HP Dc7100 Troubleshooting Guide

HP Dc7100 - Compaq Business Desktop Manual

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  • HP Dc7100 | Troubleshooting Guide - Page 1
    Troubleshooting Guide Business Desktops Document Part Number: 361204-001 May 2004 This guide provides helpful hints and solutions for troubleshooting the above products as well as scenarios for possible hardware and software problems.
  • HP Dc7100 | Troubleshooting Guide - Page 2
    -DOS, Windows, and Windows NT are trademarks of Microsoft Corporation in the U.S. and other countries. The only warranties for HP products and services are set damage to equipment or loss of information. Troubleshooting Guide Business Desktops First Edition (May 2004) Document Part Number: 361204-001
  • HP Dc7100 | Troubleshooting Guide - Page 3
    Display Problems 2-19 Solving Audio Problems 2-24 Solving Printer Problems 2-27 Solving Keyboard and Mouse Problems 2-28 Solving Hardware Installation Problems 2-30 Solving Network Problems 2-33 Solving Memory Problems 2-37 Solving Processor Problems 2-38 Troubleshooting Guide www.hp.com
  • HP Dc7100 | Troubleshooting Guide - Page 4
    CD-ROM and DVD Problems 2-39 Solving Drive Key Problems 2-41 Solving Internet Access Problems 2-41 Solving Software Problems 2-44 Contacting Customer Support 2-45 A POST Error Messages POST Numeric Codes and Text Messages A-2 POST Diagnostic Front Panel LEDs and Audible Codes A-14 B Password
  • HP Dc7100 | Troubleshooting Guide - Page 5
    party devices not supported by HP may not be detected by Diagnostics for Windows. Save, print, or display the information generated by the utility. You should run tests and have the printed report available before placing a call to the Customer Support Center. Troubleshooting Guide www.hp.com 1-1
  • HP Dc7100 | Troubleshooting Guide - Page 6
    Record and Diagnostics for Windows are included, the Diagnostics for Windows utility is installed. ❏ If icons for Configuration Record and Diagnostics for Windows are not included, the Diagnostics for Windows utility may be loaded, but not installed. 1-2 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 7
    the computer to complete the installation of Diagnostics for Windows. ✎ If you want to upgrade an existing version of Diagnostics for Windows installed on the computer, visit www.hp.com/support to locate and download the latest Diagnostics for Windows SoftPaq. Troubleshooting Guide www.hp.com 1-3
  • HP Dc7100 | Troubleshooting Guide - Page 8
    Start > HP Information Center > Diagnostics for Windows. You can also select the Diagnostics for Windows icon, located in the Control Panel, by clicking Start > Control Panel, then select Diagnostics for Windows. The screen displays the overview of the computer hardware and software. 2. For specific
  • HP Dc7100 | Troubleshooting Guide - Page 9
    Error ■ audio information ■ Windows-Windows information ■ Architecture-PCI Device information ■ Resources-IRQ, I/O, and Memory Map information ■ Health-Status of system temperature and hard drives ■ Miscellaneous-CMOS, DMI, BIOS, System, Product Name, and Serial Number Troubleshooting Guide www.hp
  • HP Dc7100 | Troubleshooting Guide - Page 10
    tested, the type and number of errors, and the error code. Running Diagnostic Tests in Diagnostics for Windows To run diagnostic tests: 1. Click Start > HP Information Center > Diagnostics for Windows. You can also select the Diagnostics for Windows icon, located in the Control Panel, by clicking
  • HP Dc7100 | Troubleshooting Guide - Page 11
    specific devices or tests, find the device in the list, then select the check box beside each test. When selected, a red check subsystem will be indicated by an error message under the subsystem name in the Test window or by shaded boxes that cannot session. Troubleshooting Guide www.hp.com 1-7
  • HP Dc7100 | Troubleshooting Guide - Page 12
    , you may be able to solve some problems yourself. 10. Click Print or save the error information in case you need to contact an authorized dealer, reseller, or service provider for assistance. 11. To exit Diagnostics for Windows, click File, then click Exit. 1-8 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 13
    the original Base.log file is present in the cpqdiags directory, the Base.log file is displayed next to the Now.log file in a split window with the differences between the two highlighted in the color red. Troubleshooting Guide www.hp.com 1-9
  • HP Dc7100 | Troubleshooting Guide - Page 14
    the computer periodically allows the user to keep a history of the configuration. This history may be useful to your service provider if the system ever encounters a problem that needs debugging. 4. To exit Configuration Record, click File, then click Exit. 1-10 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 15
