HP Pro 4300 manual Solving Front Panel Component Problems, Solving Internet Access Problems

Page 151

Solving Front Panel Component Problems

If you encounter problems with devices connected to the front panel, refer to the common causes and solutions listed in the following table.

A USB device, headphone, or microphone is not recognized by the computer.

Cause	Solution

Device is not properly connected.	1.	Turn off the computer.
	2.	Reconnect the device to the front of the computer and
		restart the computer.

The device does not have power.	If the USB device requires AC power, be sure one end is
	connected to the device and one end is connected to a live
	outlet.

The correct device driver is not installed.	1.	Install the correct driver for the device.
	2.	You might need to reboot the computer.

The cable from the device to the computer does not work.	1.	If possible, replace the cable.
	2.	Restart the computer.

The device is not working.	1.	Replace the device.
	2.	Restart the computer.

USB ports on the computer are disabled in Computer Setup.	Run the Computer Setup utility and ensure that the USB
	ports are set to Enabled in Security > USB Security.

Solving Internet Access Problems

If you encounter Internet access problems, consult your Internet Service Provider (ISP) or refer to the common causes and solutions listed in the following table.

Unable to connect to the Internet.

Cause	Solution

Internet Service Provider (ISP) account is not set up	Verify Internet settings or contact your ISP for assistance.
properly.

Web browser is not set up properly.	Verify that the Web browser is installed and set up to work
	with your ISP.

Cable/DSL modem is not plugged in.	Plug in cable/DSL modem. You should see a “power” LED
	light on the front of the cable/DSL modem.

Cable/DSL service is not available or has been interrupted	Try connecting to the Internet at a later time or contact your
due to bad weather.	ISP. (If the cable/DSL service is connected, the “cable” LED
	light on the front of the cable/DSL modem will be on.)

The CAT5 UTP cable is disconnected.	Connect the CAT5 UTP cable between the cable modem
	and the computers’s RJ-45 connector. (If the connection is
	good, the “PC” LED light on the front of the cable/DSL
	modem will be on.)

