Identifying Startup Problems; Troubleshooting The Power Supply Module - Cisco Catalyst 6807-XL Hardware Installation Manual

Identifying Startup Problems

• Fan tray assembly
Identifying Startup Problems
LEDs indicate all system states in the startup sequence. By checking the LEDs, you can determine when and
where the system failed in the startup sequence.
Procedure
Step 1 Turn on the power supplies. You should immediately hear the system fan tray assembly begin to operate.
• If you do not hear the fans operating, see the
• If you determine that the power supplies are functioning normally and that the fan tray assembly is
• If the fan tray assembly does not function properly at initial startup, there are no installation adjustments
Step 2 If the startup information and system banner do not display at startup, verify that the terminal is set correctly
and that it is connected properly to the console port.

Troubleshooting the Power Supply Module

If the INPUT OK LED does not light up after you turn on the power switch, follow these steps to isolate a
power subsystem problem:
Procedure
Step 1 Verify that the INPUT OK LED on the PSM is green.
a) If the IN LED is green, the AC source is good and the power supply is functional.
b) If the IN LED is off, ensure that the PSM is flush with the back of the chassis. Turn off the power switch,
tighten the captive installation screw, and then turn on the power switch.
c) If the IN LED remains off, there might be a problem with the AC source or the power cord.
d) Turn off the power to the switch, connect the power cord to another power source if one is available, and
turn on the power.
e) If the IN LED is green, the problem is the first power source.
Cisco Catalyst 6807-XL Switch Hardware Installation Guide
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The chassis fan tray assembly should operate whenever system power is on. You should see the FAN
LED turn green and hear the fan tray assembly operating. A red FAN LED indicates that one or more
fans in the fan tray assembly is not operating. You should immediately contact a Customer Service
representative if the fan tray assembly is not functioning properly. There are no installation adjustments
that you can make if the fan tray assembly does not function properly at initial startup.
section.
faulty, contact a customer service representative.
that you can make. Troubleshooting the Fan Tray, on page 105
Troubleshooting the Power Supply Module, on page 104
section.
Troubleshooting
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