Diagnostic Error Messages Description• Enter system setup and ensure thatthe boot sequence information iscorrect.No timer tick interrupt A chip on the system board might bemalfunctioning or motherboard failureUSB over current error Disconnect the USB device. The USBdevice needs more power for it to functionproperly. Use an external power source toconnect the USB device, or if the devicehas two USB cables, connect both ofthem.CAUTION - Hard Drive SELF MONITORINGSYSTEM has reported that a parameterhas exceeded its normal operating range.Dell recommends that you back up yourdata regularly. A parameter out of rangemay or may not indicate a potential harddrive problem.S.M.A.R.T error, possible hard disk drivefailure.Diagnostic Beep CodesNo POST with three beeps is accompanied by a blinking amber power LED. All otherbeep codes will be accompanied by a solid white power LED. Refer to the table below foreach scenario.Beep Description Failure Coverage1 BIOS ROM checksum in progress orfailure. BIOS ChipSystem board failure, covers BIOScorruption or ROM error2 No RAM Detected Memory failure3 Chipset Error (North and South BridgeChipset, DMA/IMR/Timer Error forIntel platform); Chipset ErrorSystem board FailureTime-Of-Day Clock test failure.Gate A20 failure92
