Sun Fire 3800/4800/4810/6800 and Sun Fire 12K/15K Servers With Certain UltraSPARC III Based System Boards Shipped Between 14-Apr-2003 and 03-Oct-2003 May Experience System Interrupts Due to Processor Attach Mechanism Issues

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Impact

Sun Fire 3800/4800/4810/6800, and Sun Fire 12K/15K systems with certain UltraSPARC 900MHz, 1050MHz, and 1200MHz-based system boards shipped between 14-Apr-2003 and 03-Oct-2003 may experience system interrupts due to processor attach mechanism issues.

Note: The issue described in this Sun Alert has been resolved. Failure rates have returned to normal levels, and there is no need to replace boards in the date range above. Please see the "Resolution" section below for additional information.

Contributing Factors

This issue can occur on the following platforms:

SPARC Platform

• Sun Fire 3800/4800/4810/6800 with UltraSPARC 900MHz, 1050MHz and 1200MHz based system boards
• Sun Fire 12K/15K with UltraSPARC 900MHz, 1050MHz and 1200MHz based system boards

Sun has identified that certain system boards shipped between 14-Apr-2003 and 03-Oct-2003 may experience this issue.

Symptoms

Should the described issue occur, error types associated with processor attach mechanism issues include the following:

    L2SRAM errors, Error 71 errors, vcore over-voltage errors,
    Safari Address Parity Errors (SAPEs) and certain Solaris panics.

Workaround

Please see Resolution section below.

Resolution

The processor attach mechanism issue has been addressed and is now resolved.

Sun has re-engineered the system boards in question and has worked towards removing the at-risk populations from circulation. Improvements in the design and manufacturing process were completed by November, 2003 which greatly reduced the failure rates due to processor attach on all new systems shipped. In addition, many critical systems which were at risk of processor attach issues were upgraded at customer locations. As a result of these activities, failure rates experienced on the identified at risk population have returned to normal levels.

Modification History


Date: 28-JAN-2004

• Updated Impact and Contributing Factors sections

Date: 24-MAY-2004

• State: Resolved
• Updated Resolution section

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