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  1. #1
    Keep honking. I'm reloading Cele's Avatar
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    Default Computer keeps turning off

    Hey guys, randomly when I nudge my computer or really when any of the ports get touched (just tried to move my mouse cord) my computer turns off. When I go to turn it on the fans spin for a millisecond and then die. However after clicking the on button a few times in a row my computer turns on. Any ideas?

  2. #2
    If you choke a smurf, what color does it turn? PandaTantrum's Avatar
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    Most likely cause would be dodgy wiring/loose wires or something like that I would imagine.

    Open it up (completely unplug it from the mains though) and see if you can see any loose connections anywhere.

  3. #3
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    This may be a possibility - check to make sure your graphics card fan is running (and hasn't burned out). If the fan stops, or if it isn't providing enough heat dissipation, your computer will shut down automatically. If it's far enough gone, you could have burned the card up completely (by overheating).

    The reason I think this might be the case - you said it only turns on after you've done x multiple times (or... the computer has cooled off enough to turn back on).

    Panda's suggestion is also a likely culprit, but if this has happened multiple times, a short would have done considerably more damage.

  4. #4
    Banned from Forums ZED's Avatar
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    There can be many issues but always start from basics and then go deeper.
    1. Check if you are not having troubles with wall socket.
    2. Check if all connections, cords are properly attached - inside and outside of the computer.
    3. Check if all parts, memory modules are not loose.
    4. Check your CPU and Chipset temperatures in BIOS when you power on your PC.
    5. Try running with single RAM module. Try all modules one at a time.
    6. Check CPU, GPU, Chipset idle and full load temps.
    7. Might have problems with Power Supply. If you have a spare one, swap and check if the problem persists or not.

  5. #5
    Keep honking. I'm reloading Cele's Avatar
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    Quote Originally Posted by AOD_Guybrush View Post
    This may be a possibility - check to make sure your graphics card fan is running (and hasn't burned out). If the fan stops, or if it isn't providing enough heat dissipation, your computer will shut down automatically. If it's far enough gone, you could have burned the card up completely (by overheating).

    The reason I think this might be the case - you said it only turns on after you've done x multiple times (or... the computer has cooled off enough to turn back on).

    Panda's suggestion is also a likely culprit, but if this has happened multiple times, a short would have done considerably more damage.
    Well this scares me a bit. I don't think it's the GPU fans because my computer seems to shut off within 5 minutes of it booting, it doesn't even need to be playing a game. I'll do everything instructed and inspect the GPU. I'll keep you guys updated, thanks.

  6. #6
    I am the Angry Chameleon! Lord DTR's Avatar
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    It could be a thermal limit being reached but it sounds to me as shorting happening somewhere in the system. The fact that you have this problem with the mouse suggests that it has something to do with the USB ports. Have you tried another port for the mouse or another mouse?

  7. #7
    Nuke it from orbit, it's the only way to be sure. Crymic's Avatar
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    Sounds like lose cabling. Crack open your case and check the stuff posted above. Also make sure everything is securely plugging in. Another thing, but dunno might be a wild guess. Your power supply could be failing, when it's dying it causes weird shit to happen.

  8. #8
    Gimmi Your LOOT! AOD Member AOD_B1ackBishop's Avatar
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    I thought "thermal issue", but since your system isn't on long enough to overheat, I doubt that's the issue.
    Could well be a wiring issue as stated before, or, as has happened to many of my customers with the same symptoms, a faulty PSU.
    Insanity: doing the same thing over and over again and expecting different results.
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  9. #9
    If you choke a smurf, what color does it turn? Peasnriz's Avatar
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    Check the usb connectors are not shorting inside the case on the mobo.

  10. #10
    Live and let live CapnVG's Avatar
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    Make sure you don't have any small animals living in your computer. It could be mother nature telling you to go outside.

  11. #11
    Save the whales. Collect the whole set MightyDWC's Avatar
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    I had this same thing happen to on a old system (not my current build). Without bringing to my friend that works on computers, he told me to pull the power, and "re-seat"(pull every plug and component off the MB and put it back on) except for the CPU. That fixed my issue.

    Also, the sodering points on the MB to the various sockets could be starting to get weak and are making bad/ intermittent connections. This happens from these points getting heated up, then cooling down, over and over again from turning the computer on and off. This is the MAIN reason I do NOT turn my computer off when I'm not home. Alot of businesses do this as well.

  12. #12
    Criminal Lawyer is a redundancy Velozzity's Avatar
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    Quote Originally Posted by AOD_MightyDWC View Post
    I had this same thing happen to on a old system (not my current build). Without bringing to my friend that works on computers, he told me to pull the power, and "re-seat"(pull every plug and component off the MB and put it back on) except for the CPU. That fixed my issue.

    Also, the sodering points on the MB to the various sockets could be starting to get weak and are making bad/ intermittent connections. This happens from these points getting heated up, then cooling down, over and over again from turning the computer on and off. This is the MAIN reason I do NOT turn my computer off when I'm not home. Alot of businesses do this as well.
    I'm like 99.999999% sure that the temperature that a PC gets to even while stress testing is nowhere near the point needed to melt solder. A few google searches pulled up around a 180c temp for traditional Tin/Lead Solder with lead free about 227c. http://www.hardwaresecrets.com/rohs-explained/ Your pc would shut off if it got above like 100-110c due to the thermal protections in the CPU itself. Most issues with solder are from a cold solder joint https://www.circuitspecialists.com/b...-repair-part1/ created when the solder isn't fully melted at time of component installation on the PCB, these joints tend to work fine to begin with but crack over time causing headaches like the OP listed. But im pretty sure any properly selected (for the type of circuitry) and applied solder will last indefinitely unless there are user induced stress (like plugging and unplugging USB ports, etc) which over time weaken the joint to point of failure. Yes on very rare occasions thermal expansion causes solder joint failure, but most of the time the thermal expansion just exacerbates a pre existing problem.


 

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