HP dc5850 manual Check that both power supply cables are, Properly connected to the system board

Page 62

Table A-2Diagnostic Front Panel LEDs and Audible Codes (continued)

Activity

Beeps

Possible Cause

Recommended Action

 

 

 

 

 

iteration but LEDs continue

 

 

3.

Replace the system board.

until problem is solved.

 

 

4.

Replace the processor.

 

 

 

 

 

 

 

 

Red Power LED flashes ten

10

Bad option card.

1.

Check each option card by removing the card

times, once every second,

 

 

 

(one at a time if multiple cards), then power

followed by a two second

 

 

 

on the system to see if fault goes away.

pause. Beeps stop after fifth

 

 

2.

Once a bad card is identified, remove and

iteration but LEDs continue

 

 

until problem is solved.

 

 

 

replace the bad option card.

 

 

 

3.

Replace the system board.

 

 

 

 

System does not power on and

None

System unable to power

Press and hold the power button for less than 4

LEDs are not flashing.

 

on.

seconds. If the hard drive LED turns green, the

 

 

 

power button is working correctly. Try the

 

 

 

following:

 

 

 

1.

Check that the voltage selector (some

 

 

 

 

models), located on the rear of the power

 

 

 

 

supply, is set to the appropriate voltage.

 

 

 

 

Proper voltage setting depends on your

 

 

 

 

region.

 

 

 

2.

Replace the system board.

 

 

 

OR

 

 

 

 

Press and hold the power button for less than 4

 

 

 

seconds. If the hard drive LED does not turn on

 

 

 

green then:

 

 

 

1.

Check that the unit is plugged into a working

 

 

 

 

AC outlet.

 

 

 

2.

Open hood and check that the power button

 

 

 

 

harness is properly connected to the system

 

 

 

 

board.

 

 

 

3.

Check that both power supply cables are

 

 

 

 

properly connected to the system board.

 

 

 

4.

Check to see if the 5V_aux light on the

 

 

 

 

system board is turned on. If it is turned on,

 

 

 

 

then replace the power button harness. If the

 

 

 

 

problem persists, replace the system board.

 

 

 

5.

If the 5V_aux light on the system board is not

 

 

 

 

turned on, remove the expansion cards one

 

 

 

 

at a time until the 5V_aux light on the system

board turns on. It the problem persists, replace the power supply.

56 Appendix A POST Error Messages

ENWW

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Contents Troubleshooting Guide dc5850 Models Troubleshooting Guide Iii Iv About This Book Table of contents Appendix B Password Security and Resetting Cmos Accessing DPS Through Computer SetupHP 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 Before You Call for Technical Support Safety and ComfortHelpful Hints Helpful 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 Cause Solution Enww Power supply shuts down intermittently Cause Solution Solving Power Problems2Solving Power Problems 3Solving Diskette Problems Solving Diskette ProblemsSolving Diskette Problems Diskette drive cannot read a diskette Cause Solution Cannot format diskette Cause SolutionProblem has occurred with a disk transaction Cause Solution Invalid system disk message is displayed Cause SolutionSecurity Password Options Storage Boot OrderBoot Storage Storage Options Removable MediaHard drive error occurs Cause Solution Solving Hard Drive Problems4Solving Hard Drive Problems Disk transaction problem Cause SolutionStorage Boot Order list Solving Hard Drive ProblemsNonsystem disk/NTLDR missing message Cause Solution Computer will not boot from hard drive Cause SolutionComputer seems to be locked up Cause Solution 5Solving Media Card Reader Problems Solving Media Card Reader ProblemsSolving Media Card Reader Problems Can not write to the media card Cause SolutionEnww 6Solving Display Problems Solving Display ProblemsSolving Display Problems Blank screen no video Cause SolutionDim characters Cause Solution Out of Range displays on screen Cause Solution Install the video drivers included in the upgrade kitImage is not centered Cause Solution Select ImageControl/ Horizontal Position or VerticalCertain typed symbols do not appear correct Cause Solution 7Solving Audio Problems Solving Audio ProblemsSolving Audio Problems Sound cuts in and out Cause SolutionLine-in jack is not functioning properly Cause Solution Unsaved data8Solving Printer Problems Solving Printer ProblemsSolving Printer Problems 10Solving Mouse Problems Solving Keyboard and Mouse Problems9Solving Keyboard Problems Select Shut DownSolving Keyboard and Mouse Problems Computer will not start Cause Solution Solving Hardware Installation Problems11Solving Hardware Installation Problems Once bad card is identified, remove and replace bad Solving Hardware Installation ProblemsGoes away Option cardWake-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 Network controller requires drivers Drivers for a new expansion board were installedNew network card will not boot Cause Solution 13Solving Memory Problems Solving Memory ProblemsSolving Memory Problems Enww 14Solving Processor Problems Solving Processor ProblemsSolving Processor Problems Some fans only operate when neededMode in Security Password Options Solving CD-ROM and DVD Problems15Solving CD-ROM and DVD Problems Cannot eject compact disc tray-load unit Cause Solution Solving CD-ROM and DVD ProblemsMovie will not play in the DVD drive Cause Solution USB Drive Key not found identified Cause Solution Solving Drive Key Problems16Solving Drive Key Problems System will not boot from USB Drive Key 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 Double-clickAgere Systems PCI-SV92PP Soft Solving Internet Access ProblemsClick on System and Maintenance ModemSolving Software Problems 19Solving Software ProblemsContacting Customer Support Contacting Customer SupportPost Error Messages Table A-1Numeric Codes and Text Messages Post Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Control panel message Description Recommended actionMemory modules, replace the system If the error persists after replacingMemory modules BoardVerify monitor is attached and turned Flash Screen Image Corrupted Flash Screen image has errorsClear CMOS. See Appendix B Replace the graphics card if possibleUnder Storage DPS Self-test Enww Is not spinning, make sure the fans cable is Table A-2Diagnostic Front Panel LEDs and Audible CodesActivity Beeps Possible Cause Recommended Action Replace one device at a time and repeat This procedure until failure occurs. ReplaceDevice that is causing the failure Continue adding devices one at a time toProperly connected to the system board Check that both power supply cables areProblem persists, replace the system board Check to see if the 5Vaux light onCmos Resetting the Password Jumper Clearing and Resetting the Cmos Using Computer Setup to Reset CmosLocate, press, and hold the Cmos button in for five seconds Figure B-1 Cmos buttonDrive Protection System DPS Accessing DPS Through Computer Setup Select Storage DPS Self-TestIndex 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.
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