Light Pattern Problem Description Troubleshooting StepsDiagnostic LEDs Power Button LEDdiscrete graphiccard.• Ensure that all harddrives and opticaldrive cables areproperly connectedto the system board.• If there is an errormessage on thescreen identifying aproblem with adevice (such as thefloppy drive or harddrive), check thedevice to make sureit is functioningproperly.• If the operatingsystem isattempting to bootfrom a device (suchas the floppy driveor optical drive),check system setupto ensure the bootsequence is correctfor the devicesinstalled on yourcomputer.Error MessagesErrors That Halt the System CompletelyThe following is a list of BIOS error messages that will halt the system completely, requiring you to cycle the system'spower:• Error! Memory configured incorrectly. Please enter Setup for Memory Info details.• Alert! Processor Cache Size Mismatch.• Alert! Processor Type Mismatch.• Alert! Processor Speed Mismatch.• Alert! Incompatible Processor detected.Errors That Soft Halt the SystemThe following is a list of BIOS error messages that will cause a soft halt of the system and the user will be prompted topress F1 to continue or F2 to enter the system setup:• Alert! Air temperature sensor not detected.• Alert! Card-cage fan failure.• Alert! CPU 0 fan failure.107
