What's up with my computer today

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My desktop computer was working fine till this morning. Then it shut down automatically and now when I press the power button nothing happens.
I tried on other power cables and plugs as well and still nothing happens.

The only problem I used to see with this computer what that it's fan made a noise while starting up and then the noise use to go after a while.

Is there any common problem which might have caused this?
  • Profile picture of the author webwyn
    This is probably related to the power supply (transformer) inside the computer. If your not a technical person, probably best to get it back to the shop (or wherever). If it's not a warranty issues then not too much worry as not really expensive to get repaired.

    Also, if it is just the power supply, then you are unlikely to have lost any data.
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    • Profile picture of the author gamesrebel
      Yeah I will probably get it back to the shop to fix it. But we have holidays for three more days over here so I will have to wait a bit. I was hoping I could fix it before that time.

      Anyways I am quite sure I will not lose any data.
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  • Profile picture of the author emarketingbd
    Cooling fan of power supply generally do not work or do noise when huge dust or other dusty things accummulate inside the fac. Please clearn the fan by blower or manually and see if the fan ok then your computer will work again. Some computer do not work when its cooling fan do not work. If your fan do not work though you run your pc by force mother may become too hot and out of order. So pls. take care about cooling fan and without its remedy do not operate computer.
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    • Profile picture of the author webwyn
      This could be cooling fan, power switch or any number of things relating to the power supply. As for cleaning the fan yourself, probably not a good idea unless you really know what your doing. The power supply is much higher voltage than many other components in the computer, so best not to mess with. Also, you would need to be careful blowing dust from PSU cooling fan, that dust does not get inside PSU.
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  • Profile picture of the author seasoned
    To the best of my knowledge, there is ********NO******** feedback from the fan! If this is still true, HIGHLY likely, since NOBODY CARES if the fan works! Fixing the fan won't suddenly make your system work.

    HERE is how the fan works, last I knew, and believe it STILL does with INTEL based computers.....

    The fan blows air either automatically, for MOST desktops, or at the behest of the CPU, or some other circuitry, in MOST laptops. The computer works REGARDLESS of whether the fan works or not. Some circuitry, like the CPU will run the fan at various speeds for various temperatures, to cool things down. If things get TOO hot, the CPU may shut everything down. If things get too hot for too long, THINGS WILL BREAK!!!!!!! This INCLUDES LOSS OF DATA!!!!!!!!!

    IF your computer DID shut itself down, because it was too hot, wait an hour or so, and try to turn it on. If it boots, but the fan doesn't run, you can be fairly sure that it was to shut things down. Turn it off, and take it to a good place to get the powersupply replaced(The main fan on most laptops is part of a sealed powersupply) If the fan DOES turn, but the computer boots up, look for a little fan on or near the CPU. Most heatsinks these days are WAY too small, and they have a fan to compensate. It SHOULD come on within a few minutes probably. If it fails? Well.... Have them replace THAT fan. USUALLY it is separate, so the cost will be minimal.

    Again, if you let it cool down, running it for a little while(Less than 20 minutes or so) to check these things out should be fine.

    BTW depending on the clutter, your dexterity, etc... You MIGHT want to replace them yourself. If so, make sure you are grounded, observe polarity, Make sure things click into place, be gentle, etc... Even ONE spark can damage a computer, and sometimes it is EASY to bend pins, set a part crooked, etc... So BE CAREFUL if you do it yourself.

    If both fans work, it could be almost anything else. HECK, even a crashed disk can overrun the fans, and cause the CPU to shut down. A SHORT can cause the power supply to shut down. It can blow a fuse(Although then NOTHING would work).

    Steve
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