Cisco Systems OL-6157-01 manual System LED is amber

Chapter 3 Troubleshooting

Diagnosing Common Problems

Table 3-3 Corrupted Software Problems and Their Solutions

Symptom	Possible Cause	Resolution
System LED is amber,	Corrupted software.	Attach a monitor to the serial port to display
and all port LEDs are		the switch boot loader.
off.
		For more information, see the switch
		software configuration guide.
System LED is amber.	Nonfatal or fatal POST	Use the show post privileged EXEC
	error detected.	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

OL-6157-01 3-5