    The Windows operating system and software can be restored to the original state that they were when you purchased the computer by using the Restore Plus! CD. See the documentation included with the Restore Plus! CD for complete instructions on using this feature. Troubleshooting Guide www.hp.com
  • HP Dc7100 | Troubleshooting Guide - Page 16
    Computer Diagnostic Features 1-12 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 17
    audio, memory, and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions. ✎ For information on specific error to Safety & Regulatory Information on the Documentation CD. Troubleshooting Guide www.hp.com 2-1
  • HP Dc7100 | Troubleshooting Guide - Page 18
    Setup (F10) Utility Guide on the Documentation CD for more information. ■ Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights are error codes that will help you diagnose the problem. Refer to Appendix A, "POST Error Messages" for more information
  • HP Dc7100 | Troubleshooting Guide - Page 19
    software that was recently installed. ■ Run the Restore Plus! CD. Ä CAUTION: Running the Restore Plus! CD will erase all data on the hard drive. ✎ For sales information and warranty upgrades (Care Packs), call your local authorized service provider or dealer. Troubleshooting Guide www.hp.com 2-3
  • HP Dc7100 | Troubleshooting Guide - Page 20
    the monitor is turned on and the green monitor light is on. ■ Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights are error codes that will help you diagnose the problem. Refer to Appendix A, "POST Error Messages" for more information. ■ Turn up the
  • HP Dc7100 | Troubleshooting Guide - Page 21
    Setup. Ä 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. Troubleshooting Guide www.hp.com 2-5
  • HP Dc7100 | Troubleshooting Guide - Page 22
    . First, reset the date and time under Control Panel (Computer Setup can also be used to update the RTC date and time). If the problem persists, replace the RTC battery. See the Hardware Reference Guide on the Documentation CD for instructions on installing a new battery, or contact an authorized
  • HP Dc7100 | Troubleshooting Guide - Page 23
    Transfer data from the hard drive to create more space on the hard drive. Add more memory. Defragment hard drive. Restart the computer. Run virus protection program. 1. Close unnecessary applications to free up memory. 2. Add more memory. Restart the computer. Troubleshooting Guide www.hp.com 2-7
  • HP Dc7100 | Troubleshooting Guide - Page 24
    Troubleshooting Without Diagnostics Solving General Problems (Continued) Problem Cause Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps or service provider. 2-8 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 25
    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. 5. If the 5V_aux light on the system board is not turned on, then replace the power supply. 6. Replace the system board. Troubleshooting Guide www.hp.com 2-9
  • HP Dc7100 | Troubleshooting Guide - Page 26
    Power supply will not turn on because of internal power supply fault. Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps reseller or service provider. 2-10 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 27
    Troubleshooting Without Diagnostics Solving Power Supply Problems (Continued) Problem Cause Solution Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. Power failure (power supply is overloaded). 1. Check that the voltage
  • HP Dc7100 | Troubleshooting Guide - Page 28
    not formatted. Solution In Microsoft Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. Remove diskette and reinsert. Reconnect drive cable. Ensure that all four pins on the diskette power cable are connected to
  • HP Dc7100 | Troubleshooting Guide - Page 29
    , and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. Check the type of drive that you are using and use the correct diskette type. Check the drive letter in the path statement. Replace the diskette with a new one. Troubleshooting Guide www.hp.com 2-13
  • HP Dc7100 | Troubleshooting Guide - Page 30
    Boot function in Computer Setup overrides the Boot Order enable command. Run Computer Setup and disable Network Server Mode in Security > Password Options. Run Computer Setup and enable Removable Media Boot in Storage > Storage Options > Removable Media Boot. 2-14 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 31
    within Computer Setup. If it is listed, the probable cause is a driver problem. If it is not listed, the probable cause is a hardware problem. If this is a newly installed drive, enter Computer Setup and try adding a POST delay under Advanced > Power-On. Troubleshooting Guide www.hp.com 2-15
  • HP Dc7100 | Troubleshooting Guide - Page 32
