Cisco WS-C2940-8TT-S Hardware Installation Manual page 53

Chapter 3 Troubleshooting
Table 3-3
Symptom
System LED is amber,
and all port LEDs are
off.
System LED is amber.
OL-6157-01
Corrupted Software Problems and Their Solutions
Possible Cause
Corrupted software.
Nonfatal or fatal POST
error detected.
Diagnosing Common Problems
Resolution
Attach a monitor to the serial port to display
the switch boot loader.
For more information, see the switch
software configuration guide.
Use the show post privileged EXEC
command to see which POST test failed.
POST failures are usually fatal. Contact
your Cisco representative if your switch
does not pass POST.
Catalyst 2940 Switch Hardware Installation Guide
3-5