122 Troubleshooting ToolsblinkinggreenThe computer is in areduced power or"sleep" state.Use one of the appropriatemethods to "wake up" thecomputer. See "AdvancedFeatures" on page 45.If the problem is notresolved and you are tryingto wake the computer witha USB mouse or keyboard,substitute the mouse orkeyboard with a workingPS/2 mouse or keyboardand then try to wake thecomputer.green None. The system hardwareappears to be operatingnormally. Any issues seenmay be related to theoperating system orsoftware.(blinking)amber The BIOS is notexecuting.Ensure that the processor isseated correctly and restartthe computer (see"Processor" on page 179).If the problem is still notresolved, contact Dell fortechnical assistance (see"Contacting Dell" onpage 295).(blinking)blinkingamberA possible powersupply or power cablefailure has occurred.Perform the procedure in"Power Problems" onpage 116.If the problem is still notresolved, contact Dell fortechnical assistance (see"Contacting Dell" onpage 295).Diagnostic Lights PowerLightProblem Description Suggested Resolution