
12Quick Installation Guide
Table 7 Troubleshooting Abnormal Status on System Processor LEDs
| LED Status | Possible Sources of Problem and Steps to Take | |
| 
 | 
 | |
| RUN LED does not light. | Possible source of problem: | |
| 
 | ■ | Diagnostic software is not running. | 
| 
 | Recommended actions: | |
| 
 | ■ | Contact your network supplier or 3Com | 
| 
 | 
 | Technical Support. | 
| 
 | 
 | |
| PS1 or PS2 LED lights yellow. | Possible sources of problem: | |
| 
 | ■ | Power supply is not fully inserted. | 
| 
 | ■ | Power supply is out of specification. | 
| 
 | Recommended actions: | |
| 
 | 1 | Verify that the power cord is fully inserted at | 
| 
 | 
 | both ends. | 
| 
 | 2 | If the system still does not operate, contact your | 
| 
 | 
 | network supplier or 3Com Technical Support. | 
| 
 | 
 | |
| SYS LED lights yellow. | Possible source of problem: | |
| 
 | ■ | System processor has failed. | 
| 
 | Recommended actions: | |
| 
 | 1 | Verify that the power cord is fully inserted at | 
| 
 | 
 | both ends. | 
| 
 | 2 | Contact your network supplier or 3Com | 
| 
 | 
 | Technical Support. | 
| 
 | 
 | |
| SYS LED blinks yellow. | Possible sources of problem: | |
| 
 | ■ | Hardware/software mismatch | 
| 
 | Recommended actions: | |
| 
 | 1 | If you have added a new module, remove it and | 
| 
 | 
 | reboot the system. | 
| 
 | 2 | If you have just updated software, reload the old | 
| 
 | 
 | version of software. | 
| 
 | 3 | Contact your network supplier or 3Com | 
| 
 | 
 | Technical Support for hardware/software | 
| 
 | 
 | incompatibility information. |