Knowledge Article: ID B000A2001: Chassis Cooling Device 1 communication failed.

Description

A communication error occurred between the management module and the fan module in fan bay 1.

Causes

The advanced management module failed to communicate with the fan controller.

Implications

The fan will operate at the manufacturer-recommended speed which is approximately 97% of full speed.

Resolutions

Perform these steps:

1. Examine the event log. Communication problems on the I2C management bus can cause this error as well as a failed fan or blower module. Actions for bus issues include restarting the advanced management module, failing over to a standby advanced management module, and reseating the components on the bus, including the advanced management module and blower or fan modules.
   
2. Replace the fan or blower 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.