38Using Support ToolsNo boot device available — No bootablepartition on hard drive, the hard drive cable isloose, or no bootable device exists.• If the hard drive is your boot device, ensurethat the cables are connected and that thedrive is installed properly and partitioned asa boot device.• Enter system setup and ensure that the bootsequence 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 theService Manual on the DellSupport website at support.dell.com or see“Contacting Dell” on page 54 for 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 both ofthem.NOTICE - Hard Drive SELF MONITORINGSYSTEM has reported that a parameterhas exceeded its normal operating range.Dell recommends 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 drive failure.This feature can be enabled or disabled in theBIOS setup. See “Contacting Dell” on page 54for assistance.