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Re: Hardware Question about RAM and Capacitors



On 12/13/2013 01:00 PM, Ralf Mardorf wrote:
On Fri, 2013-12-13 at 11:49 -0500, Goren Buckwalk wrote:
----- Original Message -----
From: Ralf Mardorf
Sent: 12/12/13 07:23 PM
To: debian-user@lists.debian.org
Subject: Re: Hardware Question about RAM and Capacitors

I would replace all capacitors in that area, not only the leaking. The
others will leak soon too.

If they fail is it likely they would damage other parts of the
systemn? Like RAM sticks or CPUs? Or even chips on the mainboard? Like
a spike/surge?
Better don't sent such a request not as a private mail. I redirect my
reply to the list.

I don't know. I need to ask a friend, but it's likely that somebody on
the list can answer your question. Possible yes, likely, I don think so,
perhaps yes, maybe not.

I would replace all capacitors for another reason. If the capacitors are
old and/or crappy and some already failed, it's likely that the others
soon or later will fail too, since they seem to do the same job and are
from the same vendor and the same type, perhaps with the same values.
Once you disassemble the mobo and replace some capacitors, you directly
could replace all of them, to avoid to do the same job next month again.
To avoid that there are sometimes issues, because they already don't
work perfectly.


To answer the specific question: Yes. When the capacitor fails, it will leak electrolyte onto the pc board, and that electrolyte is chemically active, and will eat the traces on the board. So not only do you want to replace the caps, you want to inspect the board in the local area, and clean it off with something like alcohol or lighter fluid,
if you find residue. (On a swab--don't dip the board!)

Having read this whole thread, and realizing that the board is 10 years old, I would tend to agree that it will be simpler to replace the whole works--board, CPU and ram. I think that's what I would do. (The old ram probably is not compatible with a new
mobo, and the CPU certainly isn't.)

--doug


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