The first POST after a power cycle may fail SUBTEST=Memory Addressing ID=61.1 causing a processor to be temporarily disabled. POST will complete, but certain hardware may be disabled possibly leading to parts being replaced unnecessarily.

This issue can occur on the following platforms:

• Sun Fire 3800, 4800, 6800, 2900, 4900, 6900, V1280, Netra 1280 (running ScApp 5.17.4 or earlier) without patch 114524-06
• Sun Fire 3800, 4800, 6800, 2900, 4900, 6900, V1280, Netra 1280 (running ScApp 5.18.2 or earlier) without patch 114525-04
• Sun Fire F12K, F15K, E20K, E25K running SMS version 1.3 or earlier
• Sun Fire F12K, F15K, E20K, E25K running SMS version 1.4.1 without patches 117371-08 and 117772-04 

Notice below that the Test ID is 61.1. Also notice the expected address of 00004040. This address is seen most often with this issue, but it does not confirm that the failure was the result of this issue.

    {/N0/SB4/P3/C0} ERROR: TEST=Memory Tests,SUBTEST=Memory Addressing ID=61.1 	<---- 
    Test ID
    {/N0/SB4/P3/C0} Component under test: /N0/SB4/P3 Memory
    {/N0/SB4/P3/C0}     Memory Walking Rows and Columns failure,
    {/N0/SB4/P3/C0}     address  0000008c.00004040	
    {/N0/SB4/P3/C0}     expected 00000000.00004040 

    {/N0/SB4/P3/C0}     observed 01020023.032040c0
    {/N0/SB4/P3/C0}     xor      01020023.03200080
    {/N0/SB4/P3/C0} ERROR: TEST=Memory Tests,SUBTEST=Memory Addressing ID=61.1
    {/N0/SB4/P3/C0} Component under test: /N0/SB4/P3 Memory
    {/N0/SB4/P3/C0}     Memory address test failed in bank 0, decode error:

The only way to be sure that the test 61.1 failure was the result of this issue is to rerun POST without a power cycle. If POST passes, the failure was the result of this issue.

To work around the described issue, the processor should be re-enabled, and POST should be run again without powering off and on the system board. The test will only fail for the first read to the DIMM after a power on. If the CPU is disabled, Service mode will be necessary to re-enable it.

This issue is addressed in the following releases:

• Sun Fire 3800, 4800, 6800, 2900, 4900, 6900, V1280, Netra 1280 with ScApp 5.17.5 as delivered in patch 114524-06 or later
• Sun Fire 3800, 4800, 6800, 2900, 4900, 6900, V1280, Netra 1280 with ScApp 5.18.3  as delivered in patch 114525-04 or later
• Sun Fire F12K, F15K, E20K, E25K with patches 117371-08 or later and 117772-04 or later

Note: Sun Fire F12K, F15K, E20K, E25K systems running SMS 1.3 and earlier should upgrade to SMS 1.4.1 with patches 117371-08 and 117772-04 or later.

29-Jul-2005:

• Update Contributing Factors and Resolution sections

30-Aug-2005:

• Update Resolution section

02-Sep-2005:

• Update Resolution section

This solution has no attachment