Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Mac
 
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Default bad caps on motherboards

Hello,
I have had two motherboards in a row that have bad capacitors, domed and
leaking. One was on a Gateway so I thought, well it's a Gateway. But the
other is a Gigabyte. Same caps on both boards, 1500mf 10v 105c green
with gold stripe.
Do you think there was a bad batch of these caps or is this just a low-end
motherboard issue?
Thanks,
-Mac


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Default bad caps on motherboards

Where have you been the last few years?
This has been a well documented and posted problem for the last several
years.
Some China knock off firm made some very large batched of watered down
electrolyte and sold it to capacitor manufactures all over the Asian
rim. As a result capacitors have been failing prematurely for some
time.

Google for lots of really good information on bad capacitors.

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Wayne
 
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Default bad caps on motherboards

On Sat, 11 Mar 2006 22:20:25 GMT, "Mac"
wrote:

Hello,
I have had two motherboards in a row that have bad capacitors, domed and
leaking. One was on a Gateway so I thought, well it's a Gateway. But the
other is a Gigabyte. Same caps on both boards, 1500mf 10v 105c green
with gold stripe.
Do you think there was a bad batch of these caps or is this just a low-end
motherboard issue?
Thanks,
-Mac


Great site here with lots of info
http://www.badcaps.net/
Wayne

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Mac
 
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Default bad caps on motherboards

Well, I'm kinda new to motherboard repair. Thanks for the link.

"Wayne" wrote in message
...
On Sat, 11 Mar 2006 22:20:25 GMT, "Mac"
wrote:

Hello,
I have had two motherboards in a row that have bad capacitors, domed and
leaking. One was on a Gateway so I thought, well it's a Gateway. But the
other is a Gigabyte. Same caps on both boards, 1500mf 10v 105c green
with gold stripe.
Do you think there was a bad batch of these caps or is this just a low-end
motherboard issue?
Thanks,
-Mac


Great site here with lots of info
http://www.badcaps.net/
Wayne



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gb
 
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Default bad caps on motherboards

"Mac" wrote in message
ink.net...
Hello,
I have had two motherboards in a row that have bad capacitors, domed and
leaking. One was on a Gateway so I thought, well it's a Gateway. But the
other is a Gigabyte. Same caps on both boards, 1500mf 10v 105c green
with gold stripe.
Do you think there was a bad batch of these caps or is this just a low-end
motherboard issue?
Thanks,
-Mac

Mac -

This problem even made it to the IEEE publication in 2002. I fixed my
nephews bad HP computer ... replaced about 15 of these bad capacitors on
that 4-layer ABIT motherboard (I have a Pace desoldering system - s the
proper tools were at hand for this operation). BTW, GOOD replacement
capacitors (I used Panasonics) are not cheap (thanks to this mess).

gb
====
History:
http://www.badcaps.net/causes/

How did this happen?
The reason this problem exists is because of a large-scale industrial
espionage (e.g. let's steal the secrets instead of paying the license)
foul-up. Some companies decided to steal an electrolyte formula from
another competitor. Little be known to them, the stolen formula was
incomplete and flawed. They didn't discover this until it was too late and
they had manufactured and distributed literally MILLIONS of these flawed
capacitors. It was way too late for any kind of recall, and even today,
these crappy components are being used in new motherboards!! I
These go into extreme detail on the actual espionage ring and how this came
about. This was the modern-day Rosenberg incident of industry...
The cause...
This inferior and flawed electrolyte formula was used by a number of
component manufacturers that sold to many different, reputable, and well
known motherboard manufacturers. This problem isn't isolated to one
particular brand of motherboard, and not even isolated to motherboards
alone. I won't mention brands, but a VERY popular monitor manufacturer has
been plagued with RMA's on some of their monitors that were built using
these inferior capacitors. This problem has been reported in computer
motherboards, monitors, televisions, radios, and stereo equipment.




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James Sweet
 
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Default bad caps on motherboards

Mac wrote:
Well, I'm kinda new to motherboard repair. Thanks for the link.



It's not just motherboards, I ran into those caps on all manner of things.
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