HP dx2480 manual Troubleshooting

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Troubleshooting

nReconfigure the computer after installing a nonplug and play expansion board or other option. See "Solving Hardware Installation Problems" for instructions.

nBe 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 (diskette, CD, or USB device) from the system before turning it on.

nIf you have installed an operating system other than the factory- installed operating system, check to be sure that it is supported on the system.

nIf the system has multiple video sources* installed 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.

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

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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 Installing Additional Memory DIMMsDDR2-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 Installing a Security Lock Chassis Intrusion SwitchMechanical Lock Preventing Electrostatic Damage Grounding MethodsHardware Reference Guide Computer Operating Guidelines and Routine Care Optical Drive Precautions CleaningSafety 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