Solving Memory Problems | HP Pro 4300 manual

Table C-11Solving Network Problems (continued)

Network controller stops working without apparent cause.

Cause

Solution

The cable is not securely connected.

Ensure that the cable is securely attached to the network connector and that the other end of the cable is securely attached to the correct device.

The network controller is defective.	Contact an authorized service provider.

New network card will not boot.

Cause	Solution

New network card may be defective or may not meet industry-standard specifications.

Install a working, industry-standard NIC, or change the boot sequence to boot from another source.

Cannot connect to network server when attempting Remote System Installation.

Cause

Solution

The network controller is not configured properly.

Verify Network Connectivity, that a DHCP Server is present, and that the Remote System Installation Server contains the NIC drivers for your NIC.

System setup utility reports unprogrammed EEPROM.

Cause	Solution

Unprogrammed EEPROM.	Contact an authorized service provider.

Solving Memory Problems

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

CAUTION: Power may still be supplied to the DIMMs when the computer is turned off (depending on the Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a memory module.

For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the computer will not boot the operating system.

NOTE: The memory count will be affected by configurations with the Management Engine (ME) enabled. The ME uses 8MB of system memory in single channel mode or 16MB of memory in dual- channel mode to download, decompress, and execute the ME firmware for Out-of-Band (OOB), third- party data storage, and other management functions.

Solving Memory Problems 137

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HP Pro 4300 manual Solving Memory Problems, Table C-11Solving Network Problems

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 Features 1Front Panel Components Front Panel Components 2Rear Panel Components Rear Panel Components Serial Number Location 4Serial Number and Product ID Location Product Features Activating 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 updates Computer Setup F10 Utilities Computer Setup F10 Utility 1Computer Setup F10 Utility Using Computer Setup F10 Utilities 2Computer Setup-File Computer Setup-File 3Computer Setup-Storage Computer Setup-StorageSata Defaults OptionDescription Storage Options ESATA Port Removable Media BootSata Emulation Max eSATA Speed Shortcut to Temporarily Override Boot Order Boot OrderDPS Self-Test 4Computer Setup-Security Computer Setup-Security Master Boot Record Network BootSlot Security System IDs System Security Configuration Secure BootDriveLock Security 5Computer Setup-Power Computer Setup-Power 6Computer Setup-Advanced for advanced users Computer Setup-AdvancedOption Heading Power-On Options Onboard Devices Bios Power-OnBus Options Device Options VGA Configuration Recovering the Configuration SettingsAMT Configuration Serial ATA Hard Drive Characteristics Serial ATA Sata Drive Guidelines and FeaturesSata Hard Drives Sata Hard Drive Cables Smart ATA Drives Small Form Factor SFF Chassis Designations Generating Static Electrostatic Discharge InformationPreventing Electrostatic Damage to Equipment Relative Humidity Event 55% 40% 10% Grounding the Work Area Personal Grounding Methods and EquipmentRecommended Materials and Equipment Static Shielding Protection Levels Operating Guidelines Cleaning the Computer Case General Cleaning Safety PrecautionsCleaning the Keyboard Routine Care Cleaning the Monitor Service ConsiderationsCleaning the Mouse Power Supply Fan Tools and Software Requirements Cables and ConnectorsScrews Hard Drives Lithium Coin Cell Battery Spare parts Illustrated parts catalogComputer major components Power supply Description Spare part number Access panelHeat sink includes replacement thermal material Front I/O and power switch assembly Optical drives Description Spare part numberExpansion cards Keyboard Mouse 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 Panel Description Spare part number Front bezel 695080-001 Front Bezel Bezel 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 Screws Removing 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 Baffle Description Spare part number Front fan assembly 636922-001 Front Fan Assembly Remove the chassis fan Front Fan Assembly on Front I/O, Power Switch Assembly Description Spare part number Speaker 636925-001 Speaker Description Spare part number Heat sink 636919-001 Heat sink 47Removing the heat sink screws Heat sink Page Processor Page Pwrcmd Power Supply Power supply connector label System board connector 4Power supply cable system board connector System Board Page Battery Type 2 Battery Holder Type 1 Battery Holder Type 3 Battery Holder Using the Small Form Factor Computer in a Tower Orientation HP/Kensington MicroSaver Security Cable Lock Installing a Security Lock Padlock Front Bezel Security Page Japanese Power Cord Requirements Power Cord Set RequirementsGeneral Requirements Country Accrediting Agency Country-Specific Requirements Post Error Messages Table B-1Numeric Codes and Text Messages Post Numeric Codes and Text MessagesControl panel message Description Recommended action Test under Storage DPS Self-test Activity Blinks Possible Cause Table B-2Diagnostic Front Panel LEDs and Audible Codes Activity Blinks Possible Cause Recommended Action Safety and Comfort Before You Call for Technical Support Troubleshooting Without Diagnostics Refer to Helpful Hints on page 108 in this guide Helpful HintsPage Table C-1Solving General Problems Solving General ProblemsComputer date and time display is incorrect Cause Solution Computer will not respond to keyboard or mouse Cause Cannot remove computer cover or access panel Cause There is no sound or sound volume is too low Cause SolutionPoor performance Cause Solution Advanced Device Options Under Windows System, click Run All apps icon Cause 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 Problems Computer will not boot from hard drive Cause Solution Nonsystem disk/NTLDR missing message Cause SolutionStorage Boot Order Device Configuration Computer 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 Table C-5Solving Display Problems Solving Display ProblemsBlank screen no video Cause Solution Adjust screen resolution Dim 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 Problems There 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 Table C-7Solving Printer Problems Solving Printer ProblemsPrinter will not print Cause Solution Printer will not turn on Cause Solution Printer prints garbled information Cause Solution Table C-8Solving Keyboard Problems Solving Keyboard and Mouse Problems Enter Table C-9Solving Mouse Problems Table C-10Solving Hardware Installation Problems Solving Hardware Installation ProblemsControl Panel , and then select Device Manager Security USB Security Computer will not start Cause Solution Table C-11Solving Network Problems Solving Network Problems Manager Network status link light never flashes Cause Solution Diagnostics reports a failure Cause Solving Memory Problems Out of memory error Cause Solution Table C-12Solving Memory ProblemsMemory count during Post is wrong Cause Solution Insufficient memory error during operation Cause Solution Solving CD-ROM and DVD Problems Solving Processor ProblemsTable C-13Solving Processor Problems Table C-14Solving CD-ROM and DVD Problems Movie will not play in the DVD drive Cause Solution Security Network Boot Cannot eject compact disc tray-load unit Cause Solving USB Flash Drive Problems USB flash drive not found identified Cause Solution Table C-15Solving USB Flash Drive ProblemsSystem will not boot from USB flash drive Cause Solution Solving Internet Access Problems Solving Front Panel Component ProblemsPorts are set to Enabled in Security USB Security Unable to connect to the Internet Cause Solution Click Internet Options Select Start Control Panel Solving Software Problems Appendix C Troubleshooting Without Diagnostics Contacting Customer Support Why run HP PC Hardware Diagnostics HP PC Hardware Diagnostics How to access and run HP PC Hardware Diagnostics Downloading HP PC Hardware Diagnostics to a USB device Restoring and recovering in Windows Backup and RecoverySystem Restore System Recovery System 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 Windows Using the Windows recovery tools Performing a system recovery Using f11 recovery tools Cmos Password Security and Resetting Resetting 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 Setup Table H-1Specifications Specifications Appendix H Specifications Cmos Index DVI-D Sata