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Technology Hardware

PCs Plagued by Bad Capacitors 335

Hawaiian Rules writes "CNET has a story detailing a new threat to Dell PCs, Apple iMacs and other computers with Intel boards. This has been documented on BadCaps.net for some time, but the article also discusses what to do if you suspect you've got a case of the bad caps."
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PCs Plagued by Bad Capacitors

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  • by starbuck8968 ( 224854 ) on Friday November 11, 2005 @12:37AM (#14005015)
    I've had a couple AMD boards go bad because of leaky capacitors.
  • by PlusFiveTroll ( 754249 ) on Friday November 11, 2005 @12:49AM (#14005086) Homepage
    Epox, Asus, Abit have all had bad caps on a few boards for me. Not exactly wide spread, I'll have 3 or 4 of the same board and only one will fail. But its something I've noticed with about every manufacture so far. Manufactures so far have been excellent on RMA'ing the product quickly.

    On our systems with UPS's this seems to happen less often, my guess is the cleaner power puts less stress on the board.
  • by ebrandsberg ( 75344 ) on Friday November 11, 2005 @12:51AM (#14005096)
    Actually, I would go against this--something totally new and expensive will probably make use of better quality components. It is after they have been in the market for a while that they go cheap as they sell in mass and drive price down. Ever notice how old CD's lived forever, but new CD's scratch if you breath on them? I had one of the original 42 inch plasma screens, and it was built like a brick, I don't think I trust the new ones, they are lighter, thinner, and IMHO, built to be cheap, not last forever.
  • Re:Modern Times (Score:3, Interesting)

    by shanen ( 462549 ) on Friday November 11, 2005 @01:03AM (#14005166) Homepage Journal
    That's almost surely an urban legend. On the other hand, I heard that IBM had some similar problems with bad capacitors a few years ago. Affected a pretty large number of NetVista models, I think, though the absolute numbers of bad motherboards wasn't so bad... I don't know any of the details, but I have a fuzzy recollection that most of the bad capacitors were traced to a particular source in Taiwan.
  • by mhore ( 582354 ) on Friday November 11, 2005 @01:17AM (#14005223)
    I inherited a bunch of 3 GHz P4 Optiplex machines back in '03 after they were decommissioned from a student computer lab. The university buys cheaper machines as they only keep them around in the labs for a year or so normally.

    Well, I roped them together into a really nice Beowulf cluster for running my simulations and for the past 2 years I've had nodes die left and right. I'm sure the machines are out of warranty now, but I really hope Dell fixes these machines. I seem to remember Gateway doing this back in 2002. Now that the official word is out, maybe the computer department will take my word for it. What does a silly physicist know about computers and motherboards anyway?

    Mike.
  • by jbellows_20 ( 913680 ) on Friday November 11, 2005 @01:30AM (#14005296) Homepage
    I've had a couple AMD boards go bad because of leaky capacitors.

    That's nothing. I work at a university where we purchased hundreds of the Dell GX270 a couple years ago. In the last year we've had almost all of the fail on us (we are expecting all to fail in time). The worst part is that we've had to wait up to 4 weeks to get warranty service when we paid for NBD service. The hold up we were told was due to backorder.

    The warranty service tech tells us the problem is with the faulty capacitors. Gotta love how businesses screw themselves when they trade quality for cheap, unreliable parts.
  • by earnest murderer ( 888716 ) on Friday November 11, 2005 @01:32AM (#14005306)
    The capacitor issue is more widespread. The problem isn't that they are low quality, it's that a particular MFR was using a stolen and bad formula for fluid for a long while before they began to fail. These capacitors are in everything, cheap stuff, spendy stuff and everything in between. Badcaps.net explains in detail...

    On the theme of new and expensive, I'm a little suprised that motherboard MFR's that make high end boards for enthusiasts (you know the ones, with ugly flourecent plastic bits and silver paint and whatnot) haven't used any SMC caps for these boards. You only see them on prototypes. I'd think if there was a market for a motherboard with yellow PCI slots and a purple PCB that this would be a much more attractive option.

    On the other hand, I suppose it costs nothing to make lime green and orange connectors, but actually making something nice would cost a few dollars.
  • by Spacejock ( 727523 ) on Friday November 11, 2005 @02:13AM (#14005466)
    More than just PC boards. My TEAC 80cm telly went bung about 18 months ago, and my parents' identical model went 6 months later. Bad caps, $180 repair bill.

