HP 402 G1 manual Under Windows System, click Run

Page 69

Table 7-1Solving General Problems (continued)

Poor performance.

Cause

Solution

 

 

 

 

3.

Make sure the processor heat sink is installed properly.

 

 

Hard drive is full.

Transfer data from the hard drive to create more space on the

 

hard drive.

 

 

Low on memory.

Add more memory.

 

 

Hard drive fragmented.

Defragment hard drive.

 

 

Program previously accessed did not release reserved memory

Restart the computer.

back to the system.

 

 

 

 

Virus resident on the hard drive.

Run virus protection program.

 

 

Too many applications running.

In Windows 8:

 

1.

On the Start screen, right-click, and then select the All apps

 

 

icon.

 

2.

Under Windows System, click Run.

 

3.

Type msconfig, and then press Enter.

 

4.

On the Startup tab of the System Configuration Utility, clear

 

 

applications that you do not want to launch automatically,

 

 

and the click OK.

 

 

 

Some software applications, especially games, are stressful on

1.

Lower the display resolution for the current application or

the graphics subsystem.

 

consult the documentation that came with the application

 

 

for suggestions on how to improve performance by

 

 

adjusting parameters in the application.

 

2.

Add more memory.

 

3.

Upgrade the graphics solution.

 

 

Cause unknown.

Restart the computer.

 

 

 

Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing).

Cause

Solution

 

 

 

Processor thermal protection activated:

1.

Ensure that the computer air vents are not blocked and the

A fan may be blocked or not turning.

 

processor cooling fan is running.

2.

Open the access panel, press the power button, and see if

OR

 

the processor fan (or other system fan) spins. If the fan does

 

 

The heat sink is not properly attached to the processor.

 

not spin, make sure the fan cable is plugged onto the

 

system board header.

 

 

 

3.

If fan a plugged in and not spinning, replace it.

 

 

 

