Writing crashinfo to flash:crashinfo / *** System received a Bus Error exception ***

Hello Experts,

A cisco 2610XM crashed almost completely. We got a 2620XM with the same specs and this one also crashes  with the error message:

CPU Register Context:                    
MSR = 0x00009032  CR  = 0x53000035  CTR = 0x802ABDBC  XER   = 0xE000007F                            
!c  
!-  
ephone-dn  4  dual-line        
R0  = 0xC0000000  R1  = 0x840E3E88  R2  = 0x83AD0000  R3    = 0x00000003ms, Inc.####################################e prot                      
R4  = 0x00000004  R5  = 0x00000000  R6  = 0x83AD0000  R7    = 0x68010000            

R24 = 0x00000000  R25 = 0x00000000  R26 = 0x840E3EB8  R27   = 0x00000000
R28 = 0x68000000  R29 = 0x68004000  R30 = 0x00000004  R31   = 0x00000000

Writing crashinfo to flash:crashinfo_20020301-000012

=== Flushing messages (00:00:12 UTC Fri Mar 1 2002) ===

Queued messages:
*Mar  1 00:00:12.131: %SYS-3-LOGGER_FLUSHING: System pausing to ensure console d
ebugging output.

*Mar  1 00:00:06.063: %LINEPROTO-5-UPDOWN: Line protocol on Interface VoIP-Null0
, changed state to up
*** System received a Bus Error exception ***
signal= 0xa, code= 0x200, context= 0x83dc6430
PC = 0x802abdfc, Vector = 0x200, SP = 0x840e3e88


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I manage to load the IOS from the original router that crashed and the running config ro the new router (which was working fine for 5 minutes)  so the new router loaded the IOS fine, the startup -config as well but after 5 minutes died also.
I don't understand this new router was booting with the IOS by default ok. I checked  in previous posts and the error message seems to be a memory fault but which of the memories?  And why this might happen when it was working before (I mean the new router)

Thanks
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anbantAsked:
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anbantConnect With a Mentor Author Commented:
Found the faulty part.
This router has a NM_HDV module and this module has 5 slots, one of the slots was the faulty one.
After moving the PDM to another slot now the IOS loads OK.
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