Beep/Symptom FRU/ActionThree Short Beeps 1. DIMM2. System BoardOne Continuous Beep 1. Processor2. Optional Processor (if installed)3. System BoardRepeating Short Beeps 1. Keyboard2. System BoardOne Long and One Short Beep 1. Video adapter (if present)2. System BoardOne Long and Two Short Beeps 1. Video adapter (if present)2. System BoardTwo Long and Two Short Beeps 1. Video adapterNo Beep symptomsNo Beep Symptom FRU/ActionNo beep and the systemoperates correctly. 1. Check speaker cables2. Speaker3. System BoardNo Beeps occur aftersuccessfully completing POST(The Power-On Status isdisabled.)1. Run Configuration/Setup, set the Start Options Power-On Status to enable.2. Check speaker connectionl3. System BoardNo ac power(Power supply acLED is off) 1. Check the power cord.2. Power Supply (If two are installed, swap them to determine if one isdefective.)3. Power Backplane4. Hot-Swap Power AC Inlet BoxNo beep and no video 1. See “Undetermined problems” on page 100System will not power-up(Power supply ac LED is on) 1. See“Power supply LED errors” on page 90Information panel system error LEDThe system error LED is turned on when an error is detected. If the system errorLED is on, remove the cover and check the diagnostic panel LEDs. The followingis a complete list of diagnostic panel LEDs followed by the FRU/Action forcorrecting the problem. The following chart is valid only when the system errorLED is on.Note: If a diagnostic panel LED is on and the information LED panel system errorLED is off, there is probably an LED problem. Run LED diagnostics.Notes:1. To locate the LEDs on the system board see “System board LED locations” onpage 40.Symptom-to-FRU index 83
