Manuals / HP / Computer Equipment / Desktops

HP dc7608 manual Post Diagnostic Front Panel LEDs and Audible Codes

Models: dc7608

1 268

Download 268 pages 57.23 Kb

Page 223

POST Error Messages

POST Diagnostic Front Panel LEDs and Audible Codes

✎

✎

✎

This section covers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them.

If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on the front panel of the computer and refer to the following table to determine the front panel LED codes.

Recommended actions in the following table are listed in the order in which they should be performed.

Beeps will occur only for 5 iterations and then stop. LEDs will continue to blink until corrective action is taken.

POST Diagnostic Front Panel LEDs and Audible Codes

Activity	Beeps	Possible Cause	Recommended Action

Green Power LED	None	Computer on.	None
On.

Green Power LED	None	Computer in	None required. Press any key or move the
flashes every two		Suspend to RAM	mouse to wake the computer.
seconds.		mode (some
		models only) or
		normal Suspend
		mode.

Red Power LED	2	Processor thermal	Ensure that the computer air vents are not
flashes two times,		protection	blocked and the processor cooling fan is
once every		activated:	running.
second, followed		A fan may be	Open hood, press power button, and see
by a two second		blocked or not	if the processor fan spins. If the processor
pause.		turning.	fan is not spinning, make sure the fan's
		OR	cable is plugged onto the system board
		The heatsink/fan	header. Ensure the fan is fully/properly
		The heatsink/fan	seated or installed.
		assembly is not	seated or installed.
		assembly is not	If fan is plugged in and seated properly,
		properly attached	If fan is plugged in and seated properly,
		to the processor.	but is not spinning, then replace processor
			fan.
			Reseat processor heatsink and verify that
			the fan assembly is properly attached.
			Contact an authorized reseller or service
			provider.

Red Power LED	3	Processor not	Check to see that the processor is present.
flashes three times,		installed (not an	Reseat the processor.
once every		indicator of bad
second, followed		processor).
by a two second
pause.

Service Reference Guide, dc7600

390742-002

C–9

Image 223

HP dc7608 manual Post Diagnostic Front Panel LEDs and Audible Codes, Activity Beeps Possible Cause Recommended Action

