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Is Your Computer a Fire Hazard Waiting to Happen?

whoppers asks: "I'm sure we've all had our share of computer fans die, but what happens if your box is running while you're at work and several fans go out? My in-laws spare TigerPC AMD K62-400's power supply fan just went out about two hours ago, and the thing was blazing hot. A little poke to the blade, and it started up again, but shouldn't these things be made to stop if the fan stops for any reason? I'm starting to wonder if I should start leaving my box off when I'm away for a few hours. Since it's usually wide open, I don't see too much harm, but these cheap boxes that never get opened and cleaned have to be a hazard right? I can't afford a halon system in my office just yet. The only link I found related to this is here and should a few more people read this, here's the cached version. Does anyone have any thoughts or stories related to this?" The fact that this article appears on July 4th, when most Americans will be lighting fireworks is purely coincidental. That doesn't change the fact that the submittor raises a very good point. A general rule of computers is: the older they get, the more dusty they are and dust bunnies and their denser cousins are highly flammable. Unless you can keep such machines clean, it' is probably safer to leave them off.

7 of 514 comments (clear)

  1. Warning: troll article by Anonymous Coward · · Score: -1, Troll

    If I wanted to see stories like this, I'd watch Fox News!

  2. A site for Angry folks by Anonymous Coward · · Score: -1, Troll

    Come to ANGRYdot for progressive discussion and ideas. Remember, you fucking retarded libertarians are not invited. Same goes for idiot conservatives.
    Rot in hell you smelly assfuckers!

  3. Re:It's happened to me.. by Ignorant+Cocksucker · · Score: -1, Troll
    The UL Mark on a product means that UL has tested and evaluated representative samples of that product and determined that they meet UL's requirements. In addition, products are periodically checked by UL at the manufacturing facility to make sure they continue to meet UL requirements.

    From their website. I think this is what we need to avoid our power supplies gonig up in smoke.

  4. Don't worry, be happy... by Ali+Jenab · · Score: 1, Troll
    I am a certified MCSE with over 15 years' experience in the computer industry. In those years, I have seen some small fires occur, but never in the way that the article mentions. Let's take a look at some facts and mitigating circumstances that can help explain why the "safety digest" article is dreadfully wrong:
    • All computer power supplies have temperature sensors. These are bona fide safety devices that shut the supply down when it overheats - regardless of cause. Some of them permanently disable the supply (under the assumption that once they're triggered, enough damage has been done to make the supply unsafe for use). Others disable the supply until it is unplugged and the obstruction is cleared. I have seen dozens of power supply fans fail on very old, dusty PCs, and not a single one has caused any sort of smoke or fire.
    • Fire suppression systems do not respond to smoke. According to the current national fire code, the presence of smoke shall not be used to trigger fire alarms - only local smoke detectors. Why? The cause is simple: the ratio of burnt toast to uncontrolled fires is about 200:1. The resultant false alarms would overwhelm fire departments and cause a public safety nightmare.
    • Computer fires almost never leave the case. Nothing inside a computer is particularly flammable. The threat of dust fires is overrated - dust is not sufficiently dense to ignite anything else, and when ignited it burns up within seconds. Computers do not contain much wood, paper, or any other inflammable substance. Face it folks - metal doesn't burn, and plastic doesn't do much besides smolder.
    Now let's take a look at some actual computer fires that I have witnessed:
    • My younger brother, a developmentally disabled individual, plugged in a PCI card backwards and the motherboard burned up. Several members of the chipset were burned beyond recognition. No water or other measures were needed to put the fire out; it fizzled on its own within seconds.
    • I have seen several laptops overheat because of poor cooling designs (especially Dells). Typically this means that flames leap out of the keyboard and melt the LCD. Again, this fire is contained, and unless the laptop is being operated in a hazardous area, nothing happens.
    • One of my "hax0r wannabe" co-workers thought he understood electrical engineering, and caused a brick transformer to catch fire because he had wired the + and - sides of the output together to "double the power." The transformer was destroyed, but since almost all power strips are flame retardant, nothing else caught on fire.
    The truth of the matter is that it is extremely difficult to start a destructive fire by accident. 90% of home fires in the country are caused by stupidity such as kitchen incidents and smoking in bed. There is no reason to suspect that your computer is any more of a hazard than leaving your VCR plugged in all the time.

    /ali

  5. Re:The reason you can't find any info by Anonymous Coward · · Score: -1, Troll

    WOW
    Your fan stops and the inside of your case turns into a vacuum chamber. Maybe you take your computer to MIT, its obviously a miracle machine and you could just win a Nobel Prize.

    I have yet to see a case that had fire resistant insulation. Fiberglass??? METAL?? We are talking about the pieces of PLASTIC on the the motherboard.

  6. Re:Danger with Old PCs by khuber · · Score: 0, Troll
    You're right. WD-40 is a superlative lubricant. How could I have ripped on it just because it isn't primarily designed as a lubricant and has never lubricated anything well in my experience?

    In fact, I just used it for some of the best anal sex I've ever had and replaced the oil in my car. It worked great on both counts. Thanks! P.S. Did you know WD-40 also tastes great on crackers and makes a good hair conditioner? Next time you make pasta, spray in some WD-40 and the noodles won't stick.

    -Kevin

  7. mod the idiot down please. by Elminst · · Score: 0, Troll

    Try realizing that the USA is not the center of the universe.

    (and yes, I'm an american. Morons like you piss me off.)

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