RE: C2500 DRAM problem [7:24954]

2001-11-03 Thread Johan Hjalmarsson

I had the exact same trouble with the bootstrap memory test, so I searched
the CCO and came up with the following links:

Bootstrap Program
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/cis2500
/2505/2500him/76996.htm (Watch the URL-wrap!)

Bootstrap Diagnostic Tests
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/cisigslr/igslrhir/22757.htm
 (Watch the URL-wrap!)

Seems like you have to set the config-register to 0x0 before useing the
memory test!?

/Johan



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Re: C2500 DRAM problem [7:24954]

2001-11-03 Thread Gareth Hinton

Good information - Thanks Johan.

Managed to get the tests to run and all passed fine.
Doesn't explain why I can't get the 12.2 image on. I'm going to mess around
with another TFTP server, although I've never had any problems with Pumpkin
before.
Otherwise I'm running out of ideas, unless anybody does know how to turn off
the checksum feature

I'll try an older image just to make sure everything goes back on.

A(boot)(config)#config-register 0x0
A(boot)(config)#exi
A(boot)#wr
0:04:32: %SYS-5-CONFIG_I: Configured from console by console
Building configuration...
[OK]
A(boot)#
System Bootstrap, Version 11.0(10c), SOFTWARE
Copyright (c) 1986-1996 by cisco Systems
2500 processor with 14336 Kbytes of main memory
T M
Memory/Bus diagnostic

Starting Address [0x1000]?
Ending Address [0xDFF000]?
Hex argument for variable tests [0x]?
Select Tests [all]?
Number of passes to run [2]? 4
Trigger word for hardare debugging [0]?
Message Level (0=silence, 1=summary, 2=normal)[2]?

Testing addresses between 0x1000 and 0xDFF000

Begin pass 0, test 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17   End pass
Begin pass 1, test 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17   End pass
Begin pass 2, test 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17   End pass
Begin pass 3, test 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17   End pass
No errors during 4 passes




Johan Hjalmarsson  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 I had the exact same trouble with the bootstrap memory test, so I searched
 the CCO and came up with the following links:

 Bootstrap Program
 http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/cis2500
 /2505/2500him/76996.htm (Watch the URL-wrap!)

 Bootstrap Diagnostic Tests

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/cisigslr/igsl
rhir/22757.htm (Watch the URL-wrap!)

 Seems like you have to set the config-register to 0x0 before useing the
 memory test!?

 /Johan




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RE: C2500 DRAM problem [7:24954]

2001-11-02 Thread Matthew Crane

Hi Johan

There is generally nothing special about DRAM or Flash they are certainly
usable in other systems so they are not of a proprietary design.

We have had problems with some 3rd party DRAM and Flash in the past usually
due to poor handling at the manufacturer. Try taking the DRAM out putting it
on an anti static bag or rubber mat and then rub very gently over the pins
with a pencil eraser. Do both sides of the pins then re-insert the DRAM and
try again.

Matthew

Johan Hjalmarsson wrote:
 
 I've got some problem with a couple of 16MB DRAM modules for my
 C2500 routers. I bought non Cisco memories for my lab routers,
 but I get Parity Error alot and the router just reboots. I also
 bought non Cisco flash modules, but these seems to work just
 fine.
 
 Is there some way to run a verbose check on the memory so that
 I can sort out if the problem is the router or the memory?
 
 I'd also appretiate if someone could point out what's so
 special with these DRAM memories since Cisco wants so many
 bucks for them.
 
 
 Thanks in advance,
 Johan
 




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Re: C2500 DRAM problem [7:24954]

2001-11-02 Thread EA Louie

the problems with DRAM occur because:
1.  You try to install PC SIMM memory that is NON-parity memory.  The
routers require PARITY memory.
2.  You have memory that is not fast enough (70 ns maximum)

I've never had a problem with flash memory installations, so I can't comment
on that.

Not all memory is created equally  ;-)

-e-

- Original Message -
From: Matthew Crane 
To: 
Sent: Friday, November 02, 2001 4:20 AM
Subject: RE: C2500 DRAM problem [7:24954]


 Hi Johan

 There is generally nothing special about DRAM or Flash they are certainly
 usable in other systems so they are not of a proprietary design.

 We have had problems with some 3rd party DRAM and Flash in the past
usually
 due to poor handling at the manufacturer. Try taking the DRAM out putting
it
 on an anti static bag or rubber mat and then rub very gently over the pins
 with a pencil eraser. Do both sides of the pins then re-insert the DRAM
and
 try again.

