Basic Troubleshooting Steps 85TroubleshootingBasic Troubleshooting StepsThis section lists some basic troubleshooting steps you can use to resolvecommon issues with your computer.• Make sure your computer is switched on and all the components arereceiving power.• Make sure all the cables are firmly connected to the respective ports.• Make sure that the cables are not damaged or frayed.• Make sure that there are no bent or broken pins on the connectors.• Restart your computer and check whether the problem persists.• For internet connection issues, unplug your modem and router fromthe electrical outlet, wait for about 30 seconds, plug in the powercables, and try connecting again.NOTE: For more information on troubleshooting, solutions tocommon problems, and FAQs, see dell.com/support. To contact Dellfor technical support. see “Contacting Dell”.DiagnosticsYour computer has built-in diagnostic tools to help you determine theissue with you computer. These tools may notify you of a problem usingerror messages, light codes, or beep codes.Pre-Boot System AssessmentYou can use the Pre-Boot System Assessment (PSA) to diagnose varioushardware problems. The ePSA tests devices such as the system board,keyboard, display, memory, hard drive, and so on.NOTE: PSA may not be supported on all computers.Invoking PSA1. Turn on or restart your computer.2. Press at the Dell logo to access the Boot Menu.NOTE: If you wait too long and the operating system logo appears,continue to wait until you see the Windows desktop, then restartyour computer and try again.