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

 

FCO #: A0167-1

Status: inactive

Date: Sep/12/00

Keywords: 

VRM Interposer board (375-0094-01) can cause intermittent system resets in the Enterprise 220R

Top FIN/FCO Report: Yes

Products Reference: E220R / VRM Interposer Card

Product Category: Server / Power

Product Affected: 

Mkt_ID   Platform   Model   Description   Serial Number
------   --------   -----   -----------   -------------

Systems Affected
------- --------
A34-AA   E220R        -     Enterprise 220R     -

X-options Affected    
--------- --------

Parts Affected: 

Part Number   Description   Model
-----------   -----------   -----
375-0094-01  VRM Interposer (without deviation WO_17041)   -

(SCSI Devices)
Type    Vendor    Model     SerialNumber(Min)    SerialNumber(Max)    Firmware
----    ------    -------   ------------------   ------------------   --------
N/A

References: 

ECO: WO_17257
   LEAP: 1097
   WW StopShip: WS001#03634
   Deviation: WO_17041

Issue Description: 

The VRM Interposer board (Sun p/n 375-0094-01) can cause intermittent system
resets in the Enterprise 220R (Razor) under high-load conditions.  A high-load
condition is defined as anytime the CPU modules are drawing higher than normal
power. This is primarily dependent on the system configuration (two processors
versus one) as well as what software is running at the time.  No system errors
are reported.

Root Cause has determined the circuit that generates core power for the CPU
modules has an insufficient voltage margin, and under high-load conditions
may prematurely signal an overvoltage condition which causes the system to
reset.  The fix modifies the VRM Interposer board (375-0094-01) to better
use the margin that the VRM overvoltage detector provides thereby avoiding
a premature overvoltage condition.

Corrective action was implemented in Manufacturing on February 19th, 2000
via Deviation ECO# WO_17041.

Corrective action was made available to Enterprise Services on May 8th, 2000
by the availability of the 375-0094-02 via ECO# WO_17257.

Implementation: 

---
  	|   |  	MANDATORY (Fully Pro-Active)
	 ---    

         ---
  	| X | 	CONTROLLED PRO-ACTIVE (per Sun Geo Plan) 
	 ---   
			
         ---
  	|   | 	UPON FAILURE
	 ---

Replacement Time Estimate: 

0.5 hours

Special Considerations: 

Enterprise 220R systems started shipping with fixed VRM Interposer Boards
(375-0094-01 w/Deviation label DEV# WO_17041) as of February 19, 2000.

Enterprise 220R systems started shipping with fixed VRM Interposer Boards
(375-0094-02) as of May 8th, 2000.

Corrective Action: 

Upon failure or request replace 375-0094-01 with 375-0094-02 or 375-0094-01
with Deviation Label "DEV# WO_17041".

Billing Type: 

Warranty: Sun will provide parts at no charge under Warranty 
           Service. On-Site Labor Rates are based on how the
           system was initially installed.

 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.

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Implementation Footnote: 

________________________

i)   In case of Mandatory FCOs, Enterprise Services will attempt to contact
      all known customers to recommend the part upgrade.

ii)  For controlled proactive swap FCOs, Enterprise Services mission critical
     support teams will initiate proactive swap efforts for their respective 
     accounts, as required.

iii) For Replace upon Failure FCOs, Enterprise Services partners will implement 
     the necessary corrective actions as and when they are required.

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