Knowledge Article: ID B0821C081: Power module %d temperature fault.

Description

A temperature fault exists in the specified power module. A power module can turn itself off within 30 to 60 seconds after a temperature fault is indicated.

Causes

The management bus monitor detects that a temperature fault exists in the specified power module.

Implications

When this event occurs, the power supply powers off immediately. The management module attempts to reset the power module.

Resolutions

Perform these steps:

Verify that the room ambient temperature is not too hot. Also check the temperature on the media tray by viewing the System Status page through the management module Web interface.
Check for any blockage on or near the ventilation holes on the chassis. Remove any blockages that you find.
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 blade server.
Verify that the LEDs on the fans indicate that all fans are functioning normally. If the fans are not functioning normally, the event log might display over temperature messages for multiple components in the chassis.
The advanced management module attempts to restart the power module if the power module has cooled sufficiently. After waiting a sufficient amount of time to allow the power module to cool, examine the DC LED on the power module.

If the DC LED is not lit, reseat the power module to force a power-on cycle. If the DC LED is still not lit, replace the power module.
If the DC LED is lit, check the IBM BladeCenter software and device drivers Web site to see if any updates are available for the management module firmware. If so, update the firmware for the management 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.