Solving Display Problems | HP 8200 SM774UP instruction

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 C-6Solving 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.

108 Appendix C Troubleshooting Without Diagnostics

Image 116

HP 8200 SM774UP manual Table C-6Solving Display Problems, Blank screen no video Cause Solution

Contents

Maintenance & Service Guide Maintenance & Service Guide About This Book Iii Iv About This Book Table of contents Removal and Replacement Procedures All-in One AIO Chassis 101 102104 107 Ethernet BNC 130 Microphone 130 Headphone 131 Line-in Audio Line-out AudioAll-in One Models 134 Viii Product Features OverviewPage Front Components Front Components1Front Components Component Side Components 2Side Components 3Rear Components Rear ComponentsRear Components Adjusting Tilt 5Adjusting Tilt Product Features Downloading Microsoft Windows Updates Installing and Customizing the SoftwareInstalling the Operating System Protecting the Software Installing or Upgrading Device Drivers Windows systemsAccessing Disk Image ISO Files Computer Setup F10 Utility Computer Setup F10 Utilities Using Computer Setup F10 Utilities Computer Setup-File 1Computer Setup-File Computer Setup-Storage 2Computer Setup-StorageOption Description Device Configuration Storage Options Removable Media Boot DPS Self-Test Boot OrderShortcut to Temporarily Override Boot Order Computer Setup-Security 3Computer Setup-Security System IDs Network BootSlot Security System Security DriveLock Security Computer Setup-Power 4Computer Setup-Power Computer Setup-Advanced 5Computer Setup-Advanced AMT Configuration Device Options Serial ATA Sata Drive Guidelines and Features Serial ATA Hard Drive CharacteristicsSata Hard Drives Sata Hard Drive Cables Smart ATA Drives Smart ATA DrivesHard Drive Capacities An all-in one form factor is available Chassis DesignationAll-in One Electrostatic Discharge Information Generating StaticPreventing Electrostatic Damage to Equipment Relative Humidity Event 55% 40% 10% Personal Grounding Methods and Equipment Grounding the Work AreaRecommended Materials and Equipment Static Shielding Protection Levels Operating Guidelines General Cleaning Safety Precautions Cleaning the Computer CaseCleaning the Keyboard Routine Care Service Considerations Cleaning the MonitorCleaning the Mouse Tools and Software Requirements Hard Drives Cables and ConnectorsLithium Coin Cell Battery Removal and Replacement Procedures All-in One AIO Chassis Preparing to Disassemble the Computer Synchronizing the Optional Wireless Keyboard or Mouse Page Center Access Panel Stand Memory Access Panel Drive Access Panel Page Optical Drive Page Hard Drive 14Loosening the hard drive security screw Hard DrivePage Slide the hard drive out of the cage Memory 20Removing a memory module Memory Page Top Panel Webcam Module Page Rear Cover System Board Cover Page Sidekey Board Page Page Converter Board Page Speakers Wlan Module Page Heat Sink Thermal Module Lift the heat sink from the computer Processor 44Removing the processor ProcessorPage Fan Assembly Page Display Cable Page System Board Updating Smbios Information Setup Field Name Comment Label Go to Security System ID’s Removal and Replacement Procedures All-in One AIO Chassis Stand Bracket Page Hard Drive and Optical Drive Cables and Connectors Page Front Bezel Display Panel Page Page 60Samsung panel bracket locations Page Password Security and Resetting Cmos Establishing a Setup or Power-on Password Appendix a Password Security and Resetting Cmos Resetting a Setup or Power-on Password Clearing and Resetting the Cmos Clearing and Resetting the Cmos Locate, press, and hold the Cmos button in for five seconds Post Error Messages Table B-1Numeric Codes and Text Messages Post Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Appendix B Post Error Messages Test under Storage DPS Self-test Appendix B Post Error Messages Bios Appendix B Post Error Messages Options SERR# Generation Disable Table B-2Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Board needs to be replaced Safety and Comfort Troubleshooting Without DiagnosticsSafety and Comfort Solving General Problems Appendix C Troubleshooting Without DiagnosticsTable C-1Solving General Problems Computer date and time display is incorrect Cause Solution Poor performance is experienced Cause Solution Solving General ProblemsThere is no sound or sound volume is too low Cause Solution Cause Solution Table C-2Solving Power Problems Solving Power ProblemsSolving Power Problems Solving Diskette Problems Table C-3Solving Diskette Problems Solving Diskette Problems Solving Hard Drive Problems Table C-4Solving Hard Drive Problems Solving Hard Drive Problems Power-OnAdvanced Power-On Options Nonsystem disk/NTLDR missing message Cause Solution Computer will not boot from hard drive Cause Solution Computer seems to be locked up Cause Solution Solving Media Card Reader Problems Solving Media Card Reader ProblemsTable C-5Solving Media Card Reader Problems Can not write to the media card Cause Blank screen no video Cause Solution Solving Display ProblemsTable C-6Solving Display Problems Solving Display Problems Dim characters Cause Solution Select ImageControl/ Horizontal Position or Vertical Image is not centered Cause SolutionOut of Range displays on screen Cause Solution Certain typed symbols do not appear correct Cause Solution Symbol. Click Start All Programs Accessories Solving Audio Problems Table C-7Solving Audio Problems Solving Audio Problems 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 Cause Table C-8Solving Printer Problems Solving Printer ProblemsSolving Keyboard and Mouse Problems Table C-10Solving Mouse Problems Solving Keyboard and Mouse ProblemsTable C-9Solving Keyboard Problems Appendix C Troubleshooting Without Diagnostics Solving Hardware Installation Problems Solving Hardware Installation ProblemsTable C-11Solving Hardware Installation Problems Computer will not start Cause Solution Solving Network Problems Solving Network Problems Table C-12Solving Network Problems Diagnostics reports a failure Cause Solving Memory Problems Solving Memory ProblemsTable C-13Solving Memory Problems New network card will not boot Cause Solving Processor Problems Out of memory error Cause SolutionMemory count during Post is wrong Cause Solution Insufficient memory error during operation Cause Solution Solving CD-ROM and DVD Problems Solving CD-ROM and DVD ProblemsTable C-14Solving Processor Problems Table C-15Solving CD-ROM and DVD Problems Movie will not play in the DVD drive Cause Solution Cannot eject compact disc tray-load unit Cause Solving USB Flash Drive Problems Solving USB Flash Drive ProblemsTable C-16Solving USB Flash Drive Problems USB flash drive not found identified Cause Solution Solving Internet Access Problems Table C-17Solving Internet Access ProblemsSystem will not boot from USB flash drive Cause Solution Unable to connect to the Internet Cause Solution Solving Internet Access Problems Solving Software Problems Table C-18Solving Software Problems Contacting Customer Support Connector Pin Assignments Appendix D Connector Pin AssignmentsEthernet BNC Microphone Line-out Audio HeadphoneLine-in Audio General Requirements Power Cord Set RequirementsJapanese Power Cord Requirements Country-Specific Requirements Country Accrediting Agency Specifications Appendix F SpecificationsTable F-1Specifications All-in One Models Audible codes 94 audio problems Index Sata