    My in-laws' Netvista fell over last week, lots of magic blue smoke and 3 stuffed capacitors. The twin of that machine blew up 4 months earlier.

    The air flow & knock sensors in my car went - $1450 repair bill. Is there going to be a class action? If so, that was the capacitors.

    Gotta go... my washing machine is making funny noises.
  • by EvilMidnightBomber ( 778018 ) on Friday November 11, 2005 @02:16AM (#14005482) Homepage
    ... with a rounded instead of a flat metal top

    These are easily tested using the patented Bugs Bunny artillery shell quality control inspection procedure: Tap sharply with a hammer and if you are still alive, write "dud"..er.."good" on the side with a sharpie.

    Seriously, this sounds like a double foulup by Nichicon. Overfill with electrolyte so there is insufficient airspace for thermal expansion, then screw up the emergency vent hole at the bottom so the thing has no choice but to burst. I've blown plenty of electrolytics in my day (midnight soldering sessions, reversed polarity, yada) About 9/10 times the vent hole blows first. Maybe 1/10 times the whole can blows off the base. Getting the can to deform this badly without either happening is pretty impressive.
  • by artifex2004 ( 766107 ) on Friday November 11, 2005 @02:25AM (#14005521) Journal
    I thought a Dragon Plus would have been one of their best, and maybe it was, but after months of swapping out stuff trying to figure out what was crashing my system, I finally pulled the motherboard out, and it looked like I had dried bloodstains on it. This was just over a year after I bought it.

    What needs to be remembered is that often a system with bad caps can damage other components, from memory to the CPU to hard drives, even cards attached to the PCI bus. This was devastating when it happened to me.
  • by vettemph ( 540399 ) on Friday November 11, 2005 @03:04AM (#14005683)
    I have not read the article BUT when they say "Intel boards" I think they mean "Intel Boards" and not "boards which take Intel processors".
      So, Saying "AMD too" is not correct. Compair Intel boards to ASUS, Chaintech, Dell, Giga-Byte....

  • by Shanep ( 68243 ) on Friday November 11, 2005 @03:26AM (#14005753) Homepage
    (And don't forget they are polarised. Putting them in backwards will make them explode)

    The best looking cap explosion I ever saw, was a tantalum which I accidentally soldered in the wrong way, while building a digital frequency meter.

    Once it came time to test... a small bit of the top popped off and a silver molten stream of what looked like beads of mercury came gushing out and off that stream came lots of smoke. It looked so cool I half did not want to switch it off. ; )

  • by Anonymous Coward on Friday November 11, 2005 @03:32AM (#14005779)
    I work for HP's customer support. If you tell the customers about internally known issues, you can get fired for it. The reason? The customers may go to the press and say that HP knows about a problem but isn't doing anything about it (like a recall of all units for instance). HP looks bad if you say you took "5 calls just like this one" today. HP looks good if you instantly order a repair on a seemingly unknown problem. The exception is for class issues, i.e. issues that are known to the public due to media exposure. It's part of the agent training to pretend we're oblivious to all problems, yet magically know how to solve them anyway.
  • i had one (Score:3, Interesting)

    by Keith McClary ( 14340 ) on Friday November 11, 2005 @04:21AM (#14005948)
    i had one in a standard el-cheapo power supply. impressive bang, cloud of white smoke, box full of cap shreds.
  • Re:mod parent up (Score:3, Interesting)

    by Shanep ( 68243 ) on Friday November 11, 2005 @05:13AM (#14006166) Homepage
    people always think I'm dumb for going cheap (second hand, bottom-tier, whatever) on cars and computers and electronics

    I love trawling through ebay for certain older Sun's, DEC's, etc.

    Whenever I buy something here is Australia from a department store, especially from one like Big-W, Target or K-Mart, I am left thinking on the way home, "is it going to work when I get it out of the box? If it does, for how long?"

    I bought a DVD player just recently from Big-W. I think it was rebadged to AWA. The model was on display, which at the time was being used to run a PSP promotional DVD which was displaying in only shades of purple on the cheapo flat screen TV it was hooked up to. I asked the lady if the TV or the DVD player was broken and she said they were fine, it was the promotional DVD which was done all in shades of purple (in my head I heard Dr. Evil say, riiiigh-T). I asked if they ever got returns on that model DVD player and she said she knew of none.

