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Hi all

i have 3660 with out any modules
the box hangs afer running some hour or so

when i off and on i get the following error

Router>
System Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.

Bad RAM at location 0xA0000000: wrote 0xA0000000, read 0x5C5C5C5C


when i switched on again next day..

the box boot and run for a hour

what could be the problem

can one one help me .. how to sort this problem

hari

hari wrote:

> when i switched on again next day..
>
> the box boot and run for a hour
>
> what could be the problem

I think the box is telling you what the problem is:

> Bad RAM at location 0xA0000000: wrote 0xA0000000, read 0x5C5C5C5C

Wonky RAM. I suggest pulling the memory and reseating it. If that
doesn't help, replace it.

Regards,

Marco.

(hari) writes:
>i have 3660 with out any modules
>the box hangs afer running some hour or so

>when i off and on i get the following error

>Router>
>System Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1)
>Copyright (c) 1999 by cisco Systems, Inc.

>Bad RAM at location 0xA0000000: wrote 0xA0000000, read 0x5C5C5C5C


Either bad RAM or a bad motherboard with a bad memory controller.
Sounds like an RMA situation either way. Reseat the RAM (although that
type of failure doesn't sound like it would help), or RMA both through TAC.

--
Doug McIntyre
Network Engineer/Jack of All Trades
Vector Internet Services, Inc.

Hi

yes as per your suggestion
i have brought the new PC 100 RAM

now it behaves the same

do you think its chasis or any other problem

or any IOS in compatability problem

hari

"M.C. van den Bovenkamp" <> wrote in message news:<409c99c5$0$143$4al l.nl>...
> hari wrote:
>
> > when i switched on again next day..
> >
> > the box boot and run for a hour
> >
> > what could be the problem
>
> I think the box is telling you what the problem is:
>
> > Bad RAM at location 0xA0000000: wrote 0xA0000000, read 0x5C5C5C5C
>
> Wonky RAM. I suggest pulling the memory and reseating it. If that
> doesn't help, replace it.
>
> Regards,
>
> Marco.

(hari) writes:
>yes as per your suggestion
>i have brought the new PC 100 RAM

>now it behaves the same
>do you think its chasis or any other problem
>or any IOS in compatability problem


I haven't seen IOS fail in such a way like this.

I've had a chassis fail in this exact way a few times. Doing a total
hardware swap with the same exact IOS version, and same exact config
made it not fail that way ever again.

So, I'd imagine you have a bad motherboard (ie. chassis) on this
router that needs a fixin.

--
Doug McIntyre
Network Engineer/Jack of All Trades
Vector Internet Services, Inc.

Doug McIntyre <> wrote in message news:<409d6e4e$0$8520$ >...
> (hari) writes:
> >i have 3660 with out any modules
> >the box hangs afer running some hour or so
>
> >when i off and on i get the following error
>
> >Router>
> >System Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1)
> >Copyright (c) 1999 by cisco Systems, Inc.
>
> >Bad RAM at location 0xA0000000: wrote 0xA0000000, read 0x5C5C5C5C
>
>
> Either bad RAM or a bad motherboard with a bad memory controller.
> Sounds like an RMA situation either way. Reseat the RAM (although that
> type of failure doesn't sound like it would help), or RMA both through TAC.


Clearly suspecting the RAM is a good place to start however
it could be a random bug or hardware failure calling the "Bad
RAM report" code with the mentioned parameters. It is in fact
VERY suspicious, to me, that the location and written value are
the same.

Does your platform even have RAM at that address?

Perhaps it's time to ARM the RMA.