Solving display problems | HP 8300 D0K72US#ABA, 8300 C5J37AWABA

After installing the media card reader and booting to Windows, the reader and the inserted cards are not recognized by the computer.

Cause

Solution

The operating system needs time to recognize the device if the reader was just installed into the computer and you are turning the PC on for the first time.

Wait a few seconds so that the operating system can recognize the reader and the available ports, and then recognize whatever media is inserted in the reader.

After inserting a media card in the reader, the computer attempts to boot from the media card.

Cause

Solution

The inserted media card has boot capability.

If you do not want to boot from the media card, remove it during boot or do not select the option to boot from the inserted media card during the boot process.

Solving display problems

If you encounter display problems, see the documentation that came with the monitor and to the common causes and solutions listed in the following table.

Table 7-5Solving display problems

Blank screen (no video).

Cause	Solution

You may have a screen blanking utility installed or energy	Press any key or click the mouse button and, if set, type your
saver features are enabled.	password.

System ROM is corrupted; system is running in Boot Block	Reflash the system ROM with the latest BIOS image.
Emergency Recovery Mode (indicated by eight beeps).

Computer is in standby mode.	Press the power button to resume from standby mode.
	CAUTION: When attempting to resume from standby
	mode, 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.

Blank screen and the 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

Pre-video memory error.	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 display problems 115

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HP 8300 D0K72US#ABA, 8300 C5J37AWABA manual 5Solving display problems, Blank screen no video Cause Solution