Solving general problems 61

Image 69
Contents Maintenance & Service Guide Product notice Iii Safety warning noticeIv Safety warning notice Table of contents System board callouts Troubleshooting without diagnostics103 100104 Vii107 106110 ViiiStandard configuration features Product featuresDrive configuration may vary by model Standard configuration featuresProduct features Rear panel componentsSerial number location Activating and customizing the software Downloading Windows 8 updatesActivating and customizing the software in Windows Activating the Windows operating systemIllustrated parts catalog Major componentsIllustrated parts catalog Front bezel Fan sink Power supply, 250 W Processors Item Component Access panelMiscellaneous parts Miscellaneous partsHard drives Mass storage devicesTB, 7200 rpm, 3.5 inch 500-GB, 7200 rpm, 3.5 inch Optical driveSata hard drives Serial ATA Hard Drive CharacteristicsSata hard drive cables Sata data cableElectrostatic discharge information Smart ATA drivesGenerating static Preventing electrostatic damage to equipmentGrounding the work area Personal grounding methods and equipmentStatic Shielding Protection Levels Method VoltageRecommended materials and equipment Operating guidelinesCleaning the computer case General cleaning safety precautionsCleaning the keyboard Routine careCleaning the display Service considerationsCleaning the mouse Tools and software requirementsCables and connectors Lithium coin cell batteryHard drives Preparing to disassemble the computer Removal and replacement proceduresAccess panel Installing and removing drives Removing a slim optical disc driveDescription Page Page Installing a slim optical disc drive Page Removing and replacing a 3.5-inch hard drive Remove the access panel see Access panel onPage Page Page To remove the front bezel Front bezelPage Remove the access panel see Access panel on Memory MemoryGB memory module PC3-12800 4GB memory module PC3-12800 Page Expansion cards Page Fan Page RTC battery RTC batteryFan sink Page Before removing the processor, follow these steps ProcessorPage Power supply Page To remove the system board System boardSystem board Updating Smbios InformationSetup Field Name Comment Label System ID SetupSys Bd Label Component System board calloutsRTC battery Front I/O USB connectorNetwork connector and USB VGA connectorComputer Setup F10 Utilities Computer Setup F10 UtilityUsing Computer Setup F10 Utilities Computer Setup F10 Utility1Computer Setup F10 Utility 2Computer Setup-File Computer Setup-File3Computer Setup-Storage Computer Setup-Storage4Computer Setup-Security Computer Setup-SecurityMaster Boot Record Network BootDevice Security USB SecuritySystem Security these System SecurityDriveLock Security Secure Boot ConfigurationLegacy Support to disabled 5Computer Setup-Power Computer Setup-Power6Computer Setup-Advanced for advanced users Computer Setup-AdvancedVGA Configuration AMT Configuration PCI SERR# Generation. Default is enabledBus Options Device OptionsRecovering the configuration settings Safety and comfort Before you call for technical support Troubleshooting without diagnosticsHelpful hints Solving general problems Solving general problems1Solving General Problems Computer date and time display is incorrect Cause SolutionThere is no sound or sound volume is too low Cause Solution Cause SolutionCannot remove computer cover or access panel Cause Solution Poor performance Cause SolutionUnder Windows System, click Run Solution Solving power problems Solving power problems2Solving Power Problems Power supply shuts down intermittently Cause Solution3Solving Hard Drive Problems Solving hard drive problemsSolving hard drive problems 4Solving Media Card Reader Problems Solving media card reader problemsCan not write to the media card Cause Computer’s software is used to safely eject the cardSolving display problems Solving display problems5Solving Display Problems Blank screen no video Cause SolutionScreen resolution Image is not centered Cause Solution Dim characters Cause SolutionSelect the monitor’s Auto-Adjustment option No Connection, Check Signal Cable displays on screen CauseOut of Range displays on screen Cause Monitor’s on-screen display menuSolving audio problems Solving audio problems6Solving Audio Problems There is no sound or sound volume is too low Cause Sound from headphones is not clear or muffled CauseSelect Device Manager Line-in jack is not functioning properly CauseSolving printer problems Solving printer problems7Solving Printer Problems 8Solving Keyboard Problems Solving keyboard and mouse problems9Solving Mouse Problems Solving hardware installation problemsShut down the computer using the keyboard ComponentsComputer will not start Cause Solution 10Solving Hardware Installation ProblemsSolving network problems Solving network problems11Solving Network Problems Power SavingsWake-on-LAN feature is not functioning Cause Solution Network status link light never flashes Cause SolutionAdvanced Device Options S5 Wake on LAN Diagnostics reports a failure Cause Solution Correct operating modeSettings for the board Cable CorrectlyNew network card will not boot Cause Solution Solving memory problems Solving memory problems12Solving Memory Problems 13Solving Processor Problems Solving processor problemsSome fans only operate when needed Make sure the processor heat sink is installed properlySolving CD-ROM and DVD problems Solving CD-ROM and DVD problems14Solving CD-ROM and DVD Problems Computer Setup utilityCannot eject compact disc tray-load unit Cause Movie will not play in the DVD drive Cause SolutionSolving front panel component problems Solving USB flash drive problemsSolving USB flash drive problems 15Solving USB Flash Drive ProblemsSet to Enabled in Security USB Security Solving internet access problemsUnable to connect to the Internet Cause Solution Click Internet OptionsSolving software problems Solving software problemsContacting customer support HP PC Hardware Diagnostics Why run HP PC Hardware Diagnostics UefiHow to access and run HP PC Hardware Diagnostics Uefi Diagnostic section, click HP Uefi Support Environment Backup and Recovery Backup and recovery in WindowsBacking up your information Performing a system recovery To recover information you previously backed upFollow the on-screen instructions Backup and Recovery Using f11 recovery tools Post Error Messages Post Error MessagesPost Numeric Codes and Text Messages 1Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Reseat power supply fan Flash Screen Image Corrupted Flash Screen image has errorsReconfigure card resources and/or run Computer Setup or Windows utilitiesEmulation to IDE, and select File Save Try a different USB key device for Inventory error during MEBx executionSystem Bios version Functionality contained in the system BiosGeneral error during MEBx execution System Bios and ME firmware2Diagnostic front panel LEDs and audible codes Interpreting Post diagnostic front panel LEDsPossible Cause Recommended Action White Power LED On ActivityPossible Cause Recommended Action Interpreting Post diagnostic front panel LEDsRecovery Mode section of the Desktop Red Power LED flashes sevenInstall a TXT capable processor Previously enabled on thisPassword Security and Resetting Cmos Establishing a Setup or Power-on passwordEstablishing a Setup or Power-on password Resetting the Setup and Power-on password Clearing and resetting the CmosPassword Security and Resetting Cmos Page Power Cord Set Requirements Japanese Power Cord RequirementsGeneral requirements Country-specific requirements Country-specific requirementsCountry Accrediting Agency Appendix B Statement of Volatility Statement of VolatilityEnter the F10 setup utility Specifications SpecificationsAppendix C Specifications Index 103 Problems All-in One chassis Fan Password Fan sinkNetwork Setup password 103 Power Software Printer Problems Product ID location Removal and replacement
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