HP Pro 4300 manual Table C-1Solving General Problems

Page 118

Solving General Problems

You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

Table C-1Solving General Problems

Computer appears locked up and will not turn off when the power button is pressed.

Cause

Solution

Software control of the power switch is not functional.

1.Press and hold the power button for at least four seconds until the computer turns off.

2.Disconnect the power cord from the electrical outlet.

Computer will not respond to keyboard or mouse.

Cause

Solution

Computer is in Sleep state.

To resume from Sleep state, press the power button.

CAUTION: When attempting to resume from Sleep state, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.

System has locked up.

Restart computer.

 

 

Computer date and time display is incorrect.

 

 

 

Cause

Solution

 

 

RTC (real-time clock) battery may need to be replaced.

Reset the date and time under Control Panel (Computer

NOTE: Connecting the computer to a live AC outlet

Setup can also be used to update the RTC date and time). If

the problem persists, replace the RTC battery. See the

prolongs the life of the RTC battery.

Removal and Replacement section for instructions on

 

installing a new battery, or contact an authorized dealer or

 

reseller for RTC battery replacement.

 

To access Control Panel in Windows 7, select Start, and

 

then select Control Panel.

 

To access Control Panel in Windows 8, from the Start

 

screen, type c, and then select Control Panel from the list of

 

applications.

 

 