    . Replace the MBR image. 3. If the hard drive is still inaccessible after booting to a diskette and MBR Security is enabled, you may try restoring the previously saved MBR image. To do so, enter Computer Setup and select Security > Restore Master Boot Record. 2-16 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 33
    Troubleshooting Without Diagnostics Solving Hard Drive Problems (Continued) Problem Cause Nonsystem disk/NTLDR missing message. (continued) System files missing or not properly installed. Hard drive boot has been disabled in Computer Setup. Bootable hard drive is not attached as first in a
  • HP Dc7100 | Troubleshooting Guide - Page 34
    . Observe if the front panel Power LED is blinking RED and if any beeps are heard. See Appendix A, "POST Error Messages" to determine possible causes for the blinking red and beep codes. See the Worldwide Limited Warranty for terms and conditions. Attempt the normal Windows "Shut Down" procedure
  • HP Dc7100 | Troubleshooting Guide - Page 35
    is in standby mode. Press the power button to resume from standby mode. Ä 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 your data. Troubleshooting Guide www.hp.com 2-19
  • HP Dc7100 | Troubleshooting Guide - Page 36
    Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Blank screen (no video). (continued) Monitor cable is plugged into the wrong connector. Monitor settings in the computer are not compatible with the monitor. Blank screen and the power LED flashes Red five
  • HP Dc7100 | Troubleshooting Guide - Page 37
    Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Blank screen and the power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. Pre-video graphics error. Blank screen and the power LED flashes Red
  • HP Dc7100 | Troubleshooting Guide - Page 38
    coil to be activated when the monitor is powered on. None. It is normal for some monitors to make a clicking noise when turned on and off, when going in and out of standby mode, and when changing resolutions. Lower brightness and/or contrast settings. 2-22 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 39
    display menu. 2. Manually synchronize the Clock and Clock Phase on-screen display functions. To download a SoftPaq that will assist you with the synchronization, go to the following Web site, select the appropriate monitor, and download either SP20930 or SP22333: www.hp.com/support 1. Reseat the
  • HP Dc7100 | Troubleshooting Guide - Page 40
    hidden in Computer Setup. Solution Shut down all open processor-intensive applications. In Windows XP: 1. From the Control Panel, select Sounds and Audio Devices. 2. On the Audio tab, select a device from the Sound Playback list. 3. Click the Advanced button and select the Performance tab. 4. Set
  • HP Dc7100 | Troubleshooting Guide - Page 41
    Troubleshooting Without Diagnostics Solving Audio Problems (Continued) Problem Cause Solution Sound does not come out of the speaker or headphones. (continued) The external speakers are not turned on. Turn on the external speakers. External speakers plugged into the wrong audio jack. See
  • HP Dc7100 | Troubleshooting Guide - Page 42
    Troubleshooting Without Diagnostics Solving Audio Problems (Continued) Problem Cause Solution Noise or no sound comes out of the speakers or headphones. Computer may not be detecting the correct speaker/headphone type or output or analog-to-digital auto-sense is not engaged. 1. If you are
  • HP Dc7100 | Troubleshooting Guide - Page 43
    and check the power cord and electrical outlet. Install the correct printer driver for the application. Reconnect all cables. Reset the printer by turning it off for one minute, then turn it back on. Check the paper tray and refill it if it is empty. Select online. Troubleshooting Guide www.hp.com
  • HP Dc7100 | Troubleshooting Guide - Page 44
    not move using the arrow keys on the keypad. The Num Lock key may be on. Press the Num Lock key. The Num Lock light should not be on if you want to use the arrow keys. The Num Lock key can be disabled (or enabled) in Computer Setup. 2-28 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 45
    1. Press the Ctrl and Esc keys at the same time (or press the Windows logo key) to display the Start menu. 2. Use the up or down arrow conditions. Computer is in standby mode. Press the power button to resume from standby mode. Ä CAUTION: When attempting to . Troubleshooting Guide www.hp.com 2-29
  • HP Dc7100 | Troubleshooting Guide - Page 46
    . Use Windows XP Device Manager to deselect the automatic settings for the board and choose a basic configuration that does not cause a resource conflict. You can also use Computer Setup to reconfigure or disable devices to resolve the resource conflict. 2-30 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 47
