HP 402 G1 manual Solving processor problems, 13Solving Processor Problems

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

Cause

Solution

 

 

 

Memory is installed incorrectly or is bad.

1.

Reseat DIMMs. Power on the system.

 

2.

Replace DIMMs one at a time to isolate the faulty module.

 

3.

Replace third-party memory with HP memory.

 

4.

Replace the system board.

 

 

 

Solving processor problems

If you encounter processor problems, common causes and solutions are listed in the following table.

Table 7-13Solving Processor Problems

Poor performance is experienced.

Cause

Solution

 

 

 

Processor is hot.

1.

Make sure the airflow to the computer is not blocked.

 

2.

Make sure the fans are connected and working properly

 

 

(some fans only operate when needed).

 

3.

Make sure the processor heat sink is installed properly.

 

Power LED flashes Red three times, once every second, followed by a two second pause.

 

 

Cause

Solution

Processor is not seated properly or not installed.

1.Check to see that the processor is present.

2.Reseat the processor.

Power LED flashes Red eleven times, once every second, followed by a two second pause.

Cause

Solution

The current processor does not support a feature previously enabled on this system.

1.Install a TXT (Trusted Execution Technology) capable processor.

2.Disable TXT in the Computer Setup (F10) utility.

3.Reinstall the original processor.

82 Chapter 7 Troubleshooting without diagnostics

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Contents Maintenance & Service Guide Product notice Safety warning notice IiiIv Safety warning notice Table of contents Troubleshooting without diagnostics System board callouts104 100103 Vii110 106107 ViiiDrive configuration may vary by model Product featuresStandard configuration features Standard configuration featuresProduct features Rear panel componentsSerial number location Activating and customizing the software in Windows Downloading Windows 8 updatesActivating and customizing the software Activating the Windows operating systemIllustrated parts catalog Major componentsIllustrated parts catalog Miscellaneous parts Item Component Access panelFront bezel Fan sink Power supply, 250 W Processors Miscellaneous partsTB, 7200 rpm, 3.5 inch 500-GB, 7200 rpm, 3.5 inch Mass storage devicesHard drives Optical driveSata hard drive cables Serial ATA Hard Drive CharacteristicsSata hard drives Sata data cableGenerating static Smart ATA drivesElectrostatic discharge information Preventing electrostatic damage to equipmentStatic Shielding Protection Levels Personal grounding methods and equipmentGrounding the work area Method VoltageOperating guidelines Recommended materials and equipmentCleaning the keyboard General cleaning safety precautionsCleaning the computer case Routine careCleaning the mouse Service considerationsCleaning the display Tools and software requirementsCables and connectors Lithium coin cell batteryHard drives Removal and replacement procedures Preparing to disassemble the computerAccess panel Installing and removing drives Removing a slim optical disc driveDescription Page Page Installing a slim optical disc drive Page Remove the access panel see Access panel on Removing and replacing a 3.5-inch hard drivePage Page Page Front bezel To remove the 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 Processor Before removing the processor, follow these stepsPage Power supply Page System board To remove the system boardUpdating Smbios Information System boardSystem ID Setup Setup Field Name Comment LabelSystem board callouts Sys Bd Label ComponentNetwork connector and USB Front I/O USB connectorRTC battery VGA connectorComputer Setup F10 Utility Computer Setup F10 UtilitiesUsing Computer Setup F10 Utilities Computer Setup F10 Utility1Computer Setup F10 Utility Computer Setup-File 2Computer Setup-FileComputer Setup-Storage 3Computer Setup-StorageComputer Setup-Security 4Computer Setup-SecurityDevice Security Network BootMaster Boot Record USB SecuritySystem Security these System SecurityDriveLock Security Secure Boot ConfigurationLegacy Support to disabled Computer Setup-Power 5Computer Setup-PowerComputer Setup-Advanced 6Computer Setup-Advanced for advanced usersBus Options PCI SERR# Generation. Default is enabledVGA Configuration AMT Configuration Device OptionsRecovering the configuration settings Troubleshooting without diagnostics Safety and comfort Before you call for technical supportHelpful hints 1Solving General Problems Solving general problemsSolving general problems Computer date and time display is incorrect Cause SolutionCannot remove computer cover or access panel Cause Solution Cause SolutionThere is no sound or sound volume is too low Cause Solution Poor performance Cause SolutionUnder Windows System, click Run Solution 2Solving Power Problems Solving power problemsSolving power problems Power supply shuts down intermittently Cause SolutionSolving hard drive problems 3Solving Hard Drive ProblemsSolving hard drive problems Can not write to the media card Cause Solving media card reader problems4Solving Media Card Reader Problems Computer’s software is used to safely eject the card5Solving Display Problems Solving display problemsSolving display problems Blank screen no video Cause SolutionScreen resolution Dim characters Cause Solution Image is not centered Cause SolutionOut of Range displays on screen Cause No Connection, Check Signal Cable displays on screen CauseSelect the monitor’s Auto-Adjustment option Monitor’s on-screen display menuSolving audio problems Solving audio problems6Solving Audio Problems Select Device Manager Sound from headphones is not clear or muffled CauseThere is no sound or sound volume is too low Cause Line-in jack is not functioning properly CauseSolving printer problems Solving printer problems7Solving Printer Problems Solving keyboard and mouse problems 8Solving Keyboard ProblemsShut down the computer using the keyboard Solving hardware installation problems9Solving Mouse Problems Components10Solving Hardware Installation Problems Computer will not start Cause Solution11Solving Network Problems Solving network problemsSolving 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 Settings for the board Correct operating modeDiagnostics reports a failure Cause Solution Cable CorrectlyNew network card will not boot Cause Solution Solving memory problems Solving memory problems12Solving Memory Problems Some fans only operate when needed Solving processor problems13Solving Processor Problems Make sure the processor heat sink is installed properly14Solving CD-ROM and DVD Problems Solving CD-ROM and DVD problemsSolving CD-ROM and DVD problems Computer Setup utilityMovie will not play in the DVD drive Cause Solution Cannot eject compact disc tray-load unit CauseSolving USB flash drive problems Solving USB flash drive problemsSolving front panel component problems 15Solving USB Flash Drive ProblemsUnable to connect to the Internet Cause Solution Solving internet access problemsSet to Enabled in Security USB Security 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 Numeric Codes and Text Messages Post Error MessagesPost Error Messages 1Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Reconfigure card resources and/or run Flash Screen Image Corrupted Flash Screen image has errorsReseat power supply fan Computer Setup or Windows utilitiesEmulation to IDE, and select File Save Inventory error during MEBx execution Try a different USB key device forGeneral error during MEBx execution Functionality contained in the system BiosSystem Bios version System Bios and ME firmwarePossible Cause Recommended Action White Power LED On Interpreting Post diagnostic front panel LEDs2Diagnostic front panel LEDs and audible codes ActivityInterpreting Post diagnostic front panel LEDs Possible Cause Recommended ActionInstall a TXT capable processor Red Power LED flashes sevenRecovery Mode section of the Desktop 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 Statement of Volatility Appendix B Statement of VolatilityEnter the F10 setup utility Specifications SpecificationsAppendix C Specifications Index Network Setup password 103 Power Software Printer Problems All-in One chassis Fan Password Fan sink103 Problems Product ID location Removal and replacement
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