Problem with 2821 SDRAM KCS-D2800/512

Unanswered Question
Jan 9th, 2008
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Hi friends,

i put this memory on 2821 router but console give me this error:


SDRAM ECC Error,

err addr - 0x03280000, err data_l 0xFF000000,err data_h 0x00000000,

rcv ecc - 0x00000000, calc ecc 0x24000000, err cnt 0x8A260000

r0 = FFFFFFFF r1 = FFFFFFFF r2 = 0 r3 = 449F0000 r4 = 0

r5 = 38 r6 = 0 r7 = 4025C0D8 r8 = 0 r9 = 20

r10 = FFFFFFFF r11 = FDFDFFFF r12 = 0 r13 = 2000000 r14 = 0

r15 = F4240 r16 = 0 r17 = C100 r18 = 0 r19 = 3400C101

r20 = 0 r21 = 4008ED70 r22 = FFFFFFFF r23 = FFFF00FF r24 = 0

r25 = 4008ED50 r26 = 0 r27 = 45625FF0 r28 = 0 r29 = 45625FEC

r30 = 0 r31 = 45625FE8 r32 = FFFFFFFF r33 = FFFFFFFF r34 = FFFFFFFF

r35 = FFFFFFFF r36 = FFFFFFFF r37 = FFFFFFFF r38 = FFFFFFFF r39 = FFFFFFFF

r40 = FFFFFFFF r41 = FFFFFFFF r42 = FFFFFFFF r43 = FFFFFFFF r44 = FFFFFFFF

r45 = FFFFFFFF r46 = FFFFFFFF r47 = FFFFFFFF r48 = 0 r49 = D0D0D0D

r50 = 0 r51 = 0 r52 = 0 r53 = 3040A801 r54 = FFFFFFFF

r55 = A000F000 r56 = FFFFFFFF r57 = FFFFFFFF r58 = FFFFFFFF r59 = 8000EDB0

r60 = FFFFFFFF r61 = FFFFFFFF r62 = 0 r63 = 4009DE68

sreg = 3400C103 mdlo_hi = 0 mdlo = 3E8

mdhi_hi = 0 mdhi = 0 badvaddr_hi = FFFFFFFF

badvaddr = FFFFFFFF cause = FFFFFFFF epc_hi = 0

epc = 4008E830 err_epc_hi = FFFFFFFF err_epc = FFFFFFFF


%ERR-1-FATAL: Fatal error interrupt, reloading

err_stat=0x0



I think that this RAM is failed or not compatible. What do you think about it? Can you give me an answer? thanks

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ankbhasi Wed, 01/09/2008 - 06:17
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  • Cisco Employee,

Hi Friend,


The "SDRAM ECC Error" means that there was checksum error in the memory, a parity error.

Usually parity errors are transient issue but when repeated this indicates a HW failure.


It looks its a bad RAM tat you had.


Regards,


Ankur


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