HP 500B VS695UT 505B Solving General Problems, Computer date and time display is incorrect Cause

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●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 (DVD 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.

Solving General Problems

You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

Computer appears locked up and will not turn off when the power button is pressed.

Cause

Solution

Software control of the power switch is not functional.

1.Press and hold the power button for at least four seconds until the computer turns off.

2.Disconnect the power cord from the electrical outlet.

Computer date and time display is incorrect.

Cause

Solution

RTC (real-time clock) battery may need to be replaced.

NOTE: Connecting the computer to a live AC outlet prolongs the life of the RTC battery.

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.

74 Appendix C Troubleshooting Without Diagnostics

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Contents Maintenance & Service Guide Page About This Book Iv About This Book Table of contents Appendix a Computer F10 Setup USB 102 Chassis Designations Product DescriptionHP 500B/505B Compaq 500B/505B, Compaq 510B/515B Product Description Removal and Replacement Procedures Microtower MT Chassis Preparation for DisassemblyAccess Panel 2Removing the Computer Access PanelPage Front Bezel 4Removing the Front BezelPage Memory DDR3-SDRAM DIMMs1DIMM Socket Locations Populating Dimm SocketsDescription Socket Color Installing Memory Modules 8DIMM locations 500B shown MemoryPage 2Expansion Slot Locations Expansion CardsItem Description PCI Express x1 expansion slot PCI expansion slot 14Removing the bracket cover Expansion Cards Page 18Lifting the card from the computer Expansion Cards Page Page Page Cable Connections Connector Name Connector Color DescriptionCable Management 3Cable connections 500B/510B4Cable connections 505B/515B Installing Additional Drives DrivesSystem Board Drive Connections 5System Board Drive ConnectionsRemoving an Optical Drive Page Replacing an Optical Drive Removing a Hard Drive 36Disconnecting the hard drive cables Drives Page Replacing a Hard Drive Page Front I/O and USB Panel Housing Assembly Power Switch/LED Assembly Remove the optical drive Removing an Optical Drive onSystem Fan Heat sink assembly Intel Model 500B/510B Heat sink assembly AMD Model 505B/515B Processor Intel Model 500B/510B Page Processor AMD Model 505B/515B Power Supply Page 52Disconnecting the power cable Power Supply Page 56Removing the power supply screws Power Supply Page 59Power supply securing features System BoardBattery Type 1 Battery Holder Type 2 Battery Holder Type 3 Battery HolderPage Model 500B/510B Computer Setup F10 Utilities Computer F10 SetupUsing Computer Setup F10 Utilities Computer Setup-Main Table A-1Computer Setup-MainComputer Setup-Advanced Table A-2Computer Setup-AdvancedComputer Setup-Power Table A-3Computer Setup-PowerS5 Maximum Power SavingsComputer Setup-Boot Table A-4Computer Setup-BootComputer Setup-Exit Model 505B/515B Computer Setup F10 UtilitiesTable A-5Computer Setup-Exit Table A-6Computer Setup-Main Table A-7Computer Setup-Advanced Password Table A-8Computer Setup-PowerOther Appendix a Computer F10 Setup Priority CD-ROM Group Boot Table A-9Computer Setup-BootScreen Boot Device Priority Boot Priority Network Group BootTable A-10Computer Setup-Exit Table B-1Diagnostic Beep Codes DiagnosticsInterpreting Diagnostic Beep Codes Beeps Diagnosis Recommended actionLED Codes State LED StatusTesting Memory Modules Accessing HP Insight DiagnosticsReason Result Improperly installed Post Error/Warning MessagesDefective Power Button/Power Button LED Using the Setup UtilityBios Updates Clearing CmosPage Troubleshooting Without Diagnostics Safety and Comfort Before You Call for Technical SupportHelpful Hints Solving General Problems Computer date and time display is incorrect CauseComputer is beeping and will not start Cause Solving Power ProblemsPoor performance is experienced Cause Solution Computer will not turn on CauseSolving Hard Drive Problems Drive not found identified Cause SolutionSolving Media Card Reader Problems Blank screen no video Cause Solution Solving Display ProblemsPicture is broken up, rolls, jitters, or flashes Cause Sound cuts in and out Cause Solving Audio ProblemsSolving Keyboard and Mouse Problems No sound CauseSolving Network Problems Diagnostics reports a failure CauseSolving Memory Problems Solving Memory ProblemsSolving CD-ROM and DVD Problems Headphone or microphone is not working Cause Solution Solving Front Panel Component ProblemsUSB device is not recognized by the computer Cause Connector and Icon Pin Signal Connector Pin AssignmentsPin Power for CPU Ethernet BNCHeadphone Pin SignalMicrophone Line-in AudioSignal Pin Pin PowerConnector MonitorX1, x4, x8, and x16 PCI Express Connector Pin a Signal PCI ExpressX1, x4, x8, and x16 PCI Express Connector Pin B Signal GND PRSNT2# Rsvd Generating Static Routine Care and Disassembly PreparationElectrostatic Discharge Information Relative Humidity Event 55% 40% 10%Personal Grounding Methods and Equipment Preventing Electrostatic Damage to EquipmentStatic Shielding Protection Levels Recommended Materials and Equipment Grounding the Work AreaMethod Voltage Operating Guidelines Cleaning the Keyboard General Cleaning Safety PrecautionsCleaning the Computer Case Routine CareCleaning the Mouse Service ConsiderationsCleaning the Monitor Power Supply FanScrews Cables and ConnectorsTools and Software Requirements Hard DrivesLithium Coin Cell Battery Sata Hard Drives Serial ATA Sata Drive Guidelines and FeaturesSerial ATA Hard Drive Characteristics Sata Hard Drive CablesSmart ATA Drives Hard Drive CapacitiesJapanese Power Cord Requirements Power Cord Set RequirementsGeneral Requirements Country-Specific Requirements Country Accrediting AgencySpecifications Table H-1SpecificationsAcoustic noise Symbols/Numerics IndexSata
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