thermal trip


The service processor has detected a thermal trip (overheating due to an overload).



Alert Category

Blades (Critical) - mmTrapBladeC

Log Source


Automatically notify service




Example Message

Processor 3 (CPU 3 Status) thermal trip

Chassis LED

Error, Temperature

Alarm Panel LED (BC T and BC HT)


User response

Refer to the Problem Determination and Service Guide for the specified blade server to determine the device-specific actions to resolve this event. The Problem Determination and Service Guide is available on the Web.

If you do not have access to the Problem Determination and Service Guide, perform these steps:
  1. Check the room ambient temperature to ensure that it is within the operating specifications for the chassis.
  2. If an air filter is installed, make sure that it is cleaned or replaced.
  3. Make sure that all fan/blower modules are running. Replace fan modules if necessary.
  4. Make sure that a device or filler is installed in each bay in the front and rear of the chassis, and make sure that there is nothing covering the bays. Any missing components can cause a major reduction in airflow for the blade server.
  5. Update the firmware for the advanced management module. You can find firmware on the IBM BladeCenter software and device drivers Web page.
  6. Update the firmware for the blade server.
  7. For all blade servers other than the JSxx blade servers, make sure the heat sink and CPU are secured on the system board.
    Note: Be careful when handling the heat sink and CPU, they may be extremely hot.
  8. Check the IBM Support Web page for any service bulletins that might be related to this problem.