Compaq 100eu - All-in-One PC Maintenance & Service Manual page 197

Table 12-2 Diagnostic Audible Codes (continued)
Beep Definition
2 short beeps and 1 long beep
followed by long pause
3 short beeps and 1 long beep
followed by long pause
The duration of each beep or pause is defined below.
Beep/Pause Type
Short Beep
Short Pause
Long Beep
Long Pause
Possible Cause
Graphics card initialization
failed.
CPU configuration error or
invalid CPU detected before
graphics card initialized.
Action
Beeps for 1 second.
Pauses for 1 second.
Beeps for 3 seconds.
Pauses for 3 seconds.
Recommended Action
1. Reseat the graphics card.
2. Replace the graphics card.
3. Replace the system board.
1. Reseat the processor.
2. Replace the processor.
3. Replace the system board.
Interpreting POST Diagnostic Audible Codes
187