Leaking electrolytic capacitors
 

Here's a more complete listing of manufacturers who have had/are having
quality issues with electrolytic capacitors.

http://www.answers.com/topic/capacitor-plague

In case this site gets nuked, here are the listed manufacturers:

Commonly failed capacitor brands

* Tayeh (A brand that does not appear to exist, indicating the actual
manufacturers were wary of putting their name on their product; and
probably a fake of "Ta-Keh", a genuine maker of high-end capacitors for
audio equipment, used by Denon)
* Chhsi
* Teapo (Teapo has denied these claims, and evidence suggests their
new capacitors are sound, however their older ones appear to suffer from
the same problems other brands do)
* I.Q.
* Rulycon (A clone of "Rubycon", a well-known manufacturer of
high-quality capacitors, right down to the exact style of the cases and
the fonts used for lettering)
* JPCON
* Jackcon (The only capacitor manufacturer to own up to their mistake;
they are also the only one to issue free replacement capacitors to people
who had theirs fail. Their new products appear to be of greater quality.)
* JDEC
* CTC
* (G) Luxon (also G-Luxon)
* Gloria
* Raycon
* Hermei
* Choyo
* GSC
* Nrsy (only with X-shaped vents. The new NRSY capacitors have K vents
and are a genuine, high-quality Nippon-made part.)
* Fuhjyyu (found in Antec power supplies to this day)

As of May 2005, some evidence
(http://www.ait.iastate.edu/sales/showitem.php?id=41) shows that the
failing Nichicon capacitors on the iMac, Intel, and Dell boards are due to
a different problem (specifically, overfilling the capacitors with
electrolyte) than the one discussed on this page (faulty electrolyte
formula). However, the symptoms (both the effects on the system and the
physical appearance of the capacitors) are the same as the other failing
capacitors, as is how to identify them, and the required repair.

(I've actually seen a Dell P4 motherboard that had failing Nichicon
parts!)

Leaking electrolytic capacitors
 

Hey ! Good for business...




Commonly failed capacitor brands

Leaking electrolytic capacitors
 

JW wrote:
As of May 2005, some evidence
(http://www.ait.iastate.edu/sales/showitem.php?id=41)

"This article has been removed"

shows that the
failing Nichicon capacitors on the iMac, Intel, and Dell boards are due to
a different problem (specifically, overfilling the capacitors with
electrolyte) than the one discussed on this page (faulty electrolyte
formula). However, the symptoms (both the effects on the system and the
physical appearance of the capacitors) are the same as the other failing
capacitors, as is how to identify them, and the required repair.

(I've actually seen a Dell P4 motherboard that had failing Nichicon
parts!)

I'm typing this on an Asus A7N8X Deluxe that has two visible Nichicon
caps that are bad. Both are 3300 uF, 6.3V caps. One is visibly leaking
a small amount of orange stuff out the top, the other is beginning to
bulge at the top. Neither started showing symptoms during the first
two years; the board was put in service 3/30/03 and started showing
about a month ago (the bulge-only unit started about three days ago).

I despair of finding 3300 uF in a 1 cm diameter package, so I'm saving
my nickels toward another mobo and hoping nothing catastrophic takes
out CPU, RAM, etc.

--
If John McCain gets the 2008 Republican Presidential nomination,
my vote for President will be a write-in for Jiang Zemin.

Leaking electrolytic capacitors
 

In message , JW
writes
(I've actually seen a Dell P4 motherboard that had failing Nichicon
parts!)
Seen lots, the Dell tech who replaced the two today (under warranty) has
seen many more, Dell themselves asked us to try and limit the number of
call-outs to five a day or under unless it's unavoidable, so I suspect
it's a fairly big problem for them!
--
Clint Sharp

Leaking electrolytic capacitors
 

On Wed, 2 Nov 2005 20:44:03 +0000, Clint Sharp
wrote:

In message , JW
writes
(I've actually seen a Dell P4 motherboard that had failing Nichicon
parts!)
Seen lots, the Dell tech who replaced the two today (under warranty) has
seen many more, Dell themselves asked us to try and limit the number of
call-outs to five a day or under unless it's unavoidable, so I suspect
it's a fairly big problem for them!

http://news.com.com/Bulging+capacito...3-5924742.html

It looks like Dell is well aware of the problem. I've personally seen
two Dell P4s with bad caps in the power supplies.
Andy Cuffe

-- Use this address until 12/31/2005

-- Use this address after 12/31/2005