| Document Audience: | INTERNAL |
| Document ID: | A0248-1 |
| Title: | A limited set of Sun Fire System Boards may be vulnerable to Uncorrectable Errors in L2 SRAM. |
| Copyright Notice: | Copyright © 2007 Sun Microsystems, Inc. All Rights Reserved |
| Update Date: | Fri Nov 05 00:00:00 MST 2004 |
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FIELD CHANGE ORDER
(For Authorized Distribution by Sun Services)
FCO #: A0248-1
Status: inactive
Synopsis: A limited set of Sun Fire System Boards may be vulnerable to Uncorrectable Errors in L2 SRAM.Date: Nov/5/2004
SunAlert: 101566
DPCO: 471, 451.D
ECO: WO_30083
URL: http://onestop.eng/qco/tools/uniboard_sram_lookup_tool.shtml
http://sdpsweb.central/FIN_FCO/FCO/FCO_A0248-1_Dir/SPE/SRAM_Cust_Letter.sxw
http://onestop.eng/qco/uniboard/docs/sram_fco_procedure.html
http://onestop.eng/qco/sram_faq.htmlTop FIN/FCO Report: Yes
PRODUCT REFERENCE: Sun Fire 3800/4800/4810/6800, Sun Fire 12K/15K,
Sun Fire V1280, Netra 1280Product Category: Server / System Component
Product Affected:
Systems Affected:
------- --------
Mkt_ID Platform Model Description Serial Number
------ -------- ----- ----------- -------------
- A40 All Sun Fire V1280 -
- N40 All Netra 1280 -
- F3800 All Sun Fire 3800 -
- F4800 All Sun Fire 4800 -
- F4810 All Sun Fire 4810 -
- F6800 All Sun Fire 6800 -
- F12K All Sun Fire 12K -
- F15K All Sun Fire 15K -
X-Options Affected
--------- -------
Mkt_ID Platform Model Description Serial Number
------ -------- ----- ----------- -------------
- - - - -
Parts Affected:
Part Number Description Model Type
---------------------- ----------- ----- ----
540-6078-03 (or below) CPU/Mem, 900 MHz 2-way Uniboard - -
540-6079-03 (or below) CPU/Mem, 900 MHz 4-way Uniboard - -
540-6080-03 (or below) CPU/Mem, 1050 MHz 2-way Uniboard - -
540-6081-03 (or below) CPU/Mem, 1050 MHz 4-way Uniboard - -
540-6082-03 (or below) CPU/Mem, 1200 MHz 2-way Uniboard - -
540-6083-03 (or below) CPU/Mem, 1200 MHz 4-way Uniboard - -
540-6085-xx CPU/Mem, Uniboard, 900 MHZ, LW8 - -
540-5849-xx CPU/Mem, Uniboard, 1200MHz, LW8 - -
501-6701-xx MaxCPU 900 MHz - -
501-6465-xx MaxCPU 1050 MHz - -
501-6466-xx MaxCPU 1200 MHz - -
Note: The above list only reflects FRU/CRU part numbers. For a complete
list of part numbers reference the CORRECTIVE ACTION section below.References:
Issue Description:
Certain Sun Fire 3800/4800/4810/6800, Sun Fire 12K/15K, Sun Fire V1280 and
Netra 1280 System Boards manufactured with a specific SRAM may be vulnerable
to component weakness resulting in potential system interrupts due to L2 SRAM
Uncorrectable Errors (UEs).
This issue only occurs within a subset of total SRAM supply and not all SRAM
are impacted. The probability of a system being affected by this issue is
dependent on the amount of SRAM contained within the system. This, in turn, is
dependent on the number of CPUs within the system.
Should the described issue occur, Sun Fire 3800/4800/4810/6800, Sun Fire
12K/15K, Sun Fire V1280, and Netra 1280 systems may experience messages
similar to the following:
Error 0x71 (Syndrome 0x71)
L2 cache UE events (WDU,CPU,EDU,UCU)
Identifying Affected Systems
----------------------------
Suspect SRAM components may have shipped in the affected platforms
during the period from August 2001 to August 10, 2004.
It is not possible to know in advance which systems may contain
suspect SRAM components. A System Board SRAM Look-Up Tool has been
created to aid in this identification. It can be downloaded from:
http://onestop.eng/qco/tools/uniboard_sram_lookup_tool.shtml
Determining if a system contains boards at risk is a two step process.
This consists of FRUID collection followed by FRUID analysis.
