S-Series reports "Unexpected part Number..." error

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Article ID: 13793 

Products
S-Series, firmware 7.11.01.0026 through 7.21.01.0015 

Symptoms
Error message "Unexpected part Number..." is reported as a module boots up. 

The two variations of this message are:
    Unexpected part number of the Base Module in Slot <slot#>. Please
contact Product Support for assistance.
          -and-
    Unexpected part number of the Option Module (NEMx00) in Slot
<slot#>. Please contact Product Support for assistance.
The error message may be seen in a serial console session (12453), syslog ('show support', 'show logging buffer'), and/or the Message Log ('show support'). 

Here is an example from the Message Log:
Message   3/42   Syslog Message            07.21.01.0015   03/04/2011 15:17:27
<3> System[1]Unexpected part number of the Base Module in Slot 1. Please
contact Product Support for assistance.
Cause
This condition may be reported for particular S-Series part numbers, identifiable by means of either a 'show support' or 'show system hardware' command. 

For example:
S-Series(su)->show system hardware

. . .

SLOT HARDWARE INFORMATION
-------------------------

SLOT 1
Model: ST4106-0248
Part Number: 9404435
Serial Number: 104956136341
Vendor ID: 1
Base MAC Address: 00-1F-45-9D-55-82
MAC Address Count: 50
Style: Unknown
Hardware Version: 2
Firmware Version: 07.21.01.0015

. . .

S-Series(su)->
The last four digits of the part number (here, "4435") may also be viewed as the first four digits of the 16-digit serial number printed on the top locking tab of a base module. 

The error message is issued because the part number is not yet specifically known to the firmware. 

Solution/Workaround
Upgrade to firmware 7.21.02.0002 or higher.
Release notes state, in the 'Firmware Changes and Enhancements' section:
Platform
An S system, while booting, may unnecessarily display and log a message similar to "System*1+Unexpected part number of the Base Module in Slot 1. Please contact Product Support for assistance."

Pre-upgrade workaround: 
The error message is effectively harmless, because the module will function correctly. The only liability to this condition is that the firmware cannot check for Option Module / Base Module compatibility (13355).
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Posted 5 years ago

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