HP dc7800 tower manual Solving CD-ROM and DVD Problems

Page 47

Table 2-15Solving CD-ROM and DVD Problems (continued)

Movie will not play in the DVD drive.

Cause

Solution

 

 

Damaged media.

Replace media.

 

 

Movie rating locked out by parental lock.

Use DVD software to remove parental lock.

 

 

Media installed upside down.

Reinstall media.

 

 

Cannot eject compact disc (tray-load unit).

Cause

Solution

 

 

Disc not properly seated in the drive.

Turn off the computer and insert a thin metal rod into the emergency eject hole and push firmly. Slowly pull the tray out from the drive until the tray is fully extended, then remove the disc.

CD-ROM, CD-RW, DVD-ROM, or DVD-R/RW drive cannot read a disc or takes too long to start.

Cause

Solution

 

 

Media has been inserted upside down.

Re-insert the Media with the label facing up.

 

 

The DVD-ROM drive takes longer to start because it has to

Wait at least 30 seconds to let the DVD-ROM drive determine

determine the type of media played, such as audio or video.

the type of media being played. If the disc still does not start,

 

read the other solutions listed for this topic.

 

 

CD or DVD disc is dirty.

Clean CD or DVD with a CD cleaning kit, available from most

 

computer stores.

 

 

Windows does not detect the CD-ROM or DVD-ROM drive.

1. Use Device Manager to remove or uninstall the device.

 

2. Restart the computer and let Windows detect the CD or

 

DVD driver.

 

 

Recording or copying CDs is difficult or impossible.

Cause

Solution

 

 

Wrong or poor quality media type.

1.Try using a slower speed when recording.

2.Verify that you are using the correct media for the drive.

3.Try a different brand of media. Quality varies widely between manufacturers.

USDT computer boots too slow after removing a CD-ROM or DVD drive.

Cause

Solution

 

 

The system is searching for the drive during boot because the

Disconnect the drive cable from the system board.

drive cable is still attached to the system board.

 

 

 