The latest details for this process can be viewed at the "onestop"
URL above.
This issue has been root caused as component weakness in a specific group of
SRAM components supplied by one vendor. These SRAM may fail at a higher rate
than would normally be expected.
The SRAM component was susceptible to a soft "latch up" condition due to the
design of the SRAM cell array and the particular manufacturing process. Soft
latch up may contribute to L2 cache SRAM UEs. To correct the issue, the
supplier made changes to their manufacturing process.
The issue has been addressed in Sun Manufacturing by cutting in known good SRAM
components as of August 10, 2004. Systems or System Board replacements shipped
after this date are not impacted. DPCOs 471 and 451.D address this issue at
the repair depots.
See the System Board SRAM FAQ for more in-depth information.
http://onestop.eng/qco/sram_faq.htmlImplementation:
---
| X | MANDATORY (Fully Pro-Active)
---
---
| | CONTROLLED PRO-ACTIVE (per Sun Geo Plan)
---
---
| | UPON FAILURE
---
Replacement Time Estimate:
0.5 hours
Special Considerations:
This FCO will have a time zone phased release based on material
readiness as follows:
Readiness Date
--------------
US/Canada 11/18/2004
Ltn America 11/25/2004
EMEA 11/23/2004
APAC 11/30/2004
Japan 11/30/2004
The above dates represent when each timezone has determined that
it will be materially ready to support this FCO.
The following Time Zone Representatives will collect the results (.csv files)
for impacted customer systems generated from the proactive server and the
search tool. They will also serve as the focal points for FRU allocation
and customer prioritization.
APAC: May-Inn Wong ([email protected])
Canada: Rick Mohammed ([email protected])
EMEA: Renate Heidegger ([email protected])
Japan: Yuji Hashimoto ([email protected])
Latin America: Marcos Omura ([email protected])
US: Lynn Wilson ([email protected])Corrective Action:
Note There will initially be a limited supply of remedial parts for this
**** FCO. The early release of the FCO will allow account teams to begin
collecting data on impacted systems and to move current CIC work
into the FCO process. Please work with your Time Zone FCO
Representative to determine material availability and to prioritize
customer remediation.
1) A detailed process for implementing this FCO is provided at
http://onestop.eng/qco/uniboard/docs/sram_fco_procedure.html
This process should be followed to ensure a coordinated approach for
identifying affected systems, prioritizing customers, and tracking
on-site hardware replacement. Send any questions about the process
to [email protected].
2) After an affected system has been identified, replace System Boards
containing suspect SRAM components. The System Board SRAM Lookup Tool
will identify which System Boards are affected and will translate an
installed board part number into one of the following FRUs.
540-6085-xx CPU/Mem, Uniboard, 900 MHZ, LW8
540-5849-xx CPU/Mem, Uniboard, 1200MHz, LW8
540-6078-xx CPU/Mem, 900 MHz 2-way Uniboard
540-6079-xx CPU/Mem, 900 MHz 4-way Uniboard
540-6080-xx CPU/Mem, 1050 MHz 2-way Uniboard
540-6081-xx CPU/Mem, 1050 MHz 4-way Uniboard
540-6082-xx CPU/Mem, 1200 MHz 2-way Uniboard
540-6083-xx CPU/Mem, 1200 MHz 4-way Uniboard
501-6701-xx MaxCPU 900 MHz
501-6465-xx MaxCPU 1050 MHz
501-6466-xx MaxCPU 1200 MHz
Acceptable replacement FRUs will either be at a specific dash revision,
or will have a DPCO 471 or 451.D label, or will have a 559 prefix to the
part number. The 559 part numbers were created especially for this FCO.
Replace This With This Or This Or This (DPCO #471 or #451.D)
------------------- ----------- ----------- -----------------------------
540-6078-03 or less 540-6078-04 559-0072-xx 540-6078-xx + DPCO label
540-6079-03 or less 540-6079-04 559-0067-xx 540-6079-xx + DPCO label
540-6080-03 or less 540-6080-04 559-0073-xx 540-6080-xx + DPCO label
540-6081-03 or less 540-6081-04 559-0068-xx 540-6081-xx + DPCO label
540-6082-03 or less 540-6082-04 559-0074-xx 540-6082-xx + DPCO label
540-6083-03 or less 540-6083-04 559-0069-xx 540-6083-xx + DPCO label
540-6085-xx - 559-0071-xx 540-6085-xx + DPCO label
540-5849-xx - 559-0070-xx 540-5849-xx + DPCO label
501-6701-xx - - 501-6701-xx + DPCO label
501-6465-xx - - 501-6465-xx + DPCO label
501-6466-xx - - 501-6466-xx + DPCO label
Note: If a Capacity On Demand (COD) enabled System Board is replaced,
the replacement FRU must be configured for COD. See FIN I0912-1
for instructions.
