Description
The advanced management module cannot read the temperature for the specified media tray. The advanced management module sets the cooling capacity to maximum, which ramps up the fan modules.
Causes
If the management bus monitor fails to get the media tray temperature, the advanced management module sets the cooling capacity to the maximum.
Implications
A media tray disruption can disrupt airflow to the ambient temperature sensor. This disruption can lead to a rise in the enclosure temperature, which sets the fans to maximum.
Resolutions
Check the event log for communication failures for multiple components, such as I/O modules, fan modules, and power modules. If there are communication failures for multiple components, restart the advanced management module.
If there are no other communication failures, perform these steps:
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.
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