    verify the proper installation. 2. Observe the beeps and LED lights on the front of the computer. See Appendix A, "POST Error Messages" to determine possible causes. 3. If you still cannot resolve the issue, contact Customer Support. Power LED flashes Red five times, once every second, followed by
  • HP Dc7100 | Troubleshooting Guide - Page 48
    Troubleshooting Without Diagnostics Solving Hardware Installation Problems (Continued) Problem Cause Solution Power LED flashes Red ten times, once every second, followed by a two second pause, and the computer beeps ten times. Bad option card. 1. Check each option card by removing the cards
  • HP Dc7100 | Troubleshooting Guide - Page 49
    . Solving Network Problems Problem Cause Wake-on-LAN feature is not functioning. Wake-on-LAN is not enabled. Network driver does not detect network controller. Network controller is disabled. Incorrect network driver. Solution Enable Wake-on-LAN. 1. Select Start > Control Panel. 2. Double
  • HP Dc7100 | Troubleshooting Guide - Page 50
    Troubleshooting Without Diagnostics Solving Network Problems (Continued) Problem Cause Network status link light never flashes. ✎ The network status light is supposed to flash when there is network activity. No active network is detected. Network controller is not set up properly. Network
  • HP Dc7100 | Troubleshooting Guide - Page 51
    the board. Reinstall the network drivers, using the Restore Plus! CD. Ensure that the cable is securely attached to the network connector and that the other end of the cable is securely attached to the correct device. Contact an authorized service provider. Troubleshooting Guide www.hp.com 2-35
  • HP Dc7100 | Troubleshooting Guide - Page 52
    -standard NIC, or change the boot sequence to boot from another source. Verify Network Connectivity, that a DHCP Server is present, and that the Remote System Installation Server contains the NIC drivers for your NIC. Contact an authorized service provider. 2-36 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 53
    Troubleshooting Without Diagnostics Solving Memory Problems If you encounter memory problems, some common causes and solutions are listed in the following table. Ä CAUTION: For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the computer will not
  • HP Dc7100 | Troubleshooting Guide - Page 54
    Troubleshooting Without Diagnostics Solving Memory Problems (Continued) Problem Cause Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. Memory is installed incorrectly or is bad. Solution 1. Reseat DIMMs. Power on the system
  • HP Dc7100 | Troubleshooting Guide - Page 55
    Problem Cause System will not boot from CD-ROM or DVD drive. Removable Media Boot is disabled in the Computer Setup utility. Network Server Mode is enabled in Computer Setup. Non-bootable CD in drive. Boot order not correct. CD-ROM or DVD devices are not detected or driver is not loaded
  • HP Dc7100 | Troubleshooting Guide - Page 56
    audio CDs is difficult or impossible. 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. 2-40 www.hp.com Troubleshooting Guide
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    Windows XP. Install the Drive Key only after the operating system boots. Solving Internet Access Problems If you encounter Internet access problems, consult your Internet Service modem. You should see a "power" LED light on the front of the cable/DSL modem. Troubleshooting Guide www.hp.com 2-41
  • HP Dc7100 | Troubleshooting Guide - Page 58
    temporarily with your Web browser. This is useful for having your browser remember some specific information that the Web server can later retrieve.) In Windows XP: 1. Select Start > Control Panel. 2. Double-click Internet Options. 3. On the General tab, click the Delete Cookies button. Cannot
  • HP Dc7100 | Troubleshooting Guide - Page 59
    , then click Properties. 7. Under Device status, verify that the modem is working properly. 8. Under Device usage, verify the modem is enabled. 9. If there are further problems, click the Troubleshoot button and follow the on-screen instructions. Troubleshooting Guide www.hp.com 2-43
  • HP Dc7100 | Troubleshooting Guide - Page 60
    the beeps and LED lights on the front of the computer. See Appendix A, "POST Error Messages" to determine possible causes. See the Restore Kit or the Worldwide Limited Warranty for terms and conditions. Use recovery diskette to scan hard drive for errors. 2-44 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 61
    reseller, dealer, or service provider for service, remember to provide the setup and power-on passwords if they are set. ✎ Refer to the number listed in the warranty or in the Support Telephone Numbers guide on the Documentation CD for technical assistance. Troubleshooting Guide www.hp.com 2-45
  • HP Dc7100 | Troubleshooting Guide - Page 62
    Troubleshooting Without Diagnostics 2-46 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 63
