Information Technology Reference
In-Depth Information
Table 3-2 outlines the areas where Cisco 7000 series startup problems may occur and describes solutions
to those problems.
Table3-2
Hardware: Cisco 7000 Series Startup Problems and Solutions
Possible Problem Area
Solution
Power subsystem
Check to see whether the DC OK LED is on.
1.
If the LED is not on but the fans are operating and
LEDs on the processor modules are on, the Power
Supply LED might be faulty.
2.
If the LED is not on and there is no other activity, make
sure that the power switch is fully in the on position.
3.
Make sure that the power source, power cable, and
power supply are functioning correctly. Swap parts to
see whether one of the components is faulty.
4.
Ensure that the fan tray is seated properly. Make sure
that the fan control board edge connector is inserted
fully in the backplane socket.
5.
Cooling subsystem
1.
Check to see whether the fans are operating.
2.
If the fans are not operating and the DC OK LED is off,
there might be a problem with the +24V DC power.
3.
Ensure that the fan tray is seated properly. Make sure
that the fan control board edge connector is inserted
fully in the backplane socket.
4.
If the system and the fans start up but shut down after
about 2 minutes, one or more fans has failed or is
operating out of tolerance. You will see an error
message similar to the following:
%ENVM-2-FAN: Fan array has failed, shutdown in
2 minutes
If one or more fans or the fan control board fails, you must
replace the fan tray.
5.
If you see the following error message, the system has
detected an overtemperature condition or
out-of-tolerance power inside the chassis:
Queued messages:
%ENVM-1-SHUTDOWN: Environmental Monitor
initiated shutdown
If an environmental shutdown results from an
out-of-tolerance power condition, the DC OK LED will go
off before the system shuts down.
