39Using Support ToolsNo timer tick interrupt — A chip on the systemboard might be malfunctioning or motherboardfailure (see “Contacting Dell” on page 52for assistance).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 bothof them.NOTICE - 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 —S.M.A.R.T error, possible hard disk drive failure.This feature can be enabled or disabled in theBIOS setup (see “Contacting Dell” on page 52for 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 theincompatibility.To start the Hardware Troubleshooter:Click1. Start → Help and Support.Type2. hardware troubleshooter inthe search field and press to startthe search.In the search results, select the option that3.best describes the problem and follow theremaining troubleshooting steps.Dell DiagnosticsIf you experience a problem with yourcomputer, perform the checks in “Lockups andSoftware Problems” on page 56 and run theDell Diagnostics before you contact Dell fortechnical assistance.