 Matthew

 Johan Hjalmarsson wrote:
 
  I've got some problem with a couple of 16MB DRAM modules for my
  C2500 routers. I bought non Cisco memories for my lab routers,
  but I get Parity Error alot and the router just reboots. I also
  bought non Cisco flash modules, but these seems to work just
  fine.
 
  Is there some way to run a verbose check on the memory so that
  I can sort out if the problem is the router or the memory?
 
  I'd also appretiate if someone could point out what's so
  special with these DRAM memories since Cisco wants so many
  bucks for them.
 
 
  Thanks in advance,
  Johan
_
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com




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Re: C2500 DRAM problem [7:24954]

2001-11-02 Thread Gareth Hinton

I've pasted in the results of a memory test on a 2500 below. Anybody know if
this is normal? Seems to give me a fair few options, then do very little
before it reboots (I've snipped it at the point it starts to reboot).

I've been messing around with a 12.2 image and constantly get invalid
checksum after tftp. I've had this before on the same router with 12.1. I
just kept trying it last time and eventually it went in OK. I dare say it
will do the same this time eventually. Once it's in there are never any
problems.

Gaz



T ?
M  Memory test
T M
Memory/Bus diagnostic

Starting Address [0x1000]?
Ending Address [0xDFF000]?
Hex argument for variable tests [0x]?
Select Tests [all]?
Number of passes to run [2]?
Trigger word for hardare debugging [0]?
Message Level (0=silence, 1=summary, 2=normal)[2]?

Testing addresses between 0x1000 and 0xDFF000

Begin pass 0, test 0 1
System Bootstrap, Version 11.0(10c), SOFTWARE
Copyright (c) 1986-1996 by cisco Systems
2500 processor with 14336 Kbytes of main memory
Ole Drews Jensen  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Not being an expert in memory testing, but I know that you can
control-break
 the router during startup and do a T M (test memory).

 Try and see...

 Hth,

 Ole

 ~~~
  Ole Drews Jensen
  Systems Network Manager
  CCNP, MCSE, MCP+I
  RWR Enterprises, Inc.
  [EMAIL PROTECTED]
 ~~~
  http://www.RouterChief.com
 ~~~
  NEED A JOB ???
  http://www.oledrews.com/job
 ~~~


 -Original Message-
 From: Johan Hjalmarsson [mailto:[EMAIL PROTECTED]]
 Sent: Thursday, November 01, 2001 10:54 AM
 To: [EMAIL PROTECTED]
 Subject: C2500 DRAM problem [7:24954]


 I've got some problem with a couple of 16MB DRAM modules for my C2500
 routers. I bought non Cisco memories for my lab routers, but I get Parity
 Error alot and the router just reboots. I also bought non Cisco flash
 modules, but these seems to work just fine.

 Is there some way to run a verbose check on the memory so that I can sort
 out if the problem is the router or the memory?

 I'd also appretiate if someone could point out what's so special with
these
 DRAM memories since Cisco wants so many bucks for them.


 Thanks in advance,
 Johan




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RE: C2500 DRAM problem [7:24954]

2001-11-01 Thread Ole Drews Jensen

Not being an expert in memory testing, but I know that you can control-break
the router during startup and do a T M (test memory).

Try and see...

Hth,

Ole

~~~
 Ole Drews Jensen
 Systems Network Manager
 CCNP, MCSE, MCP+I
 RWR Enterprises, Inc.
 [EMAIL PROTECTED]
~~~ 
 http://www.RouterChief.com
~~~
 NEED A JOB ???
 http://www.oledrews.com/job
~~~


-Original Message-
From: Johan Hjalmarsson [mailto:[EMAIL PROTECTED]]
Sent: Thursday, November 01, 2001 10:54 AM
To: [EMAIL PROTECTED]
Subject: C2500 DRAM problem [7:24954]


I've got some problem with a couple of 16MB DRAM modules for my C2500
routers. I bought non Cisco memories for my lab routers, but I get Parity
Error alot and the router just reboots. I also bought non Cisco flash
modules, but these seems to work just fine.

Is there some way to run a verbose check on the memory so that I can sort
out if the problem is the router or the memory?

I'd also appretiate if someone could point out what's so special with these
DRAM memories since Cisco wants so many bucks for them.


Thanks in advance,
Johan




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