System Messages And Power Problems; Useful Cli Commands - Cisco Catalyst 4500e Series Installation Manual

Chapter 5 Troubleshooting
Step 6 If the LED labeled FAN OK fails to light when the switch is connected to a good power source with a
known good power cord, there is a malfunction in the fan that cools the power supply. Replace the power
supply.
If a second power supply is available, install it in the second power supply bay.
Step 7
Step 8 Check that the LED labeled GOOD is on for the additional power supply. Check that the LED labeled
FAIL is off.
If the LEDs are not on, repeat the previous procedure to troubleshoot the second power supply.
Step 9
If you are unable to resolve the problem, or if you determine that either a power supply or backplane
connector is faulty, contact Cisco Technical support for instructions.

System Messages and Power Problems

Check for system messages related to the power supply, and refer to the system message guide for your
software release. You may need to add a power supply or upgrade to a larger one for your current
configuration or verify that the switches are set properly on the power supply. Connect a terminal to the
console port, and look for any of the following system messages (there may be others, depending on the
software release):
If you see any of these messages or other messages, go to the following location and enter the message
text to find recommendations for your situation.
http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi

Useful CLI Commands

You may also use the show environment status powersupply, show module all, and show power
commands to monitor PS status, load, and activity.
OL-13972-01
C4K_CHASSIS-2-INLINEPOWEROFF
C4K_IOSMODPORTMAN-4-INLINEPOWERSUPPLYBAD
C4K_IOSMODPORTMAN-4-INLINEPOWEROVERMAX
C4K_CHASSIS-2-INSUFFICIENTPOWERDETECTED
C4K_CHASSIS-2-INSUFFICIENTPOWERSHUTDOWN
C4K_CHASSIS-3-INSUFFICIENTPOWER
C4K_CHASSIS-3-INSUFFICIENTPOWERSUPPLIESDETECTED
C4K_CHASSIS-3-MIXINPOWERDETECTED
C4K_IOSMODPORTMAN-3-UNKNOWNPOWERSUPPLY
C4K_IOSMODPORTMAN-4-POWERSUPPLYBAD
C4K_IOSMODPORTMAN-4-POWERSUPPLYFANBAD
C4K_SUPERVISOR-3-POWERSUPPLYSTATUSREADFAILED
C4K_SUPERVISOR-3-POWERSUPPLYSEEPROMREADFAILED
C4K_SUPERVISOR-3-POWERSUPPLYSEEPROMINVALID
Troubleshooting the Power Supply
Catalyst 4500 E-Series Switches Installation Guide
5-5