    lists the error codes, error messages, and the various indicator light and audible sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the probable source of the problem, and steps you can take to resolve the error condition. POST Message Disabled suppresses most
  • HP Dc7100 | Troubleshooting Guide - Page 64
    computer will beep once after a POST text message is displayed on the screen. Numeric Codes and Text Messages Code/Message Probable Cause 101-Option ROM Checksum Error System and Resetting CMOS.") 2. Remove expansion boards. 3. Replace the system board. A-2 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 65
    the configuration in Advanced > Onboard Devices. Reset the date and time under Control Panel. If the problem persists, replace the RTC battery. See the Hardware Reference Guide on the Documentation CD for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC
  • HP Dc7100 | Troubleshooting Guide - Page 66
    has been added, test using HP-only memory. 4. Verify proper memory module type. 201-Memory Error RAM failure. 1. Run Computer Setup or Windows utilities. 2. Ensure memory modules are correctly installed. 3. Verify proper memory module type. 4. Remove and replace the memory module(s) one at a time
  • HP Dc7100 | Troubleshooting Guide - Page 67
    Configuration Warning A specific error has occurred in a memory device installed in the identified socket. 1. Verify proper memory module type. 2. Try another memory socket. 3. Replace memory module if problem persists. 219-ECC Memory Module Detected ECC Modules not supported on this Platform
  • HP Dc7100 | Troubleshooting Guide - Page 68
    Computer Setup. 410-Audio Interrupt IRQ address . 411-Network Interface Card restore errors. image. 511-CPU, CPUA, or CPUB Fan not Detected CPU fan is not connected or may have malfunctioned. 1. Reseat CPU fan. 2. Reseat fan cable. 3. Replace CPU fan. A-6 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 69
    chassis, rear chassis, or front chassis fan. 514-CPU or Chassis Fan not Detected CPU or chassis fan is not connected or may have malfunctioned. 1. Reseat CPU or chassis fan. 2. Reseat fan cable. 3. Replace CPU or chassis fan. 601-Diskette Controller Error Diskette controller circuitry or floppy
  • HP Dc7100 | Troubleshooting Guide - Page 70
    . Reconnect or replace front USB harness. Reinsert riser card. 1. Remove any serial port expansion cards. 2. Clear CMOS. (See Appendix B, "Password Security and Resetting CMOS.") 3. Reconfigure card resources and/or run Computer Setup or Windows utilities. A-8 www.hp.com Troubleshooting Guide
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    POST Error Messages Numeric Codes and Text Messages (Continued) Code/Message Probable Reconfigure card resources and/or run Computer Setup or Windows utilities. 1201-System Audio Address Conflict Detected Device IRQ address conflicts with Onboard Devices. Troubleshooting Guide www.hp.com A-9
  • HP Dc7100 | Troubleshooting Guide - Page 72
    not supported by the Multibay option). (for integrated Multibay/ USDT systems) 1. Multibay device not properly seated. 2. Multibay riser not properly seated. 1. Ensure the Multibay device is fully inserted. 2. Ensure the Multibay riser is properly seated. A-10 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 73
    2. 1800-Temperature Alert Internal temperature exceeds specification. 1. Check that computer air vents are not blocked and the processor cooling fan is running. 2. Verify processor speed selection. 3. Replace the processor. 4. Replace the system board. Troubleshooting Guide www.hp.com A-11
  • HP Dc7100 | Troubleshooting Guide - Page 74
    POST Error Messages Numeric Codes and Text Messages (Continued) Code/Message Probable Cause Recommended Action 1801-Microcode Patch Error Processor is not supported by ROM BIOS. 1. Upgrade BIOS to proper version. 2. Change the processor. 1998-Master Boot Record has been Lost The previously
  • HP Dc7100 | Troubleshooting Guide - Page 75
    Error Messages Numeric Codes and Text Messages (Continued) Code/Message Probable Cause Recommended Action Network Server Mode Active and No Keyboard Attached Keyboard failure while Network Server , but is not spinning, then replace the processor fan. Troubleshooting Guide www.hp.com A-13
  • HP Dc7100 | Troubleshooting Guide - Page 76
    in which they should be performed. Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Green Power LED On. None Computer on. None Green Power LED flashes every two seconds. None Computer in Suspend to RAM mode (select models only) or normal Suspend
  • HP Dc7100 | Troubleshooting Guide - Page 77
    POST Error Messages Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED 2 flashes two times, once every second, followed by a two second pause. Processor thermal protection activated: A fan may be blocked or not turning.