    I should have realised, that she would not know. She is in sales, she is not at the huge returns desk near the front with the long line of less than happy customers with various "goods", hmmm okay "items" for return. I asked the nice young girl behind the counter about this model of DVD player which I was returning (because it would not recognise ANY DVD, not even the two I had just recently purchased with zero scratches) as to how many returns she had seen and she told me that she had seen lots of those units come back.

    I also noticed this time what looked like the same PSP promotional DVD playing, except in full colour!

    This is the third component DVD player I have had fail.

    price hasn't equaled quality since your grandpa's day when everything was built out of painted steel and machined parts.

    Reminds me of something I have been saying for a few years...

    "You rarely get what you pay for, but you usually pay for what you get."

    I recently spent $5,000 Aussie on a Sony notebook. Admittedly the display is spectacular and I expected the Sony to be a decent product. It mostly is, however it is a little flimsy. After only a few months of use the paint on the palm rests is wearing off. For one third to one quarter the cost of a decent small brand new Japanese car (did I say decent? Sorry, my expectations must be slowly sliding down in this new World), it would have been nice for this machine to at least have a metal top and bottom. I am fearful of moving it for the wear from flexing the chassis. My girlfriends Thinkpad has also broken all around the screen where the hinges are.

    I like the look and feel of Powerbooks, but even they have issues, since their metal is just thin enough to cause permanent apparent warping in some cases, so I have heard.

    I want quality and I am willing to pay for it! But I can't find it! It seems that I would need to, as you suggest with the industrial comment, purchase a hardened computer designed mostly for the US military if I want any decent level of sturdiness. But then I'd be paying 4-6 times the price of the consumer equivalent for a very heavy and strange looking machine. Fair enough, I expect that stuff to be super expensive due to the added hardness and limited economies of scale, but surely with the economies of scale which the consumer gear manufacturers can leverage, they could at least give us something acceptable.
  • by lowrydr310 ( 830514 ) on Friday November 11, 2005 @08:14AM (#14006823)
    Ever hear of a DSM? It's "Diamond Star Motors", a joint venture between Mitsubishi and Chrysler. Their first generation (1989-1993) Mitsubishi Eclipse, Eagle Talon, and Plymouth Laser is notorious for leaky caps which renders the ECU useless, thus rendering your car useless. New ECUs are around $1000 I believe, so many first generation DSM owners like myself replaced the old ones by hand. Unfortunately this problem didn't show up until after the warranty expired, but it was still a very common problem.

    Faulty components can really cause problems for manufacturers. Slashdot recently ran an article about digital cameras failing because of faulty Sony CCD sensors [slashdot.org]. The problem didn't just affect Sony cameras as several manufacturers used Sony's chips in their products.

  • by Anonymous Coward on Friday November 11, 2005 @10:42AM (#14007708)
    But the demands on electronics are way higher now. The power density, temperatures and frequencies are much higher now (remember those 486s that ran only slightly warm with no heatsink?). You get more current being constantly pulled through the capacitors at a higher frequency (although that applies more to the switchmode side of things, rather than the linear regulators around the CPU), with hot air being blown around.

    It's pretty normal in all fields for high performance to equal tighter tolerances and less room for error. It's more than just "the good ol days when things were made properly", although that is a factor too. There's a shitty cycle of consumers shopping for the lowest price and companies compromising products in order to compete. I've noticed that if you try to buy outside of that cycle you pay way more, instead of just the cost of better components and a slightly more complex design. This must be because a slightly more expensive product doesn't acheive a high enough sales volume. But these better products aren't enough better to account for the big price jump. And so the vicious cycle continues. Booooo.
  • by twitter ( 104583 ) on Friday November 11, 2005 @11:56PM (#14013703) Homepage Journal
    This is where a little bit of knowledge can be a bad thing. ... If you do decide to DIY, I suggest you buy [fancy caps]

    A lot of knowledge never makes up for bad judgement. It's broke, what you do won't make things worse. This is a case of little to lose and something to gain.

    The board is dead or flaky because it has cheap caps. Do you think putting new cheap caps will be worse? The worst you can do is screw up the traces with a cheap soldering iron. Then your dead board remains dead and you move on.

    Back in 2002, I fixed a board this way. The cheapest caps from a reputable dealer cost me less than $10 and the board still works. I had little to lose and some time. It was worth the time and money. It cost much less than buying a new motherboard. It has run continuously and still serves as an email spam filter and back up computer.

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