Contents

Service reference guide Page February Service Reference GuideService Reference Guide Contents Serial and Parallel ATA Drive Guidelines and Features Diskette Drive Bezel or Bezel Blank Computer Access Panel Service Reference Guide, dc7600 390742-002 Vii Contents Viii 390742-002 Installing or Upgrading Device Drivers Installing the Operating SystemHP Software Transferring Files and SettingsBacking Up and Restoring Files Converting to NtfsInstalling the Operating System Installing the Operating System 390742-002 Power-On Self-Test Post Setup Utilities and Diagnostics FeaturesComputer Setup Utilities Using Computer Setup F10 Utilities Computer Setup Menu Drive Emulation Diskette TypeDrive Type Emulation Options Multisector Transfers ATA disks only Default Values IDE/SATATranslation Mode ATA disks only Storage Options Removable Media BootPrimary Sata Controller Bios DMA Data TransfersSata Emulation IDE ControllerThis feature is supported on some models only Shortcut to Temporarily Override Boot OrderController some models, Scsi controllers some models, Security Data Execution Enable/Disable Prevention Lost Text F12=Network Service Boot during PostPCI VGA Left and right keys to select the Advanced Device Options Recovering the Configuration Settings HP Insight DiagnosticsAccessing HP Insight Diagnostics Survey Tab Test Tab Status Tab Saving and Printing Information in HP Insight DiagnosticsLog Tab Select HP Insight Diagnostics and click Download Downloading the Latest Version of HP Insight DiagnosticsDesktop Management Initial Configuration and DeploymentAltiris Deployment Solution Agent Remote System InstallationHP Local Recovery HP System Software Manager Software Updating and ManagementHP Client Manager HP Client Management Solutions using Altiris Dantz Retrospect Express Proactive Change Notification Retired SolutionsSubscriber’s Choice HPQFlash Boot Block Emergency Recovery ModeROM Flash Remote ROM FlashCopying to Single Computer Replicating the SetupCopying to Multiple Computers Repset.exe Supported USB Flash Media DeviceUnsupported USB Flash Media Device Return to Copying to Multiple Computers World Wide Web Site Dual-State Power ButtonBuilding Blocks and Partners Feature Description Computer Setup Utilities F10 Security FeaturesAsset Tracking and Security This feature is supported on some models only and will only Intel Virtualization Technology some models Feature Purpose How It Is Established Password SecurityEstablishing a Setup Password Using Computer Setup Mechanical Security FeaturesEntering a Power-On Password Establishing a Power-On Password Using Computer SetupCurrent password Current password/new password/new passwordNational Keyboard Delimiter Characters DriveLockUsing DriveLock Smart Cover Sensor Level Setting DescriptionSmart Cover Sensor Protection Levels Locking the Smart Cover Lock Drive Protection System Fault Notification and RecoverySurge-Tolerant Power Supply Cable Lock ProvisionSata Identification Color Port Sequence Serial ATA Hard Drive CharacteristicsSata 1.5 and 3.0 Hard Drives AttachmentPin Number Usage Device Plug Host Plug Sata Power CableSata Hard Drive Cables Sata Data CablePata Cables Parallel ATA MultiBay Hard Drive CharacteristicsPin Signal Pata Device InformationPata Power Cable Pata Drive Installation GuidelinesPata Device Classes Drive Capacities ATA Smart DrivesWindows 2000 and XP Windows 9x, NT, and Linux Native Mode Legacy ModeHard Drive Order Letter Ordering Mixed Devices Boot and Drive Letter OrderingHDD Boot and Drive Sata EmulationService Reference Guide, dc7600 Convertible Minitower CMT Chassis DesignationsSmall Form Factor SFF Ultra-Slim Desktop Relative Humidity Event 55% 40% 10% Electrostatic Discharge InformationGenerating Static Preventing Electrostatic Damage to EquipmentStatic Shielding Protection Levels Method Voltage Personal Grounding Methods and EquipmentGrounding the Work Area Recommended Materials and EquipmentOperating Guidelines General Cleaning Safety PrecautionsRoutine Care Cleaning the Keyboard Cleaning the Computer CasePower Supply Fan Service ConsiderationsCleaning the Monitor Cleaning the MouseScrews Cables and ConnectorsHard Drives Lithium Coin Cell Battery Service Reference Guide, dc7600 Preparation for Disassembly Unlocking the Smart Cover Lock Hood Sensor Cable Lock External Security DevicesPadlock Computer Access Panel Front Bezel 1 5.25 Drive Bezel Blank Front Drive BezelsDiskette Drive Bezel or Bezel Blank Cable Management Memory Service Reference Guide, dc7600 390742-002 Expansion Cards Service Reference Guide, dc7600 390742-002 390742-002 Service Reference Guide, dc7600 390742-002 PCI Retainer Latch Service Reference Guide, dc7600 390742-002 Expansion Card Guide Drive Positions DrivesDrive Positions Hard Drive Service Reference Guide, dc7600 390742-002 Optical Drive Service Reference Guide, dc7600 390742-002 390742-002 Diskette Drive Front I/O Device Power Switch Assembly System Board 390742-002 Type 1 Battery Holder Type 2 Battery Holder Type 3 Battery Holder Heatsink Processor Service Reference Guide, dc7600 390742-002 Speaker Chassis Fan Power Supply Changing from Desktop to Minitower 390742-002 Service