Troubleshoot with beep signal
by TUSAR on Sep.17, 2009, under Computer Tips
1. 1 short beep Normal POST – system is ok
2. 2 short beeps POST Error – error code shown on screen
3. No beep Power supply or system board problem
4. Continuous beep Power supply, system board, or keyboard problem
5. Repeating short beeps Power supply or system board problem
6. 1 long, 1 short beep System board problem
7. 1 long, 2 short beeps Display adapter problem (MDA, CGA)
8. 1 long, 3 short beeps Enhanced Graphics Adapter (EGA)
9. 3 long beeps 3270 keyboard card