25Using Support ToolsEnter 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 ofthem.NOTICE - Hard Drive SELF MONITORING SYSTEMhas reported that a parameter has exceeded itsnormal operating range. Dell recommends thatyou back up your data regularly. A parameterout of range may or may not indicate a potentialhard drive problem — S.M.A.R.T error, possiblehard disk drive failure. (see “Contacting Dell” onpage 34 for 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.