HP dx2700 manual Diagnostic Front Panel LEDs and Audible Codes

Page 102

Troubleshooting Without Diagnostics

Diagnostic Front Panel LEDs and Audible Codes

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

flashes every two

 

Suspend to RAM

seconds.

 

mode (some

 

 

models only) or

 

 

normal Suspend

 

 

mode.

Not support wake up by mouse/keyboard.

Should be Press Power button.

CPU Fan weak

2

Processor thermal

1.

Ensure that the computer air vents

(RPM < 600) or not

 

protection

 

are not blocked and the processor

turning, Display

 

activated:

 

cooling fan is running.

Warning message

 

A fan may be

2.

Open hood, press power button,

and Long Beep for

 

blocked or not

 

and see if the processor fan spins.

5 sec and shut

 

turning.

 

If the processor fan is not

down.

 

OR

 

spinning, make sure the fan's

System Fan weak

 

 

 

The heatsink/fan

 

cable is plugged onto the system

(RPM < 600) or not

 

 

board header. Ensure the fan is

 

assembly is not

 

turning, Display

 

 

fully/properly seated or installed.

 

properly attached

 

Warning message

 

3.

If fan is plugged in and seated

 

to the processor.

and Long Beep for

 

 

 

 

properly, but is not spinning, then

5 sec and shut

 

 

 

 

 

 

replace processor fan.

down.

 

 

 

 

 

4.

Reseat processor heatsink and

 

 

 

 

 

 

 

verify that the fan assembly is

 

 

 

 

properly attached.

 

 

 

5.

Contact an authorized reseller or

 

 

 

 

service provider.

 

 

 

 

 

Red Power LED

5

Pre-video memory

1.

Reseat DIMMs. Power on the

flashes five times,

 

error.

 

system.

one every second,

 

 

2.

Replace DIMMs one at a time to

followed by a 2

 

 

 

 

 

isolate the faulty module.

second pause. Also

 

 

 

 

 

3.

Replace third-party memory with

5 simultaneous

 

 

 

 

 

HP memory.

beeps will be

 

 

 

 

 

 

 

heard.

 

 

4.

Replace the system board.

 

 

 

 

Red Power LED

6

Pre-video graphics

For systems with a graphics card:

flashes 6 times, one

 

error.

1.

Reseat the graphics card. Power

every second,

 

 

 

 

 

on the system.

followed by a 2

 

 

 

 

 

2.

Replace the graphics card.

second pause. Also

 

 

 

 

 

 

6 simultaneous

 

 

3.

Replace the system board.

beeps will be

 

 

For systems with integrated graphics,

heard.

 

 

replace the system board.

 

 

 

 

 

 

