HP DX2250 manual Enww

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holding the power button for at least four seconds then press the power button again to restart the computer. If the system will not shut down, unplug the power cord, wait a few seconds, then plug it in again. The computer will restart if automatic start on power loss is set in Computer Setup. If it does not restart, press the power button to start the computer.

Reconfigure your computer after installing a non–plug and play expansion board or other option.

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 (diskette, CD, 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 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.

8 Chapter 2 Troubleshooting

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Contents Troubleshooting Guide dx2250 Microtower Model Troubleshooting Guide About This Book Iv About This Book Table of contents Enww HP Insight Diagnostics Accessing HP Insight DiagnosticsSurvey Tab Select the Test Mode Interactive or Unattended Test TabHelp Tab Status TabLog Tab Saving and Printing Information in HP Insight Diagnostics Downloading the Latest Version of HP Insight DiagnosticsTroubleshooting Safety and Comfort Before You Call for Technical SupportHelpful Hints Enww Cause Solution Solving General ProblemsComputer will not turn on Cause Solution Computer date and time display is incorrect Cause Solution Poor performance is experienced Cause SolutionBlank screen no video Cause Solution Startup, go to Start Run Microsoft Windows XP orEnww Solving Hardware Installation Problems Computer will not start Cause SolutionInterpreting Diagnostic Lights Activity Possible Cause Recommended ActionInterpreting Diagnostic Lights HP Backup and Recovery Manager Contacting Customer Support
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