Error Messages
10
Troubleshooting Cisco 3800 Series Routers
OL-5972-01
This is an example of the output of the show environment command for a Cisco 3845 router that has
one AC power supply with IP phone power output installed:
Router# show environment
SYS PS1 is present
Fan status: Normal
Input Voltage status: Normal
DC Output Voltage status: Normal
Type: AC
Thermal status: Normal
SYS PS2 is absent
AUX (-48V) PS1 is present
AUX (-48V) PS2 is absent
Fan 1 Normal
Fan 2 Normal
Fan 3 Normal
Fan Speed is Normal
Alert settings:
Intake temperature warning: Enabled, Threshold: 50
Core temperature warning: Enabled, Threshold: 70 (CPU: 90)
Board Temperature: Normal
Internal-ambient temperature = 31, Normal
CPU temperature = 50, Normal
Intake temperature = 25, Normal
Backplane temperature = 24, Normal
Voltage 1(3300) is Normal, Current voltage = 3284 mV
Voltage 2(5150) is Normal, Current voltage = 5210 mV
Voltage 3(2500) is Normal, Current voltage = 2549 mV
Voltage 4(1200) is Normal, Current voltage = 1215 mV
Error Messages
This section describes error messages that may appear on an external console screen. (For more
information about consoles, see the “Connecting a Console or Modem” section on page 9 of
“Connecting Cables to Cisco 3800 Series Routers.”)
Cisco IOS software checks the system once every 30 seconds. If an error still exists, the error message
is displayed again; if the error has cleared, a recovery message is displayed.
Error Message System detected OVERTEMPERATURE condition. Please resolve cooling
problem immediately!
Explanation The router is operating at a temperature higher than the user-set threshold, possibly
caused by fan failure, air-conditioning failure in the room, or air blockage to cooling vents.
Recommended Action Make sure that the ambient room temperature does not exceed 40 degrees C
and that airflow to the router is not blocked. See the “Site Environment” section on page 4 and the
“Equipment Racks” section on page 5 of “Preinstallation Requirements and Planning for
Cisco 3800 Series Routers.”
If this condition persists, the power-supply thermal monitor automatically shuts down the router.
Call your Cisco technical support representative for help, if necessary.
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