Document Audience:INTERNAL
Document ID:I1171-1
Title:Sun Fire V480 and V880 systems configured with certain DIMMs may not pass POST with multiple DIMM errors.
Copyright Notice:Copyright © 2005 Sun Microsystems, Inc. All Rights Reserved
Update Date:2005-02-28

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                        FIELD INFORMATION NOTICE
               (For Authorized Distribution by Sun Service)
FIN #: I1171-1
Synopsis: Sun Fire V480 and V880 systems configured with certain DIMMs may not pass POST with multiple DIMM errors.
Create Date: Feb/28/05
SunAlert: No
Top FIN/FCO Report: No
Products Reference: Sun Fire V480/V880 Server Products
Product Category: Server / Diag-Doc-Service
Product Affected: 
Systems Affected:
-----------------
Mkt_ID      Platform    Model     Description               Serial Number
------      --------    -----     -----------               -------------
  -           A37        ALL      Sun Fire V480 Server            -
  -           A30        ALL      Sun Fire V880 Server            -


X-Options Affected:
-------------------
Mkt_ID      Platform    Model    Description                Serial Number
------      --------    -----    -----------                -------------
X7053A         -          -      OPT MEMORY 1 GB (4x256MB)        -
Parts Affected: 
----------------------
Part Number             Description            Model              Type    Vendor
-----------             -----------            -----              ----    ------
501-5401-03 (or lower)  ASSY SDRAM DIMM 256MB  MT18LSDT16144G-75  DIMM    Micron
References: 
BugId:   5084913 -  MICRON 256MB DIMM Failures.

PatchId: 112186-19: Hardware/PROM: Sun Fire V880 / V890 Flash PROM
                    Update.
         113034-17: Hardware/PROM: Sun Fire V480 / V490 Flash PROM
                    Update.
Issue Description: 
Customers who receive a Sun Fire V480 or V880 system configured with
Micron DIMMs may experience POST failures.  These failures can show up
as DOAs, since they occur at power-up.

The POST failure message usually contains 'probe and Setup memory'.

During the POST process, the  CPU is typically the initial indictment.
This occurs as the failure message will indicate a certain DIMM
location, prompting the Technician to replace the reported DIMM.  After
doing so, the CPU will still fail.  DIMMs that are removed from this
failing CPU will often pass when tested in another system.

Conversely, when a new set of DIMMs is installed in the original CPU,
the CPU will then pass as well.  This typically occurs when a vendor
other than Micron is installed in the CPU.

Failures are due to the DRAM DQs firing incorrectly, causing data
contention.This causes a boot fail because the data bus is shared with
other DRAM. The DQs are firing due to the Micron DRAM seeing an
"illegal" LMR (Load Mode Register used for initialization).

Additionally aggravating the issue, a clock pulse is caused by floating
inputs to the PLL on the module. This unique condition puts the Micron
DRAM into a "reserved" mode.
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
Sun Services Field Representatives who may encounter the above
mentioned issue.

Please install following patches:

   For Sun Fire V880 - 112186-19
   For Sun Fire V480 - 113034-17
Comments: 
None.

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

NOTE: FIN Tracking Instructions for Radiance/SPWeb:
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issue, please complete the following steps in Radiance/SPWeb prior to
closing the case:

    o Select "Field Information Notice" in the REFERENCE TYPE field.

    o Enter FIN ID number in the REFERENCE ID field.
      For example; I1111-1.

If possible, include additional details in the REFERENCE SUMMARY field
(ie. implementation complete, customer declined, etc.)
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Implementation Notes:
--------------------

In case of "Mandatory" FINs, Sun Services will attempt to contact
all known customers to recommend proactive implementation.

For "Controlled Proactive" FINs, Sun Services mission critical
support teams will initiate proactive implementation efforts for
their respective accounts as required.

For "Reactive" FINs, Sun Services and partners will implement
the necessary corrective actions as the need arises.


Billing Information:
-------------------

Warranty: On-Site Labor Rates are based on specified Warranty deliverables
          for the affected product.

Contract: On-Site Labor Rates are based on the type of service contract.

Non Contract: On-Site implementation by Sun is available based on On-Site
              Labor Rates defined in the Price List.

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