Solving Front Panel Component Problems 143

Image 151

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 Standard Configuration Features Product Features1Front Panel Components Front Panel Components2Rear Panel Components Rear Panel ComponentsSerial Number Location 4Serial Number and Product ID Location Product FeaturesActivating 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 Click Settings Change PC Settings Downloading Windows 8 updatesComputer Setup F10 Utilities Computer Setup F10 Utility1Computer Setup F10 Utility Using Computer Setup F10 Utilities2Computer Setup-File Computer Setup-FileOptionDescription Computer Setup-Storage3Computer Setup-Storage Sata DefaultsMax eSATA Speed Removable Media BootStorage Options ESATA Port Sata EmulationShortcut to Temporarily Override Boot Order Boot OrderDPS Self-Test 4Computer Setup-Security Computer Setup-SecuritySystem IDs Network BootMaster Boot Record Slot SecuritySystem Security Configuration Secure BootDriveLock Security 5Computer Setup-Power Computer Setup-Power6Computer Setup-Advanced for advanced users Computer Setup-AdvancedOption Heading Power-On Options Device Options Bios Power-OnOnboard Devices Bus OptionsVGA Configuration Recovering the Configuration SettingsAMT Configuration Sata Hard Drive Cables Serial ATA Sata Drive Guidelines and FeaturesSerial ATA Hard Drive Characteristics Sata Hard DrivesSmart ATA Drives Small Form Factor SFF Chassis DesignationsRelative Humidity Event 55% 40% 10% Electrostatic Discharge InformationGenerating Static Preventing Electrostatic Damage to EquipmentStatic Shielding Protection Levels Personal Grounding Methods and EquipmentGrounding the Work Area Recommended Materials and EquipmentOperating Guidelines Routine Care General Cleaning Safety PrecautionsCleaning the Computer Case Cleaning the KeyboardPower Supply Fan Service ConsiderationsCleaning the Monitor Cleaning the MouseHard Drives Cables and ConnectorsTools and Software Requirements ScrewsLithium Coin Cell Battery Spare parts Illustrated parts catalogComputer major components Front I/O and power switch assembly Description Spare part number Access panelPower supply Heat sink includes replacement thermal materialKeyboard Description Spare part numberOptical drives Expansion cardsMouse 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 1Serial Number and Product ID Location Preparation for DisassemblyPage Description Spare part number Access panel 636924-001 Computer Access PanelDescription Spare part number Front bezel 695080-001 Front BezelBezel Blanks System Board Connections System Board Connector System Board Label Color Component1System Board Connections DIMMs Installing Additional MemoryDDR3-SDRAM DIMMs Populating Dimm Sockets Installing DIMMsPage 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 Mounting Screw Device 3Extra Mounting ScrewsRemoving 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 Description Spare part number Baffle 636921-001 BaffleDescription Spare part number Front fan assembly 636922-001 Front Fan AssemblyRemove the chassis fan Front Fan Assembly on Front I/O, Power Switch AssemblyDescription Spare part number Speaker 636925-001 SpeakerDescription Spare part number Heat sink 636919-001 Heat sink47Removing the heat sink screws Heat sink Page Processor Page Pwrcmd Power SupplyPower supply connector label System board connector 4Power supply cable system board connectorSystem Board Page Battery Type 2 Battery Holder Type 1 Battery HolderType 3 Battery Holder Using the Small Form Factor Computer in a Tower Orientation HP/Kensington MicroSaver Security Cable Lock Installing a Security LockPadlock Front Bezel Security Page Japanese Power Cord Requirements Power Cord Set RequirementsGeneral Requirements Country Accrediting Agency Country-Specific RequirementsPost Error Messages Test under Storage DPS Self-test Post Numeric Codes and Text MessagesTable B-1Numeric Codes and Text Messages Control panel message Description Recommended actionActivity Blinks Possible Cause Table B-2Diagnostic Front Panel LEDs and Audible CodesActivity Blinks Possible Cause Recommended Action Safety and Comfort Before You Call for Technical Support Troubleshooting Without DiagnosticsRefer to Helpful Hints on page 108 in this guide Helpful HintsPage Computer will not respond to keyboard or mouse Cause Solving General ProblemsTable C-1Solving General Problems Computer date and time display is incorrect Cause SolutionAdvanced Device Options There is no sound or sound volume is too low Cause SolutionCannot remove computer cover or access panel Cause Poor performance Cause SolutionUnder Windows System, click Run All apps iconCause Solution Table C-2Solving Power Problems Solving Power ProblemsPower supply shuts down intermittently Cause Solution Some models, is set to the appropriate voltage. Proper Table C-3Solving Hard Drive Problems Solving Hard Drive ProblemsDevice Configuration Nonsystem disk/NTLDR missing message Cause SolutionComputer will not boot from hard drive Cause Solution Storage Boot OrderComputer 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 Adjust screen resolution Solving Display ProblemsTable C-5Solving Display Problems Blank screen no video Cause SolutionDim 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 Table C-6Solving Audio Problems Solving 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 turn on Cause Solution Solving Printer ProblemsTable C-7Solving Printer Problems Printer will not print Cause SolutionPrinter prints garbled information Cause Solution Table C-8Solving Keyboard Problems Solving Keyboard and Mouse ProblemsEnter Table C-9Solving Mouse ProblemsSecurity USB Security Solving Hardware Installation ProblemsTable C-10Solving Hardware Installation Problems Control Panel , and then select Device ManagerComputer will not start Cause Solution Table C-11Solving Network Problems Solving Network ProblemsManager Network status link light never flashes Cause SolutionDiagnostics reports a failure Cause Solving Memory Problems Insufficient memory error during operation Cause Solution Table C-12Solving Memory ProblemsOut of memory error Cause Solution Memory count during Post is wrong Cause SolutionTable C-14Solving CD-ROM and DVD Problems Solving Processor ProblemsSolving CD-ROM and DVD Problems Table C-13Solving Processor Problems Movie will not play in the DVD drive Cause Solution Security Network BootCannot eject compact disc tray-load unit Cause Solving USB Flash Drive ProblemsUSB flash drive not found identified Cause Solution Table C-15Solving USB Flash Drive ProblemsSystem will not boot from USB flash drive Cause Solution Unable to connect to the Internet Cause Solution Solving Front Panel Component ProblemsSolving Internet Access Problems Ports are set to Enabled in Security USB SecurityClick Internet Options Select Start Control PanelSolving Software Problems Appendix C Troubleshooting Without Diagnostics Contacting Customer Support Why run HP PC Hardware Diagnostics HP PC Hardware DiagnosticsHow to access and run HP PC Hardware Diagnostics Downloading HP PC Hardware Diagnostics to a USB device System Recovery Backup and RecoveryRestoring and recovering in Windows System RestoreSystem Recovery when Windows is responding System Recovery when Windows is not responding Creating recovery media Using recovery media Backing up your information Backup and recovery in WindowsUsing the Windows recovery tools Performing a system recoveryUsing f11 recovery tools Cmos Password Security and ResettingResetting the Password Jumper Figure F-1 Cmos button Clearing and Resetting the CmosPage Drive Protection System DPS Select Storage DPS Self-Test Accessing DPS Through Computer SetupTable H-1Specifications SpecificationsAppendix H Specifications Cmos IndexDVI-D Sata

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