ENWW

Solving CD-ROM and DVD Problems 41

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Contents Troubleshooting Guide Troubleshooting Guide Iii Iv About This Book Table of contents Accessing DPS Through Computer Setup HP Insight Diagnostics HP Insight DiagnosticsSurvey Tab Test Tab Log Tab Protecting the Software Protecting the SoftwareSelect a language and click Download HP Backup and Recovery Manager Safety and Comfort Safety and Comfort Before You Call for Technical SupportHelpful Hints Troubleshooting Without DiagnosticsHelpful Hints Computer date and time display is incorrect Cause Solution Solving General Problems1Solving General Problems Poor performance is experienced Cause Solution Solving General ProblemsThere is no sound or sound volume is too low Cause Solution Cannot remove computer cover or access panel Cause SolutionCause unknown Restart the computer Cause SolutionEnww Power supply shuts down intermittently Cause Solution Solving Power Problems2Solving Power Problems 3Solving Diskette Problems Solving Diskette ProblemsSolving Diskette Problems Invalid system disk message is displayed Cause Solution Cannot format diskette Cause SolutionProblem has occurred with a disk transaction Cause Solution Diskette drive cannot read a diskette Cause SolutionSecurity Password Options 4Solving Hard Drive Problems Solving Hard Drive ProblemsDevice Configuration Solving Hard Drive ProblemsStorage Boot Order list Computer will not boot from hard drive Cause SolutionTroubleshooting Without Diagnostics Can not write to the media card Cause Solution Solving Media Card Reader ProblemsSolving Media Card Reader Problems 5Solving Media Card Reader ProblemsTroubleshooting Without Diagnostics Blank screen no video Cause Solution Solving Display ProblemsSolving Display Problems 6Solving Display ProblemsDim 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 Sound cuts in and out Cause Solution Solving Audio ProblemsSolving Audio Problems 7Solving Audio ProblemsLine-in jack is not functioning properly Cause Solution Sound from headphones is not clear or muffled Cause Solution8Solving Printer Problems Solving Printer ProblemsSolving Printer Problems Select Shut Down Solving Keyboard and Mouse Problems9Solving Keyboard Problems 10Solving Mouse ProblemsSolving Keyboard and Mouse Problems Computer will not start Cause Solution Solving Hardware Installation Problems11Solving Hardware Installation Problems Option card Solving Hardware Installation ProblemsGoes away Once bad card is identified, remove and replace badWake-on-LAN feature is not functioning Cause Solution Solving Network Problems12Solving Network Problems Diagnostics reports a failure Cause Solution Solving Network ProblemsNetwork status link light never flashes Cause Solution New network card will not boot Cause Solution 13Solving Memory Problems Solving Memory ProblemsSolving Memory Problems Troubleshooting Without Diagnostics Some fans only operate when needed Solving Processor ProblemsSolving Processor Problems 14Solving Processor ProblemsMovie will not play in the DVD drive Cause Solution Solving CD-ROM and DVD Problems15Solving CD-ROM and DVD Problems Mode in Security Password OptionsCannot eject compact disc tray-load unit Cause Solution Solving CD-ROM and DVD ProblemsSystem will not boot from USB Drive Key Cause Solution Solving Drive Key Problems16Solving Drive Key Problems USB Drive Key not found identified Cause Solution17Solving Front Panel Component Problems Solving Front Panel Component ProblemsSolving Front Panel Component Problems Unable to connect to the Internet Cause Solution Solving Internet Access Problems18Solving Internet Access Problems Modem Solving Internet Access ProblemsClick on System and Maintenance Double-clickAgere Systems PCI-SV92PP Soft19Solving Software Problems Solving Software ProblemsContacting Customer Support Contacting Customer SupportPost Error Messages Control panel message Description Recommended action Post Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Table A-1Numeric Codes and Text MessagesContact an authorized dealer or reseller for Advanced Onboard Devices Computer Setup or Windows utilities Sata Under Storage DPS Self-testKeyboard failure while Network Server Mode Activity Beeps Possible Cause Recommended Action Table A-2Diagnostic Front Panel LEDs and Audible CodesUse the Smart ID technology before Red Power LED flashes ten Bad option card Cmos Resetting the Password Jumper Resetting the Password JumperClearing and Resetting the Cmos Figure B-1 Cmos button Locate, press, and hold the Cmos button in for five secondsDrive Protection System DPS Select Storage DPS Self-Test Accessing DPS Through Computer SetupIndex
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dc7800 tower specifications

The HP dc7800 Tower is a powerful desktop computer designed for professional and enterprise environments. Known for its stability, performance, and versatility, this model has secured its place in a variety of business settings. Launched in the mid-2000s, it embodies HP’s commitment to quality and innovation.

One of the main features of the HP dc7800 is its form factor. The tower configuration allows for easy upgrades and maintenance, providing ample space for additional hard drives, memory, and other components. This level of accessibility makes it ideal for businesses that need to adapt their systems to changing requirements.

The dc7800 is powered by Intel's Core 2 Duo processors, offering dual-core technology that enhances multitasking capabilities. With clock speeds ranging from 1.8 GHz to 3.0 GHz, this system can handle demanding applications with relative ease. It also supports Intel's vPro technology, which allows for remote management and security features, making it an excellent choice for organizations prioritizing IT control.

Another notable characteristic is the support for up to 8GB of DDR2 RAM. This allows for efficient data processing and improved performance when running multiple applications simultaneously. Additionally, the dc7800 features multiple storage options, accommodating both SATA hard drives and solid-state drives, which can significantly enhance boot times and overall system responsiveness.

Connectivity options on the HP dc7800 are robust. It includes a variety of USB ports, audio jacks, and optional legacy ports, ensuring compatibility with a wide range of peripherals and accessories. Networking capabilities are also prominent, with built-in Gigabit Ethernet providing high-speed internet access.

Furthermore, the desktop tower is designed with energy efficiency in mind. It meets ENERGY STAR certification standards, which not only helps reduce operational costs but also minimizes environmental impact.

Overall, the HP dc7800 Tower embodies a blend of performance, expandability, and energy efficiency, making it a reliable choice for businesses in need of a robust desktop solution. With its legacy of dependability and its suite of modern technologies, it continues to serve as a valuable asset in enterprise environments.
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