3) The following Customer Letter may be used as an aid in communicating this
issue to customers.
http://sdpsweb.central/FIN_FCO/FCO/FCO_A0248-1_Dir/SPE/SRAM_Cust_Letter.sxwComments:
Below is a list of FRU part numbers and the non-FRU part numbers
that are their equivalents.
Part Number Description
----------- -----------
. 540-6078 CPU/Mem, 900 MHz 2-way Uniboard
540-4984
540-5051
540-5094
540-5095
540-5821
540-5822
540-5823
540-5824
540-6078
540-6197
540-6198
540-6199
. 540-6079 CPU/Mem, 900 MHz 4-way Uniboard
540-4934
540-4990
540-4991
540-4992
540-4993
540-5052
540-5474
540-5825
540-5826
540-5827
540-5829
540-5830
540-6079
. 540-6080 CPU/Mem, 1050 MHz 2-way Uniboard
540-5272
540-5623
540-5795
540-5796
540-5797
540-5798
540-6080
540-6149
540-6150
540-6205
. 540-6081 CPU/Mem, 1050 MHz 4-way Uniboard
540-5267
540-5780
540-5799
540-5800
540-5801
540-5803
540-5819
540-5820
540-5858
540-6081
540-6152
540-6153
. 540-6082 CPU/Mem, 1200 MHz 2-way Uniboard
540-5682
540-5691
540-6082
540-6156
. 540-6083 CPU/Mem, 1200 MHz 4-way Uniboard
540-5603
540-5604
540-5605
540-5684
540-5685
540-5732
540-5740
540-5799
540-5858
540-5859
540-6010
540-6083
540-6088
540-6160
. 540-6085 CPU/Mem, Uniboard, 900 MHZ, LW8
540-4979
540-5245
540-5402
540-6085
541-0180
. 540-5849 CPU/Mem, Uniboard, 1200MHz, LW8
540-5849
540-5869
540-5870
540-5872
540-5981
. 501-6701 MaxCPU 900 MHz
501-6138
501-6430
501-6701
. 501-6465 MaxCPU 1050 MHz
501-6365
501-6465
. 501-6466 MaxCPU 1200 MHz
501-6466
________________________________________________________________________
NOTE: FCO Tracking Instructions for Radiance/SPWeb:
--------------------------------------------------
If a Radiance case involves the application of an FCO to solve a customer
issue, please complete the following steps in Radiance/SPWeb prior to
closing the case:
o Select "Field Change Order" in the REFERENCE TYPE field.
o Enter FCO ID number in the REFERENCE ID field.
For example; A0222-1.
If possible, include additional details in the REFERENCE SUMMARY field
(ie. Upgrade complete, customer declined, etc.)
________________________________________________________________________
Implementation Notes
--------------------
In case of "Mandatory" FCOs, Sun Services will attempt to contact
all known customers to recommend proactive implementation.
For "Controlled Proactive" FCOs, Sun Services mission critical
support teams will initiate proactive implementation efforts for
their respective accounts, as required.
For "Upon Failure" FCOs, Sun Services and partners will implement
the necessary corrective actions as the need arises.
The CIC process must be used for proactive hardware replacement
requests when an FCO is classified as "Upon Failure".
Billing Information
-------------------
Warranty: Sun will provide parts at no charge under Warranty
Service. On-Site Labor Rates are based on specified
Warranty deliverables for the affected product.
Contract: Sun will provide parts at no charge. On-Site Labor Rates
are based on the type of service contract.
Non Contract: Sun will provide parts at no charge. Installation by
Sun is available based on the On-Site Labor Rates
defined in the Price List.
________________________________________________________________________
All FCO documents are accessible via Internal SunSolve. Type "sunsolve"
in a browser and follow the prompts to Search Collections.
For questions on this document, please email:
[email protected]
The FIN and FCO homepage is available at:
http://sdpsweb.central/FIN_FCO/index.html
For more information on how to submit a FCO, go to:
http://pronto.central/fco.html
To access the Service Partner Exchange, use:
https://spe.sun.com
________________________________________________________________________