HP dx2480 manual Troubleshooting

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Troubleshooting

nIf you are working on a network, plug another computer with a different cable into the network connection. There may be a problem with the network plug or cable.

nIf you recently added new hardware, remove the hardware and see if the computer functions properly.

nIf you recently installed new software, uninstall the software and see if the computer functions properly.

nBoot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When booting the operating system, use "Last Known Configuration."

nRefer to the comprehensive online technical support at www.hp.com/support.

nRefer to "Helpful Hints" in this guide for more general suggestions.

nRun the Restore Plus! DVD to restore the original operating system and factory-installed software.

CAUTION: Running the Restore Plus! DVD will erase all data on the

hard drive.

To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-solve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat feature. Access HP Instant Support Professional Edition at: www.hp.com/go/ispe.

Access the Business Support Center (BSC) at www.hp.com/go/bizsupport for the latest online support information, software and drivers, proactive notification, and worldwide community of peers and HP experts.

If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that your service call is handled properly:

nBe in front of your computer when you call.

nWrite down the computer serial number and product ID number, and the monitor serial number before calling.

nSpend time troubleshooting the problem with the service technician.

Troubleshooting Guide

www.hp.com/in

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Contents Hardware Reference Manual Hardware Reference Guide Hardware Reference Guide Contents Security Lock Provisions Product Features Standard Configuration FeaturesFront Panel Components Front Panel ComponentsRear Panel Components Rear Panel ComponentsKeyboard Keyboard ComponentsWindows Logo Key Special Mouse FunctionsSerial Number Location Hardware Upgrades Serviceability FeaturesRemoving the Computer Access Panel Removing the Front Bezel DIMMs Installing Additional MemoryDDR2-SDRAM DIMMs Populating Dimm Sockets Installing DIMMs Installing a Dimm Removing a 5.25 Drive Bezel Blank Replacing or Upgrading a Drive Locating Drive Positions Drive PositionsRemoving a Drive Hard disk is inserted or slide out from the back Replacing a Drive Sliding the Drives into the Drive Cage Sliding the Hard Drive into the Drive Cage Install Second Hard Disk Hardware Upgrades Hardware Upgrades Removing or Installing an Expansion Card Releasing the Slot Cover Lock Removing an Expansion Slot Cover Removing an Expansion Card Replacing or Adding an Expansion Card Securing the Expansion Cards and Slot Covers Reassembling the Computer Turn on the computer by pressing the power button Battery Replacement Hardware Reference Guide Power Supply Notice Power Supply Label Chassis Intrusion Switch Installing a Security LockMechanical Lock Preventing Electrostatic Damage Grounding MethodsHardware Reference Guide Computer Operating Guidelines and Routine Care Safety Optical Drive PrecautionsCleaning OperationShipping Preparation Computer Setup F10 Utility Guide Computer Setup F10 Utility Guide Contents Contents Computer Setup F10 Utility Computer Setup F10 UtilitiesUsing Computer Setup F10 Utilities Computer Setup F10 Utility Computer Setup Heading Option DescriptionCHS 1MB 3BC/IRQ7 Computer Setup Heading Option Description Troubleshooting Guide Troubleshooting Guide Computer Diagnostic Features HP Insight DiagnosticsAccessing HP Insight Diagnostics Survey Tab Test Tab UnattendedStatus Tab Saving and Printing Information in HP Insight Diagnostics Log TabDownloading the Latest Version of HP Insight Diagnostics Troubleshooting Safety and Comfort Before You Call for Technical SupportTroubleshooting Run the Restore Plus! DVD Helpful HintsTroubleshooting Solving General Problems Problem Cause SolutionTo permit required airflow Cable connections are Problem Cause Solution Solving Hardware Installation Problems Interpreting Diagnostic Lights and Audible Codes Problem CauseDiagnostic Front Panel LEDs and Audible Codes Diagnostic Front Panel LEDs and Audible Codes Restoring the Software Contacting Customer Support