28Using Support Tools29Using Support Toolsdrive is installed properly and partitioned asa boot deviceEnter system setup and ensure that the boot•sequence information is correct (see theService Manual on the Dell Support websiteat support�dell�com)No timer tick interrupt — A chip on the systemboard might be malfunctioning or motherboardfailure (see the Service Manual on the DellSupport website at support�dell�com)USB over current error — Disconnect the USBdevice Your USB device needs more power forit to function properly Use an external powersource to connect the USB device, or if yourdevice has two USB cables, connect both ofthemNOTICE - Hard Drive SELF MONITORINGSYSTEM has reported that a parameter hasexceeded its normal operating range� Dellrecommends that you back up your dataregularly� A parameter out of range may or maynot indicate a potential hard drive problem —SMART error, possible hard disk drive failureThis feature can be enabled or disabled in theBIOS setup (see “Contacting Dell” on page 40for assistance)Hardware TroubleshooterIf a device is either not detected duringthe operating system setup or is detectedbut incorrectly configured, you can use theHardware Troubleshooter to resolve theincompatibilityTo start the Hardware Troubleshooter:Click1� Start → Help and SupportType2� hardware troubleshooter inthe search field and press to startthe searchIn the search results, select the option that3�best describes the problem and follow theremaining troubleshooting stepsDell DiagnosticsIf you experience a problem with yourcomputer, perform the checks in “Lockups andSoftware Problems” on page 24 and run theDell Diagnostics before you contact Dell fortechnical assistanceIt is recommended that you print theseprocedures before you beginNOTICE: Dell Diagnostics works only onDell computersStarting Dell DiagnosticsThe Dell Diagnostics is located on a hiddendiagnostic utility partition on your hard driveEnsure that the computer is connected to an1�electrical outlet that is known to be workingproperlyHold down the key while pressing the2�power button to turn on the systemFollow the on-screen instructions3�NOTE: If your computer cannot display ascreen image, running the diagnostics willstart testing the display The diagnosticswill beep while testing the display If thedisplay still does not show anything, tryconnecting an external monitor or contactDell, see “Contacting Dell” on page 40