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Knowledge Article: ID B0821C001: Power module %d has exceeded the warning temperature.

Description

The temperature for the specified power module exceeds the warning threshold. If fan modules or blower modules are not operating at maximum speed, the BladeCenter chassis increases the fan or blower speed to maximum speed in response to this warning.

Causes

The Advanced Management Module detects that the specified power module exceeds the warning temperature.

Implications

In addition to this warning message, the fans begin to operate faster (increased RPM). The Advanced Management Module reads the temperature periodically. If the next reading detects that the power module temperature continues to rise, the Advanced Management Module issues an over temperature fault.

Resolutions

Perform these steps:

  1. Verify that the fan modules are working properly.
  2. Verify that the ambient temperature is within the operating requirements for the chassis.
  3. Verify that a device or filler is installed in each bay in the front and rear of the chassis, and verify that there is nothing covering the bays. Any missing components can cause a major reduction in airflow for the power module.

Additional information

To find additional troubleshooting help, visit the "IBM Support & downloads" Web site, select "BladeCenter" for "Browse products for support" panel. At "Support & downloads quick start" page, select your product for "Choose your products", and "Troubleshooting" for "Choose your page", then select "View your page" for "See your results". To narrow the results, search with keywords that are related to this article, such as "fail", "Chassis", etc. in the "Search support" field at the right panel.

To download the latest firmware or drivers, visit the "Fix Central" Web site, select "BladeCenter" for "Product Group" (from the pull-down lists), select your product for "Product" (from the pull-down lists), select your product machine type for "Product" (from the pull-down lists), and select your operating system for "Operating system" (from the pull-down lists). You can refine the search by selecting the category of the download of your interest from the "Refine results" list.