  • HP Dc7100 | Troubleshooting Guide - Page 78
    POST Error Messages Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes four times, once every second, followed by a two second pause. 4 Power failure (power supply is overloaded). 1. Open the hood and ensure the 4-
  • HP Dc7100 | Troubleshooting Guide - Page 79
    POST Error Messages Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes seven times, once every second, followed by a two second pause. 7 System board failure (ROM detected failure prior to video). Replace the system
  • HP Dc7100 | Troubleshooting Guide - Page 80
    POST Error Messages Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action System does not power on and LEDs are not flashing. None System unable to power on. Press and hold the power button for less than 4 seconds. If the hard drive LED
  • HP Dc7100 | Troubleshooting Guide - Page 81
    be used in place of the power-on password as an override to log in to the computer. This is a useful feature for a network administrator. If you forget the password (F10) Utility Guide on the Documentation CD for information on backing up the CMOS settings. Troubleshooting Guide www.hp.com B-1
  • HP Dc7100 | Troubleshooting Guide - Page 82
    . The IPM can be downloaded from www.hp.com/support. 5. Remove the jumper from pins 1 and 2. Place the jumper on either pin 1 or 2, but not both, so that it does not get lost. 6. Replace the computer cover or access panel. 7. Reconnect the external equipment. B-2 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 83
    (F10) Utility Guide on the Documentation CD for Computer Setup instructions. Clearing and Resetting the CMOS The computer's configuration memory (CMOS) stores object. See the Safety & Regulatory Information guide on the Documentation CD for more information. Troubleshooting Guide www.hp.com B-3
  • HP Dc7100 | Troubleshooting Guide - Page 84
    button will not clear CMOS if the power cord is connected. CMOS button ✎ For assistance locating the CMOS button and other system board components, see the Illustrated Parts Map (IPM) for that particular system. 5. Replace the computer cover or access panel. B-4 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 85
    not, however, force hardware rediscovery. See the Desktop Management Guide on the Documentation CD for further instructions on reestablishing passwords. For instructions on Computer Setup, see the Computer Setup (F10) Utility Guide on the Documentation CD. Troubleshooting Guide www.hp.com B-5
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    Password Security and Resetting CMOS B-6 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 87
    DPS when you suspect a hard drive problem. If the computer reports a SMART Hard Drive Detect Imminent Failure message, there is no need to run DPS; instead, back up the information on the hard drive and contact a service provider for a replacement hard drive. Troubleshooting Guide www.hp.com C-1
  • HP Dc7100 | Troubleshooting Guide - Page 88
    0. ■ Test Aborted. Completion Code 1 or 2. ■ Test Failed. Drive Replacement Recommended. Completion Code 3 through 14. If the test failed, the completion code should be recorded and reported to your service provider for help in diagnosing the computer problem. C-2 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 89
    Code 0. ■ Test Aborted. Completion Code 1 or 2. ■ Test Failed. Drive Replacement Recommended. Completion Code 3 through 14. If the test failed, the completion code should be recorded and reported to your service provider for help in diagnosing the computer problem. Troubleshooting Guide www.hp
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    Drive Protection System (DPS) C-4 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 91
    the output mode back to an auto-sense or digital mode. In Microsoft Windows XP: 1. Click Start > Control Panel and then double-click the Sounds, Speech, and Audio Devices icon. 2. Select the Hardware tab. 3. Highlight the appropriate audio device. 4. Click Properties to open up the Device Properties
  • HP Dc7100 | Troubleshooting Guide - Page 92
    Setting up Analog/Digital Audio Output D-2 www.hp.com Troubleshooting Guide
  • HP Dc7100 | Troubleshooting Guide - Page 93
    problems 2-6 H hard drive problems 2-15 hardware installation problems 2-30 helpful hints 2-4 I Internet access problems 2-41 J jumper settings 2-16 K keyboard error code A-5 solving problems 2-28 testing 2-4 L LEDs blinking power A-14 blinking PS/2 keyboard A-14 Troubleshooting Guide www.hp
  • HP Dc7100 | Troubleshooting Guide - Page 94
    A-10 N network problems 2-33 numeric codes A-2 O optical drive problems 2-39 P password clearing B-1 features B-1 power-on B-1 resetting jumper B-2 setup B-1 POST enabling error messages A-1 error messages A-1 power supply problems 2-10 power-on password B-1 printer problems 2-27 problems audio 2-24
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Troubleshooting Guide
Business Desktops
Document Part Number: 361204-001
May 2004
This guide provides helpful hints and solutions for troubleshooting
the above products as well as scenarios for possible hardware and
software problems.