110 Appendix C Troubleshooting Without Diagnostics

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Contents Maintenance and Service Guide HP Compaq Pro 4300 Small Form Factor Business PC About This Book Table of contents Smart ATA Drives 101 107 163 Product Features Standard Configuration FeaturesFront Panel Components 1Front Panel ComponentsRear Panel Components 2Rear Panel Components4Serial Number and Product ID Location Product Features Serial Number LocationActivating and customizing the software in Windows Activating and Customizing the SoftwareActivating the Windows operating system Installing or upgrading device drivers Downloading Windows 7 updatesCustomizing the monitor display Downloading Windows 8 updates Click Settings Change PC SettingsComputer Setup F10 Utility Computer Setup F10 UtilitiesUsing Computer Setup F10 Utilities 1Computer Setup F10 UtilityComputer Setup-File 2Computer Setup-FileSata Defaults Computer Setup-Storage3Computer Setup-Storage OptionDescriptionSata Emulation Removable Media BootStorage Options ESATA Port Max eSATA SpeedShortcut to Temporarily Override Boot Order Boot OrderDPS Self-Test Computer Setup-Security 4Computer Setup-SecuritySlot Security Network BootMaster Boot Record System IDsSystem Security Configuration Secure BootDriveLock Security Computer Setup-Power 5Computer Setup-Power6Computer Setup-Advanced for advanced users Computer Setup-AdvancedOption Heading Power-On Options Bus Options Bios Power-OnOnboard Devices Device OptionsVGA Configuration Recovering the Configuration SettingsAMT Configuration Sata Hard Drives Serial ATA Sata Drive Guidelines and FeaturesSerial ATA Hard Drive Characteristics Sata Hard Drive CablesSmart ATA Drives Chassis Designations Small Form Factor SFFPreventing Electrostatic Damage to Equipment Electrostatic Discharge InformationGenerating Static Relative Humidity Event 55% 40% 10%Recommended Materials and Equipment Personal Grounding Methods and EquipmentGrounding the Work Area Static Shielding Protection LevelsOperating Guidelines Cleaning the Keyboard General Cleaning Safety PrecautionsCleaning the Computer Case Routine CareCleaning the Mouse Service ConsiderationsCleaning the Monitor Power Supply FanScrews Cables and ConnectorsTools and Software Requirements Hard DrivesLithium Coin Cell Battery Spare parts Illustrated parts catalogComputer major components Heat sink includes replacement thermal material Description Spare part number Access panelPower supply Front I/O and power switch assemblyExpansion cards Description Spare part numberOptical drives KeyboardMouse Sequential part number listing Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Spare parts Preparation for Disassembly 1Serial Number and Product ID LocationPage Computer Access Panel Description Spare part number Access panel 636924-001Front Bezel Description Spare part number Front bezel 695080-001Bezel Blanks System Board Connections System Board Connector System Board Label Color Component1System Board Connections DIMMs Installing Additional MemoryDDR3-SDRAM DIMMs Installing DIMMs Populating Dimm SocketsPage Graphics cards for models with Windows Removing or Installing an Expansion CardOther boards Remove the access panel Computer Access Panel on Page Page Page Page Page Cable Management Description Spare part number Optical drives DrivesDrive cables Drive Positions Installing and Removing Drives2Drive Positions 3Extra Mounting Screws Mounting Screw DeviceRemoving an Internal 5.25-inch Drive Rotate the drive cage back down to its normal position Installing an Optical Drive into the 5.25-inch Drive Bay 24Connecting the Power and Data Cables Drives Removing an Internal 3.5-inch Drive Page Installing a Drive into the 3.5-inch Internal Drive Bay 33Rotating the Drive Cage Down Drives Page 36Raising the Power Supply Drives Page Page Baffle Description Spare part number Baffle 636921-001Front Fan Assembly Description Spare part number Front fan assembly 636922-001Front I/O, Power Switch Assembly Remove the chassis fan Front Fan Assembly onSpeaker Description Spare part number Speaker 636925-001Heat sink Description Spare part number Heat sink 636919-00147Removing the heat sink screws Heat sink Page Processor Page Power Supply Pwrcmd4Power supply cable system board connector Power supply connector label System board connectorSystem Board Page Battery Type 1 Battery Holder Type 2 Battery HolderType 3 Battery Holder Using the Small Form Factor Computer in a Tower Orientation Installing a Security Lock HP/Kensington MicroSaver Security Cable LockPadlock Front Bezel Security Page Japanese Power Cord Requirements Power Cord Set RequirementsGeneral Requirements Country-Specific Requirements Country Accrediting AgencyPost Error Messages Control panel message Description Recommended action Post Numeric Codes and Text MessagesTable B-1Numeric Codes and Text Messages Test under Storage DPS Self-testTable B-2Diagnostic Front Panel LEDs and Audible Codes Activity Blinks Possible CauseActivity Blinks Possible Cause Recommended Action Troubleshooting Without Diagnostics Safety and Comfort Before You Call for Technical SupportHelpful Hints Refer to Helpful Hints on page 108 in this guidePage Computer date and time display is incorrect Cause Solution Solving General ProblemsTable C-1Solving General Problems Computer will not respond to keyboard or mouse CausePoor performance Cause Solution There is no sound or sound volume is too low Cause SolutionCannot remove computer cover or access panel Cause Advanced Device OptionsAll apps icon Under Windows System, click RunCause Solution Table C-2Solving Power Problems Solving Power ProblemsPower supply shuts down intermittently Cause Solution Some models, is set to the appropriate voltage. Proper Solving Hard Drive Problems Table C-3Solving Hard Drive ProblemsStorage Boot Order Nonsystem disk/NTLDR missing message Cause SolutionComputer will not boot from hard drive Cause Solution Device ConfigurationComputer seems to be locked up Cause Solution Table C-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 card Blank screen no video Cause Solution Solving Display ProblemsTable C-5Solving Display Problems Adjust screen resolutionDim characters Cause Solution No Connection, Check Signal Cable displays on screen Cause Image is not centered Cause SolutionSelect ImageControl/ Horizontal Position or Vertical Out of Range displays on screen Cause Certain typed symbols do not appear correct Cause Solving Audio Problems Table C-6Solving Audio ProblemsThere is no sound or sound volume is too low Cause Sound from headphones is not clear or muffled CauseLine-in jack is not functioning properly Cause Printer will not print Cause Solution Solving Printer ProblemsTable C-7Solving Printer Problems Printer will not turn on Cause SolutionPrinter prints garbled information Cause Solution Solving Keyboard and Mouse Problems Table C-8Solving Keyboard ProblemsTable C-9Solving Mouse Problems EnterControl Panel , and then select Device Manager Solving Hardware Installation ProblemsTable C-10Solving Hardware Installation Problems Security USB SecurityComputer will not start Cause Solution Solving Network Problems Table C-11Solving Network ProblemsNetwork status link light never flashes Cause Solution ManagerDiagnostics reports a failure Cause Solving Memory Problems Memory count during Post is wrong Cause Solution Table C-12Solving Memory ProblemsOut of memory error Cause Solution Insufficient memory error during operation Cause SolutionTable C-13Solving Processor Problems Solving Processor ProblemsSolving CD-ROM and DVD Problems Table C-14Solving CD-ROM and DVD ProblemsSecurity Network Boot Movie will not play in the DVD drive Cause SolutionSolving USB Flash Drive Problems Cannot eject compact disc tray-load unit CauseUSB flash drive not found identified Cause Solution Table C-15Solving USB Flash Drive ProblemsSystem will not boot from USB flash drive Cause Solution Ports are set to Enabled in Security USB Security Solving Front Panel Component ProblemsSolving Internet Access Problems Unable to connect to the Internet Cause SolutionSelect Start Control Panel Click Internet OptionsSolving Software Problems Appendix C Troubleshooting Without Diagnostics Contacting Customer Support HP PC Hardware Diagnostics Why run HP PC Hardware DiagnosticsHow to access and run HP PC Hardware Diagnostics Downloading HP PC Hardware Diagnostics to a USB device System Restore Backup and RecoveryRestoring and recovering in Windows System RecoverySystem Recovery when Windows is responding System Recovery when Windows is not responding Creating recovery media Using recovery media Backup and recovery in Windows Backing up your informationPerforming a system recovery Using the Windows recovery toolsUsing f11 recovery tools Password Security and Resetting CmosResetting the Password Jumper Clearing and Resetting the Cmos Figure F-1 Cmos buttonPage Drive Protection System DPS Accessing DPS Through Computer Setup Select Storage DPS Self-TestSpecifications Table H-1SpecificationsAppendix H Specifications Index CmosDVI-D Sata
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