D–22

431672-001

Service Reference Guide

Image 102
Contents Service reference guide Service Reference Guide SeptemberService Reference Guide Contents Contents Front I/O Panel Housing Assembly MT chassis Installing the Operating System Microsoft Windows XP/Redflag LinuxConverting to Ntfs Associated with WinXP OS HP SoftwareWindows XP Home and XP Professional Setup Utilities and Diagnostics Features Power-On Self-Test PostComputer Setup Utilities Using Computer Setup F10 UtilitiesSetup Utilities and Diagnostics Features Computer Setup Menu Computer SetupHeading Option Description Features Sata Port For each, allows you to Heading OptionDescriptionCD-ROM Allows you to set Dvmt Mode to Parallel port Allows you to select a setting for the onboard S1 POS PnP/PCI IRQ Resources Configurations Recovering the Configuration Settings Backing up the CmosRestoring the Cmos Desktop Management Initial Configuration and DeploymentFailSafe Boot Block ROM ROM FlashDual-State Power Button Power ManagementEstablishing a User Password Using Computer Setup Password SecurityEstablishing a Supervisor Password Using Computer Setup SecurityEntering a User Password Current password/new password/new password Delimiter character as shown current passwordSurge-Tolerant Power Supply National Keyboard Delimiter CharactersSerial ATA Drive Guidelines and Features Serial ATA Hard Drive CharacteristicsSata 1.5 and 3.0 Hard Drives Sata Data Cable Sata Power CableSata Hard Drive Cables Pin Number Usage Device Plug Host PlugSata Smart Drives Drive CapacitiesWindows 2000, XP, and Linux Legacy Mode Native ModeChassis Designations Microtower MT/Small Form Factor SFFDx2708 MT Dx2700SFF Preventing Electrostatic Damage to Equipment Electrostatic Discharge InformationGenerating Static Relative Humidity Event 55% 40% 10%Recommended Materials and Equipment Personal Grounding Methods and EquipmentGrounding the Work Area Static Shielding Protection Levels Method VoltageGeneral Cleaning Safety Precautions Cleaning the Computer CaseRoutine Care Cleaning the Keyboard Cleaning the MonitorCleaning the Mouse Service Considerations Tools and Software RequirementsScrews Cables and Connectors Lithium Coin Cell BatteryHard Drives Preparation for Disassembly Access Panel MT Chassis Front Bezel MT Chassis Removing the Computer Access Panel Removing the Front Bezel Installing the Tower Stand Front Drive Bezels Removing a 5.25 Drive Bezel Blank/MT ChassisInstalling Memory Modules/MT chassis MemoryInstalling DDR2-SDRAM DIMMs SFF chassis Rotating the Easy Access Drive BayInstalling a Dimm Expansion Cards Expansion Slot Cover Lock2 PCI/PCIe Expansion Card 431672-001 Installing an Expansion Card Removing the Expansion Slot CoverInstalling an Expansion Card Removing an Expansion Card Cable Management Drives Locating Drive PositionsRemoving a Drive Drive PositionsItem Description Locating Drive Positions SFF chassis Desktop Drive PositionsRemoving an Optical Drive or Diskette Drive SFF chassis Installing an Optional Optical Drive SFF chassis Installing Guide Screws in the Optical Drive Connecting the Flat Ribbon Cable and Audio Cable Upgrading the Hard Drive SFF chassis Removing and Replacing the Hard DriveRemove the screw Slide the drive to the right of the bay Front I/O Panel Housing Assembly MT chassis System Fan Heatsink MT chassis Processor 431672-001 System Board Battery Battery Holder Power Supply Enhanced Keyboard Connector Pin AssignmentsConnector and Icon Pin Signal MouseParallel Interface Serial Interface, Powered and Non-PoweredConnector and Icon 1/8 miniphone Pin Signal MicrophoneLine-Out Audio HeadphoneLine-In Audio MonitorPin Power Pin Power for CPUConnector Pin Signal Power Cord Set Requirements General RequirementsPost Error Messages Post Error MessagesScreen Message Probable Cause Recommended Action Post Error Messages Ensure the system board Bios supports the processor Default Settings Save and ExitPost Error Messages Troubleshooting Without Diagnostics Preliminary ChecklistSolving General Problems Problem Cause SolutionStandby mode Num Lock key Problem Cause Solution Solving Hardware Installation Problems Interpreting Diagnostic Lights and Audible Codes Solving Display Problems Solving Display ProblemsSelect Enable VGA Mode Set properly Accessories System Tools Click Start All ProgramsSolving Audio Problems Solving Audio ProblemsSolving Audio Problems Where printer port is Solving Printer ProblemsSolving Printer Problems DIR C\ printer portSolving Keyboard and Mouse Problems Solving Keyboard ProblemsSolving Network Problems Solving Network ProblemsRestore Plus! CD Solving Memory Problems Solving Memory ProblemsSolving Processor Problems Solving Processor ProblemsSolving CD-ROM and DVD Problems Solving CD-ROM and DVD ProblemsSolving DiskOnKey Problems Solving Drive Key ProblemsSolving Internet Access Problems Solving Internet Access ProblemsOptions Select Start ControlPanel Delete Cookies buttonClick the Device Manager PropertiesDiagnostic Front Panel LEDs and Audible Codes Diagnostic Front Panel LEDs and Audible CodesActivity Beeps Possible Cause Recommended Action Diagnostic Front Panel LEDs and Audible Codes Diagnostic Front Panel LEDs and Audible Codes Restoring the Software Contacting Customer Support Memory
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dx2700 specifications

The HP dx2700 is a versatile and robust desktop computer designed to meet the needs of home users and small businesses alike. Launched as part of HP's line of reliable and cost-effective computing solutions, the dx2700 offers a blend of performance, reliability, and expandability, making it an attractive option for a variety of tasks.

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The dx2700 is built with expandability in mind, featuring several PCI and PCI Express slots that enable users to add components such as additional graphics cards or sound cards, enhancing the overall functionality of the system. This customizability makes it a suitable choice for those looking to upgrade their desktop to meet evolving computing demands.

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Overall, the HP dx2700 is a reliable desktop option ideal for users seeking a balance of performance, expandability, and cost-effectiveness. Its combination of robust processing power, ample storage, and customizable features makes it suitable for a range of applications, from basic web browsing to more demanding office tasks. With its durability and practical design, the HP dx2700 remains a commendable choice in the desktop market.