Reference Guide, dc7600 390742-002 Changing from Minitower to Desktop Service Reference Guide, dc7600 390742-002 390742-002 Preparation for Disassembly Unlocking the Smart Cover Lock Service Reference Guide, dc7600 390742-002 Hood Sensor Security Clip Without Security Cable Universal Chassis Clamp LockService Reference Guide, dc7600 390742-002 With Security Cable Service Reference Guide, dc7600 390742-002 Computer Cover Front Drive Bezels Item Description There are three drive bezel inserts that are availableCable Management Memory Service Reference Guide, dc7600 390742-002 Expansion Card Retainer Vertically Oriented Expansion CardPCI Expansion Card 390742-002 PCI Express Expansion Card PCI Riser Card Assembly and Backwall Service Reference Guide, dc7600 390742-002 390742-002 Service Reference Guide, dc7600 390742-002 390742-002 Service Reference Guide, dc7600 390742-002 Drives Optical Drive 390742-002 External 3.5-inch Drive 390742-002 Primary Hard Drive 390742-002 Service Reference Guide, dc7600 390742-002 390742-002 Fan Shroud Front I/O Devices Power Switch Assembly Heatsink Processor 390742-002 Speaker Power Supply Service Reference Guide, dc7600 390742-002 System Board Service Reference Guide, dc7600 390742-002 390742-002 Chassis Fan Service Reference Guide, dc7600 Type 1 Battery Holder Type 2 Battery Holder Type 3 Battery Holder Service Reference Guide, dc7600 Preparation for Disassembly 390742-002 Installing a Padlock Installing a Cable LockComputer Access Panel MultiBay Device MultiBay Riser Card Front Panel Assembly Front Bezel Chassis Fan Cable Management Memory 390742-002 Expansion Card Cage Expansion Card Service Reference Guide, dc7600 390742-002 Expansion Card Retaining Latch Hood Sensor Hard Drive Service Reference Guide, dc7600 390742-002 Front I/O Device Heatsink Assembly Processor Service Reference Guide, dc7600 390742-002 Power Supply 390742-002 Type 1 Battery Holder Type 2 Battery Holder Type 3 Battery Holder Speaker System Board Ethernet BNC Connector and Icon Pin SignalKeyboard MouseEthernet AUI Ethernet RJ-45Microphone Serial Interface, Powered and Non-PoweredConnector and Icon 1/8 miniphone Pin Signal Parallel InterfaceScsi Low Voltage Differential/Single Ended LVD/SE HeadphoneLine-In Audio Line-Out AudioExternal Infrared Transceiver Ultra ScsiMonitor ATA/ATAPI IDE Standard Drive Cable Connector Pin SignalMultiBay CD-ROM Adapter Pin MicroFit Power Pin PowerPin Power for CPU Sata Data and Power Drive Connector Pin Signal PCI Express X1, x4, x8, and x16 PCI Express Connector Pin a SignalPin B information is on the next GND PRSNT2# Rsvd X1, x4, x8, and x16 PCI Express Connector Pin B SignalDVI Connector Connector Pin Assignments 390742-002 General Requirements Japanese Power Cord RequirementsAccrediting Country Agency Country-Specific RequirementsPost Error Messages Post Error MessagesScreen Message Probable Cause Recommended Action Devices Post Error Messages Advanced Onboard Devices Onboard Devices For integrated MultiBay SP5572.EXE SNZERO.EXE CPU fan not installed or Post Diagnostic Front Panel LEDs and Audible Codes Post Diagnostic Front Panel LEDs and Audible CodesActivity Beeps Possible Cause Recommended Action Desktop Management Guide on Board is turned on. If it is turned on, then Post Error Messages 390742-002 Preliminary Checklist Troubleshooting Without DiagnosticsSolving Minor Problems Solving Minor ProblemsTroubleshooting Without Diagnostics Solving Minor Problems Solving Power Supply Problems Solving Power Supply ProblemsProblem Cause Solution Solving Diskette Problems Solving Diskette ProblemsSecurity Password Options Tools. Under Error-checkingRemovable Media Boot Network Server ModeSolving Hard Drive Problems Solving Hard Drive ProblemsSata Boot Order listSolving Display Problems Solving MultiBay ProblemsSolving Display Problems Solving MultiBay ProblemsSelect Enable VGA Mode Set properly Click Start All Programs Accessories System ToolsImageControl/Horizontal Position or VerticalPosition toSolving Audio Problems Solving Audio ProblemsSpeech and Audio Sure Enable digital CDDevice Manager button Audio for this CD-ROMSolving Keyboard and Mouse Problems Solving Printer ProblemsSolving Keyboard and Mouse Problems Solving Printer ProblemsCursor will not move using Solving Hardware Installation Problems Solving Hardware Installation ProblemsOn the system to see if fault goes Solving Network Problems Solving Network ProblemsRestore Plus! CD Solving Memory Problems Solving Memory ProblemsSolving CD-ROM and DVD Problems Solving Processor ProblemsSolving CD-ROM and DVD Problems Solving Processor ProblemsCD-ROM, CD-RW Solving Front Panel Component Problems Solving Drive Key ProblemsSolving Front Panel Component Problems Solving Drive Key ProblemsSolving Internet Access Problems Solving Internet Access ProblemsProperties Click the Device ManagerTroubleshooting Without Diagnostics 390742-002 Designator Component System Board and Riser Board Reference DesignatorsComponent DesignatorSW2 LOM1 Dimm Sockets DDR2-SDRAM DIMMsDescription Socket Color System board shown may differ from the one in your productIndex Index Index-3 Pata Sata SFF Usdt Index Index-8 390742-002