Chapter 3
Beep Codes and Error Messages
This chapter describes beep codes and system error messages that can occur during system
If a faulty system does not emit beep codes or display system error messages to indicate a failure, you should use the
POST Beep Codes
If the monitor cannot display error messages during the POST, the system may emit a series of beeps that identifies the problem or that can help you identify a faulty component or assembly. Table
When the system emits a beep code, record the code and then find it in
Table
Table 3-1. POST Beep Codes
Beep Code | Error | Probable Causes |
|
|
|
Monitor not detected | Disconnected or faulty moni- | |
|
| tor |
|
|
|
NVRAM write/read failure | Defective system board | |
|
|
|
BIOS checksum failure | Faulty BIOS or defective sys- | |
|
| tem board |
|
|
|
Programmable | Defective system board | |
| failure |
|
DMA initialization failure |
| |
DMA page register write/ |
| |
| read failure |
|
|
|
|
Beep Codes and Error Messages |