Cisco 3825 Troubleshooting Guide - Page 10

Error Messages 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. Troubleshooting Cisco 3800 Series Routers 10 OL-5972-01