
Appendix A: BIOS POST Error Codes
Appendix A
BIOS Error Beep Codes
During the POST 
Fatal errors are those which will not allow the system to continue the 
A-1  BIOS Error Beep Codes
BIOS Error Beep Codes
Beep Code
1 beep
Error Message
Refresh
Description
Circuits have been reset. (Ready to power up)
| 5 short beeps + 1 long | Memory error | No memory detected in the | 
| beep | 
 | system | 
| 
 | 
 | 
 | 
| 8 beeps | Display memory | Video adapter missing or with | 
| 
 | read/write error | faulty memory | 
| 1 continuous beep | System Overheat | 1 continuous beep with the | 
| (with the front panel | 
 | front panel OH LED on | 
| OH LED on) | 
 | 
 |