Contents

Maintenance & Service Guide Maintenance & Service Guide Iii About This Book Iv About This Book Table of contents Removal and Replacement Procedures All-in One AIO Chassis 108 103105 107 Interpreting Post diagnostic front panel LEDs 143 Models 153 154Viii Overview Product FeaturesPage Front components 1Front componentsComponent 2Side components Side components Rear components Rear components3Rear components Installing and customizing the software Installing the operating systemDownloading Microsoft Windows updates Installing or upgrading device drivers Windows systems Accessing disk image ISO filesProtecting the software Computer Setup F10 utilities Computer Setup F10 Utility Using Computer Setup F10 utilities Computer Setup-File Computer Setup F10 Utility1Computer Setup-File 2Computer Setup-Storage Computer Setup-Storage 3Computer Setup-Security Computer Setup-Security System IDs Network BootMaster Boot Record Slot Security DriveLock Security System Security 4Computer Setup-Power Computer Setup-Power Bios Power-On Computer Setup-Advanced5Computer Setup-Advanced Option Heading Power-On Options Operations VGA ConfigurationBus Options Device Options Sata Hard Drive Cables Serial ATA Sata Drive Guidelines and FeaturesSerial ATA Hard Drive Characteristics Sata Hard Drives Smart ATA Drives Hard Drive CapacitiesSmart ATA Drives Routine Care and Disassembly Preparation Relative Humidity Event 55% 40% 10% Electrostatic discharge informationGenerating static Preventing electrostatic damage to equipment Static Shielding Protection Levels Personal grounding methods and equipmentGrounding the work area Recommended materials and equipment Operating Guidelines Routine Care General cleaning safety precautionsCleaning the computer case Cleaning the keyboard Tools and software requirements Service ConsiderationsCleaning the display Cleaning the mouse Cables and connectors Lithium coin cell batteryHard drives Preparing to disassemble the computer Removal and Replacement Procedures All-in One AIO Chassis Adjusting the tilt/swivel base Height adjustable/recline stand optional Page Cable management cover Removing the rear port cover Synchronizing the optional wireless keyboard or mouse Installing an access panel security screwPage Access panel Page Stand Page Lower panel 17Lower panel location To remove the access panel Metal plate is located under the stand Metal platePage Replacing drives Remove the access panel see Access panel on Replacing drivesPage Page Page 28Optical drive location Replacing the optical disc drivePage Page Memory Location System Board Label Channel 1Identifying Sodimm locationsPage Replacing the battery Page 39Serial port location To remove the serial port Serial portPage Webcam module Remove the access panel see Access panel on Webcam modulePage Page 45Converter board location To remove the converter board Converter boardPage Inch Touch sensor board Page Heat sinks Graphics board and processor Graphics heat sinkTo remove the heat sink Processor heat sink model Processor heat sink model Lift the heat sink assembly from the computer Processor MSATA Solid-State Drive To remove the mSATA SSD Wlan modulePage Page 59Graphics board location To remove the graphics board Graphics boardPage 61Speaker location To remove the speakers Speakers Fan 64Side panel locations To remove the side panels Side panels Rotate the panel out and off of the computer 66Power supply location To remove the power supply Power supply 68Removing the power supply Power supply Page Remove the processor see Processor on System boardPage Page Page Page Setup Field Name Comment Label Updating Smbios Information Card reader board Page Power button board Page Page Front bezel Page Right 4 screws Bottom 2 screw Antenna Page Display panel To install the antenna, reverse the removal proceduresPage 86Display panel screw locations 6300 models CMI panel Page Page Inch Hood sensor Page Hard drive and optical drive cables and connectors Page Troubleshooting Without Diagnostics Safety and comfortSafety and comfort Computer date and time display is incorrect Cause Solution Solving general problemsTroubleshooting Without Diagnostics 1Solving general problems Solving general problems There is no sound or sound volume is too low Cause SolutionPoor performance is experienced Cause Solution Cause Solution 2Solving power problems Solving power problemsSolving hard drive problems Solving power problems Advanced Power-On Options Disk transaction problem Cause SolutionDrive not found identified Cause Solution Power-On Computer seems to be locked up Cause Solution Solving hard drive problemsComputer will not boot from hard drive Cause Solution Storage Boot Order Solving media card reader problems 4Solving media card reader problemsCan not write to the media card Cause Blank screen no video Cause Solution Solving display problemsSolving display problems 5Solving display problems Out of Range displays on screen Cause Solution Solving audio problems Solving audio problems6Solving audio problems Line-in jack is not functioning properly Cause Enable digital CD audio for this CD-ROM device isSound from headphones is not clear or muffled Cause Advanced Device Options Internal Speaker Solving printer problems Solving printer problems7Solving printer problems Printer is offline Cause Solution Solving keyboard and mouse problems8Solving keyboard problems Printer prints garbled information Cause Solution 9Solving Mouse Problems Solving keyboard and mouse problems Security USB Security Solving hardware installation problems10Solving hardware installation problems Computer will not start Cause Solution Solving hardware installation problems 11Solving network problems Solving network problems Diagnostics reports a failure Cause Solution Solving network problems Solving memory problems 12Solving memory problemsNew network card will not boot Cause Insufficient memory error during operation Cause Solution Solving memory problemsOut of memory error Cause Solution Memory count during Post is wrong Cause Solution 14Solving CD-ROM and DVD problems Solving processor problemsSolving CD-ROM and DVD problems 13Solving processor problems Movie will not play in the DVD drive Cause Solution Solving CD-ROM and DVD problems Solving USB flash drive problems 15Solving USB flash drive problemsCannot eject compact disc tray-load unit Cause Solving internet access problems Solving internet access problems16Solving internet access problems Click on Hardware and Sound Unable to connect to the Internet CauseClick Network and Internet Click Internet Options Solving software problems Solving software problems17Solving software problems Post Error Messages Control panel message Description Recommended action Post Numeric Codes and Text MessagesPost Numeric Codes and Text Messages 1Numeric Codes and Text Messages Post Error Messages Verify monitor is attached and turned Security Drivelock Security. For each Test under Storage DPS Self-testOptions Sata Emulation to IDE, Select File Save Changes and Exit Post Numeric Codes and Text Messages Bios Occurred prior to the ME firmware update Post Error Messages Activity Interpreting Post diagnostic front panel LEDsInterpreting Post diagnostic front panel LEDs 2Diagnostic front panel LEDs and audible codes Desktop Management Guide for more Interpreting Post diagnostic front panel LEDs Cmos Password Security and Resetting Establishing a Setup or Power-on password Establishing a Setup or Power-on password Resetting the Setup and Power-on password Clearing and resetting the Cmos Cmos button Locate, press, and hold the Cmos button in for five seconds Power Cord Set Requirements Japanese Power Cord RequirementsGeneral requirements Appendix a Power Cord Set Requirements Country-specific requirementsCountry Accrediting Agency Models SpecificationsTable B-1Specifications Models Table B-2Specifications Appendix B Specifications Cmos Index Sata