Sun Fire[TM] 12K/15K/E20K/E25K: Troubleshooting a Dimm Failure during POST on an Othello+ System Controller (Doc ID 1002244.1)

Last updated on JULY 31, 2012

Applies to:

Sun Netra CP2140 Blade Server - Version Not Applicable and later
Sun Fire 12K Server - Version Not Applicable and later
Sun Fire 15K Server - Version Not Applicable and later
Sun Fire E20K Server - Version Not Applicable and later
Sun Fire E25K Server - Version Not Applicable and later
All Platforms

Symptoms

 

When booting the Othello+ (CP2140) System Controller (SC), it fails POST with the following error:

Firmware CORE  Sun Microsystems, Inc.
(#) core 1.0.13 2004/01/30 21:11
Hardware Power ON
Verifying NVRAM...Done
Probing KBD Done
Keyboard=TTYA
Failed to access Mother Board Fru Data !! 
Using Memory default settings in absence of FRU data !!!
MCR0 = 16a09d06
MCR1 = 80008000
MCR2 = cfffaaaa
MCR3 = 6047ff
Ecache Size = 512 KB
NVRAM Test
Icache Test
Dcache Test
MMU Test
FPU Test
Ecache Tag Addr Test
Ecache RAM Addr Test
Clearing E$ Tags Done
Clearing I/D TLBs Done
Probing memory
Done
MEMBASE=0xc0000000
MEMSIZE=0x10000000
Data Line Test
Core Memory Test

STATUS  = FAILED
MESSAGE = Mem tst failed
SUSPECT = Upper Mem Module [DIMM3]  <<<<<<<<<<<<<<<<
address : 0xcfea00c0
exp data: 0xa5a5a5a5a5a5a5a5
obs data: 0xa5a5a5a5a5a5a5a1 

This document will explain how to decode the physical location of "DIMM3"

Cause

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