Solving display problems | HP 8300E B8U11UT#ABA instruction

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 8-5Solving 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.

118 Chapter 8 Troubleshooting Without Diagnostics

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HP 8300E B8U11UT#ABA manual 5Solving 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 Routine Care and Disassembly Preparation 109 105107 110 Models 156 157 Viii Product Features OverviewPage Front components 1Front componentsComponent Side components 2Side components Rear components Rear components3Rear components Adjusting the tilt/swivel base 6Adjusting swivel Product Features Height adjustable/recline stand optional Page 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 Utility Computer Setup F10 utilities Using Computer Setup F10 utilities Computer Setup-File 1Computer Setup-File Computer Setup-Storage 2Computer Setup-Storage Computer Setup-Security 3Computer Setup-Security Slot Security Network BootMaster Boot Record System IDs System Security DriveLock Security Computer Setup-Power 4Computer Setup-Power Option Heading Power-On Options Computer Setup-Advanced5Computer Setup-Advanced Bios Power-On Device Options VGA ConfigurationBus Options Operations 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 Sata Hard Drives Serial ATA Sata Drive Guidelines and FeaturesSerial ATA Hard Drive Characteristics Sata Hard Drive Cables Serial ATA Sata Drive Guidelines and Features Smart ATA DrivesHard Drive Capacities Routine Care and Disassembly Preparation Preventing 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 Levels Operating Guidelines Cleaning the keyboard General cleaning safety precautionsCleaning the computer case Routine Care Cleaning the mouse Service ConsiderationsCleaning the display Tools and software requirements Cables and connectors Lithium coin cell batteryHard drives Removal and Replacement Procedures All-in One AIO Chassis Preparing to disassemble the computer Removing the rear port cover Cable management cover Installing an access panel security screw Synchronizing the optional wireless keyboard or mousePage Access panel Page Stand Page 12Lower panel location To remove the access panel Lower panel Metal plate Metal plate is located under the standPage Remove the access panel see Access panel on Replacing drives Replacing drivesPage Page Page Replacing the optical disc drive 23Optical drive locationPage Page Memory 1Identifying Sodimm locations Location System Board Label ChannelPage Replacing the battery Page Serial port 34Serial port location To remove the serial portPage Remove the access panel see Access panel on Webcam module Webcam modulePage Page Converter board 40Converter board location To remove the 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 Wlan module To remove the mSATA SSDPage Page Graphics board 54Graphics board location To remove the graphics boardPage Speakers 56Speaker location To remove the speakers Fan Side panels 59Side panel locations To remove the side panels Rotate the panel out and off of the computer Power supply 61Power supply location To remove the power supply 63Removing the power supply Power supply Page System board Remove the processor see Processor onPage Page Page Page Updating Smbios Information Setup Field Name Comment Label Card reader board Page Power button board Page Page Front bezel Page Right 4 screws Bottom 2 screw Antenna Page To install the antenna, reverse the removal procedures Display panelPage 81Display 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 Solving general problems Troubleshooting Without Diagnostics1Solving general problems There is no sound or sound volume is too low Cause Solution Solving general problemsComputer date and time display is incorrect Cause Solution Poor performance is experienced Cause Solution Cause Solution Solving general problems 2Solving power problems Solving power problemsSolving hard drive problems 3Solving hard drive problems Solving hard drive problems Computer will not boot from hard drive Cause Solution Storage Boot OrderComputer seems to be locked up Cause Solution 4Solving media card reader problems Solving media card reader problemsSolving media card reader problems Can not write to the media card Cause Solving display problems 5Solving display problemsBlank screen no video Cause Solution Solving display problems Out of Range displays on screen Cause Solution Solving audio problems 6Solving audio problems Sound from headphones is not clear or muffled Cause Solving audio problemsEnable digital CD audio for this CD-ROM device is Advanced Device Options Internal Speaker There is no sound or sound volume is too low Cause Solving printer problems7Solving printer problems Printer will not print Cause Solution 8Solving keyboard problems Solving keyboard and mouse problemsSolving keyboard and mouse problems Printer prints garbled information Cause Solution 9Solving Mouse Problems 10Solving hardware installation problems Solving hardware installation problemsSolving hardware installation problems Computer will not start Cause Solution Troubleshooting Without Diagnostics Solving network problems Solving network problems11Solving network problems Diagnostics reports a failure Cause Solution 12Solving memory problems Solving memory problemsSolving memory problems New network card will not boot Cause Out of memory error Cause Solution Memory count during Post is wrong Cause SolutionInsufficient memory error during operation Cause Solution Solving processor problems Solving processor problemsSolving CD-ROM and DVD problems 13Solving processor problems Movie will not play in the DVD drive Cause Solution 15Solving USB flash drive problems Solving USB flash drive problemsSolving USB flash drive problems Cannot eject compact disc tray-load unit Cause Solving internet access problems 16Solving internet access problems Solving internet access problems Solving software problems 17Solving software problems Post Error Messages 1Numeric Codes and Text Messages Post Error MessagesPost Numeric Codes and Text Messages Control panel message Description Recommended action Post Numeric Codes and Text Messages Verify monitor is attached and turned Select File Save Changes and Exit Test under Storage DPS Self-testOptions Sata Emulation to IDE, Security Drivelock Security. For each Post Error Messages Bios Occurred prior to the ME firmware update Post Numeric Codes and Text Messages Activity Interpreting Post diagnostic front panel LEDs2Diagnostic front panel LEDs and audible codes Possible Cause Recommended Action Desktop Management Guide for more Post Error Messages Password Security and Resetting Cmos Establishing a Setup or Power-on password Password Security and Resetting Cmos Resetting the Setup and Power-on password Clearing and resetting the Cmos Locate, press, and hold the Cmos button in for five seconds Cmos button Power Cord Set Requirements Japanese Power Cord RequirementsGeneral requirements Country-specific requirements Country Accrediting Agency Table B-1Specifications SpecificationsAppendix B Specifications Models Table B-2Specifications Models Index Cmos Sata