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The heatsink and fan in some NIM-2GE-CU-SFP modules might not properly cool high powered chips that were introduced in manufacturing. This might cause the chips to overheat, which can result in packet loss and reloads, and could cause the device to no longer function.
The issue was discovered at one customer site in the field. There are no safety concerns associated with the overheating. Cisco has created a hardware replacement program in order to replace any potentially affected units in the field.
After investigation into the failure of one unit, it was discovered that the thermal solutions (heatsink and fan) did not properly cool some chips with higher power output.
The user might see console log messages that indicate reload issues with the module. This section shows an example of the messages. The module also might no longer show up in the show inventory command.
Fix on failure via the normal Return Material Authorization (RMA) process.
How To Identify Affected Products
You can identify the module serial number by visual inspection or by use of the show inventory command. This section provides instructions for each method.
Remove the module from the chassis and inspect the module label.
Show Inventory Command
Enter the command show inventory at the command prompt. In this example, two NIM-2GE-GE-SFP modules are installed in NIM slots 1 and 2, with serial numbers FOC19248X3F and FOC19248X2U, respectively.
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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