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. Beep Codes
Beep Code | Error | Probable Causes |
|
|
|
Invalid | Improperly seated expan- | |
| ROM checksum | sion card, or system needs to |
|
| be rebooted. |
|
|
|
Invalid BIOS ROM | Corrupted BIOS firmware | |
| checksum | or defective system board. |
|
|
|
DRAM refresh failure | Defective DIMMs or system | |
|
| board. Reseat DIMMs or |
|
| replace system board. |
|
|
|
Keyboard controller | Defective DIMMs or system | |
| error | board. Reseat DIMMs or |
|
| replace system board. |
|
|
|
Beep Codes and Error Messages |