate Function Key System Setup Navigation KeysMain Menu Using System Setup Using System Setup Advanced Menu Security Menu Power Menu Using System Setup Exit Menu Boot MenuUsing System Setup Creating a Password Using System SecuritySystem Passwords Deleting a Password Locking the Keyboard Requiring a Boot PasswordLocking the Hard Drive Boot Sector Maximum Power Saving Mode Using Power Management OptionsRest Mode Standby ModeRest Mode Precautions Using PowerProfiler To create Fdisk Creating a Save to Disk PartitionTo create Phdisk Insert the System Recovery CD-ROM To reinstall your operating systemTo reinstall your original applications and drivers Resolution and Color Depth Video Features and ConfigurationVideo Driver Capabilities Configuring Display FeaturesSelecting a Monitor Type Changing Color Depth and Resolution Changing the Video Driver Using the TV-Out PortClick OK and follow the prompts that appear on the screen Setting Dual View mode Using Dual View modeLimits and cautions of using Dual View mode Three Displays Using several display devicesPrimary Limits Secondary Two DisplaysLimits on Video Driver while using Dual View mode Maintaining PC Cards Working with PC CardsWindows 98/ Me Using PC CardsWindows NT Working with PC Cards AC Adapter Using OptionsBattery Pack Memory Modules Auto AdapterInstalling a Memory Module Before You Install MemoryRemoving the Memory Module Compartment Door Hard Drives Installing a Memory ModuleCD-ROM Drive Setting the switch on 2nd HDDSuperdisk LS-120 Drive DVD-ROM Drive ModuleZIP Drive Inserting a 120MB LS-120 diskette into the LS-120 drive Docking OptionsIRQs About Drivers and System ResourcesDrivers IRQsService Pack 4 for Windows NT About Drivers and System Resources Computer is not behaving as expected TroubleshootingOperating Problem Computer does nothing when you turn it onPC Card does not work correctly Battery power seems to run out faster than expectedWhen using a PBX phone system I cant dial on my modem Infrared ProblemsModem Problems Troubleshooting Environment SpecificationsHardware Specifications DimensionExternal AC Adapter Lithium-Ion Smart BatteryNi-MH Dumb Battery CD-ROM AbbreviationsPcmcia Voltage collector current Universal serial busVolt Voltage alternating currentAC adapter BootBoot disk GlossaryCmos memory DMA direct memory accessCache memory CardBusIRQ interrupt request line Floppy diskHard drive AddressOperating system RAM random access memoryMBmegabyte MegabitSector ResolutionRefresh rate ROM read-only memoryDiskette a Recording the Computer Hardware ConfigurationDisabled Other Parallel port Enabled Mode Output onlyDisabled 42F8, IRQ 2E8, IRQ 3 Disabled Disabled Bi-directionalSecurity Menu Page Important Safety Instruction Iii Federal Communications Commission FCC Federal Communications Commission FCC Part 68 Statement Canadian Radio Interference Regulations CTR21 StatementClass 1 Laser Productlaserschutzklasse 1 Produkt Country Accredited Applicable Agency Power Cord RequirementCountry-Specific Power cord Set Requirements General RequirementsSEV

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