Document fins/I0826-1

FIN #: I0826-1

SYNOPSIS: Incorrect LED states on the Expander, CPU, and other Sun Fire 15K/12K
          boards after a cold start (power on) do not indicate an actual
          failure

DATE: May/15/02

KEYWORDS: Incorrect LED states on the Expander, CPU, and other Sun Fire 15K/12K
          boards after a cold start (power on) do not indicate an actual
          failure


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- Sun Proprietary/Confidential: Internal Use Only -
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                            FIELD INFORMATION NOTICE
                  (For Authorized Distribution by SunService)



SYNOPSIS: Incorrect LED states on the Expander, CPU, and other Sun Fire 
          15K/12K boards after a cold start (power on) do not indicate 
          an actual failure.


Sun Alert:          No

TOP FIN/FCO REPORT: No 
 
PRODUCT_REFERENCE:  Sun Fire 15K/12K 
 
PRODUCT CATEGORY:   Server / Service


PRODUCTS AFFECTED:  

Systems affected:
-----------------  
Mkt_ID   Platform   Model   Description       Serial Number
------   --------   -----   -----------       -------------
  -        F15K      ALL    Sun Fire 15K            -
  -        F12K      ALL    Sun Fire 12K            -


X-Options affected:
-------------------
Mkt_ID   Platform   Model   Description       Serial Number
------   --------   -----   -----------       -------------
  -         -         -          -                  -


PART NUMBERS AFFECTED: 

Part Number      Description   		Model
-----------      -----------   		-----
     -                -                   -  


REFERENCES:

BugId: 4646745 - Starcat LEDs intermittantly fail on Cold start of the
                 Sun Fire 15000. 
       4648458 - CPU boards in 15K power up with incorrect LED settings.

     
PROBLEM DESCRIPTION:  

The LEDs on the Expander, CPU, and hsPCI boards of Sun Fire 15K and 12K
systems may fail to light upon cold start.  The failure of the LEDs to
light does not indicate any real problem and there is no impact on
system operation.  However, service personnel may mistakenly reseat or
replace good boards.

A "Cold Start" is a power on defined as:

   . All slot Breakers in the ON position
   . All the 48V Bulk breakers are in the OFF postition.
   . The 48V Bulk breakers are turned ON, one at a time.

After all 12 breakers are turned ON, close inspection shows that some
of the LEDs may not be lit.  This only occurs on initial power up of
the system when it is not under System Management Software (SMS)
control.  The LEDs that fail to light are not consistantly the same.
It can occur on boards in both the front and back of the system and in
any slot position.  Once SMS is up and running, the LED states are
corrected.

This is not a hardware or software problem, but rather a procedural
issue.  SMS needs to be started and polling of the components needs to
occur before the LEDs on the boards are correctly set.  This is the
expected behavior.

This issue is due to the 48V power control logic not being properly
cleared from a static cold start, i.e., boards are inserted w/ AC off
and then AC is enabled to the system.


IMPLEMENTATION: 

         ---
        |   |   MANDATORY (Fully Proactive)
         ---    
         
  
         ---
        |   |   CONTROLLED PROACTIVE (per Sun Geo Plan) 
         --- 
         
                                
         ---
        | X |   REACTIVE (As Required)
         ---


CORRECTIVE ACTION:

The following recommendation is provided as a guideline for authorized
Enterprise Services Field Representatives who may encounter the above
mentioned problem.

For Sun Fire 15K and 12K systems, do not rely on board LED status as an
indication of failure when the system is powered up from a cold start.
Do not reseat or replace any boards.  Wait until SMS software has
initialized to see the correct LED status.


COMMENTS:  

None

============================================================================

Implementation Footnote:

i)   In case of MANDATORY FINs, Enterprise Services will attempt to
     contact all affected customers to recommend implementation of
     the FIN.

ii)  For CONTROLLED PROACTIVE FINs, Enterprise Services mission critical

     support teams will recommend implementation of the FIN  (to their
     respective accounts), at the convenience of the customer.

iii) For REACTIVE FINs, Enterprise Services will implement the FIN as
     the need arises.
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