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IEEE Spectrum Article on Motherboard Capacitor Failures

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pentode

Technical User
Dec 7, 2002
190
US
This month's Spectrum has an article concerning the on-going problems with failures of electrolytic capacitors on motherboards. The article confirms that these failures are due to defective electrolyte in some capacitors from Taiwan.

Abit has apparently been the hardest hit, but others, including IBM are also having problems. The article says that Abit will repair any board that has defective capacitors, although that is not what they told me when mine failed out of warranty. Maybe they have changed their position.

If you are having intermittent problems with your computer, or it will not boot, POST, or otherwise is acting up for no apparent reason - take a look at the capacitors on your motherboard. If the tops are bulging out, or you see black gunk leaking around the base, the caps are bad and must be replaced. Or you must replace the motherboard.

If you elect to replace them, you should replace them all, not just the ones that have failed, because the others will likely fail in the near future.

HTH.
 
Don't overlook that the power supplies are subject to catastrophic failure for this reason, also.

If you're there to witness the failure, you'll hear a loud pop just like bubble wrap being squeezed. Newposter
"Good judgment comes from experience. Experience comes from bad judgment."
 
I didnt think this was still going on....We had about 7 boards go out 2 years ago. I believe they were the KA7-100's or somehting like that. Basically the boards started flaking out. Everthing was pointing towards bad IDE Controllers or Bios problems when someone showed me the article regarding the capacitors. That's when I noticed ours boards had some black goo coming out the bottom of the capacitors. Once burned on Abit, it is hard to go back......faithful user of Asus and Tyan!
 
I suspect than any new **capacitors** purchased now are probably OK, but there may still be bad caps in stock and mobos in stock that were built with bad caps.

 
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