HP dc5850 manual Helpful Hints

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Check all cable connections for loose connections or incorrect connections.

Wake the computer by pressing any key on the keyboard or pressing the power button. If the system remains in suspend mode, shut down the computer by pressing and holding the power button for at least four seconds then press the power button again to restart the computer. If the system will not shut down, unplug the power cord, wait a few seconds, then plug it in again. The computer will restart if automatic start on power loss is set in Computer Setup. If it does not restart, press the power button to start the computer.

Reconfigure the computer after installing a non–plug and play expansion board or other option. See Solving Hardware Installation Problems on page 32 for instructions.

Be sure that all the needed device drivers have been installed. For example, if you are using a printer, you need a driver for that model printer.

Remove all bootable media (diskette, CD, or USB device) from the system before turning it on.

If you have installed an operating system other than the factory-installed operating system, check to be sure that it is supported on the system.

If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed (embedded video on some models only) and a single monitor, the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter. During boot, the other monitor connectors are disabled and if the monitor is connected into these ports, the monitor will not function. You can select which source will be the default VGA source in Computer Setup.

CAUTION: When the computer is plugged into an AC power source, there is always voltage applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.

ENWW

Helpful Hints 9

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Contents Troubleshooting Guide dc5850 Models Troubleshooting Guide Iii Iv About This Book Table of contents Accessing DPS Through Computer Setup Appendix B Password Security and Resetting CmosHP Insight Diagnostics HP Insight DiagnosticsSurvey Tab Test Tab Log Tab Protecting the Software Select a language and click DownloadProtecting the Software HP Backup and Recovery Manager Safety and Comfort Safety and Comfort Before You Call for Technical SupportHelpful Hints Helpful Hints Solving General Problems 1Solving General ProblemsComputer date and time display is incorrect Cause Solution Solving General Problems There is no sound or sound volume is too low Cause SolutionPoor performance is experienced Cause Solution Cause Solution Enww Solving Power Problems 2Solving Power ProblemsPower supply shuts down intermittently Cause Solution Solving Diskette Problems Solving Diskette Problems3Solving 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 SolutionStorage Storage Options Removable Media Storage Boot OrderBoot Security Password OptionsDisk transaction problem Cause Solution Solving Hard Drive Problems4Solving Hard Drive Problems Hard drive error occurs Cause SolutionComputer will not boot from hard drive Cause Solution Solving Hard Drive ProblemsNonsystem disk/NTLDR missing message Cause Solution Storage Boot Order listComputer seems to be locked up Cause Solution Can not write to the media card Cause Solution Solving Media Card Reader ProblemsSolving Media Card Reader Problems 5Solving Media Card Reader ProblemsEnww Blank screen no video Cause Solution Solving Display ProblemsSolving Display Problems 6Solving Display ProblemsDim characters Cause Solution Select ImageControl/ Horizontal Position or Vertical Install the video drivers included in the upgrade kitImage is not centered Cause Solution Out of Range displays on screen Cause SolutionCertain typed symbols do not appear correct Cause Solution Sound cuts in and out Cause Solution Solving Audio ProblemsSolving Audio Problems 7Solving Audio ProblemsUnsaved data Line-in jack is not functioning properly Cause SolutionSolving Printer Problems Solving Printer Problems8Solving Printer Problems Select Shut Down Solving Keyboard and Mouse Problems9Solving Keyboard Problems 10Solving Mouse ProblemsSolving Keyboard and Mouse Problems Solving Hardware Installation Problems 11Solving Hardware Installation ProblemsComputer will not start Cause Solution Option card Solving Hardware Installation ProblemsGoes away Once bad card is identified, remove and replace badSolving Network Problems 12Solving Network ProblemsWake-on-LAN feature is not functioning Cause Solution Solving Network Problems Network status link light never flashes Cause SolutionDiagnostics reports a failure Cause Solution Drivers for a new expansion board were installed New network card will not boot Cause SolutionNetwork controller requires drivers Solving Memory Problems Solving Memory Problems13Solving Memory Problems Enww Some fans only operate when needed Solving Processor ProblemsSolving Processor Problems 14Solving Processor ProblemsSolving CD-ROM and DVD Problems 15Solving CD-ROM and DVD ProblemsMode in Security Password Options Solving CD-ROM and DVD Problems Movie will not play in the DVD drive Cause SolutionCannot eject compact disc tray-load unit Cause Solution System will not boot from USB Drive Key Cause Solution Solving Drive Key Problems16Solving Drive Key Problems USB Drive Key not found identified Cause SolutionSolving Front Panel Component Problems Solving Front Panel Component Problems17Solving Front Panel Component Problems Solving Internet Access Problems 18Solving Internet Access ProblemsUnable to connect to the Internet Cause Solution 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 MessagesBoard If the error persists after replacingMemory modules Memory modules, replace the systemReplace the graphics card if possible Flash Screen Image Corrupted Flash Screen image has errorsClear CMOS. See Appendix B Verify monitor is attached and turnedUnder Storage DPS Self-test Enww Table A-2Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended ActionIs not spinning, make sure the fans cable is Continue adding devices one at a time to This procedure until failure occurs. ReplaceDevice that is causing the failure Replace one device at a time and repeatCheck to see if the 5Vaux light on Check that both power supply cables areProblem persists, replace the system board Properly connected to the system boardCmos Resetting the Password Jumper Using Computer Setup to Reset Cmos Clearing and Resetting the CmosFigure 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 Index
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dc5850 specifications

The HP dc5850 is a desktop computer that was designed for business environments, offering a blend of performance, reliability, and efficiency. Released during the height of the mid-2000s, this system is powered by AMD processors, particularly the Athlon or Phenom series, which ensures that it can handle various computational tasks with ease.

The dc5850 features a compact chassis that adheres to the Microtower form factor. This design not only saves space but also allows for easier upgrades and maintenance. The unit typically supports a range of RAM configurations, with options for up to 8GB of DDR2 memory. This flexibility enables the user to tailor the system's performance according to their needs, whether for basic office tasks or more demanding applications.

Storage options on the HP dc5850 include a 3.5-inch HDD that can accommodate substantial data, with capacities typically ranging from 160GB to 1TB. The inclusion of a SATA interface ensures fast data transfer rates, which is essential for improving overall system performance. Moreover, the dc5850 boasts multiple USB ports, including USB 2.0 and sometimes even USB 3.0, facilitating easy connectivity with peripherals such as printers, scanners, and external drives.

Graphics capabilities on the dc5850 are generally provided by integrated solutions, although users have the option to add discrete graphics cards for enhanced performance in visual tasks. The system often comes with integrated audio, which supports basic multimedia needs without requiring additional sound cards.

In terms of connectivity, the HP dc5850 features built-in Ethernet for wired networking and may also offer options for Wi-Fi capabilities via PCI expansion slots. This makes it suitable for networked business environments, enabling seamless integration into office infrastructures.

The system is designed with energy efficiency in mind, complying with various environmental standards, thereby reducing its carbon footprint. This aspect may also lead to lower operational costs for businesses focused on sustainability.

Overall, the HP dc5850 stands out as a versatile desktop solution, catering to the essential needs of small to medium-sized businesses. With its combination of performance, expandability, and energy efficiency, it remains a noteworthy choice for users seeking reliable computing power in a compact and manageable form.