Akustisches Symptom oder Fehler Verursachende Komponente ggf. Lösung
One beep and a blank, unreadable, or flashing LCD.
  • Reseat the LCD connector
  • LCD assembly
  • External CRT
  • System board
One long and two short beeps, and a blank or unreadable LCD.
  • System board
  • LCD assembly
  • DIMM
Two short beeps with error codes.

POST error. See Numeric error codes for more help.

Two short beeps and a blank screen.
  • System board
  • DIMM
Three short beeps, pause, three more short beeps, and one short beep.
  • DIMM
  • System board
One short beep, pause, three short beeps, pause, three more short beeps, and one short beep.
  • DIMM
  • System board
Only a cursor appears. Reinstall the operating system
Four cycles of four short beeps and a blank screen. System board (Security chip)
Five short beeps and a blank screen. System board



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