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A glitch that crashes my PC, no certain information of the origin

Discussion in 'Windows Vista' started by CasualGamer, Jan 20, 2015.

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  1. CasualGamer

    CasualGamer Thread Starter

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    Hi, I'm a new guy.
    I've had this problem just about ever since I got this pre-build PC. It comes and goes as it pleases, it seems rather random and it is a problem. The best way for me to open this topic is to explain what the problem is/what does it cause.
    Nowadays after facing this problem for numerous years, I've learned to identify the problem showing up from the get-go. The problem is that when I freshly boot my PC, it oft crashes down, if I do not reboot it immediately after starting it up. For some reason restarting turned out to be the best of cures for it, apart from actually finding the problem.
    What happens if I do not restart my computer, is quite annoying. More oft than not my computer will shortly (1-120 minutes after a full start-up) crash in a way that first screws up my display (Imagine displays as sections formed like this: |||, in a given order of 1, 2, 3. The way my screen gets screwed up first is that the order changes, showing up as, for example, 2, 3, 1) and soon after the screen goes into a state filled with stripes (blue and dark blue stripes, if I recall). Past this point my PC will not answer to any commands, from keyboard nor the PC itself (power button), but I have to use the kill switch (hold down power button).
    After my computer has crashed by this sequence, it often takes several attempts at starting up my PC, as most of the times my keyboard and display do not get any response from the ongoing PC, once again requiring me to use the kill switch.
    I completely wiped down my system and re-installed everything not too long ago, and the problem was gone for a week or so, but soon returned. I've checked as fresh installs for everything I could and there should not be any obvious conflicts with my PC hardware. I could really use some insight and help, since I'd rather not restart my PC for the rest of its lifespan.
    And I can't emphasize this enough, but so long I restart my computer right after starting it up, everything works fine apart from the need of restarting. (I forgot to mention this earlier, but the times my computer would inevitably crash, the start-up and processing speed of my PC would be significantly reduced)
    I'll put down DxDiag and other possibly necessary items (ask for anything that I lack).

    http://codepaste.net/94gakv (DxDiag)
     
  2. PcPhoenix

    PcPhoenix

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    Jan 18, 2015
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    That sounds like a problem with your video card (AMD Radeon HD 6800 Series), I am 99% certain that if you get a new card your problem will go away. Try purchasing a new card and see if it fixes the problem, if not you can keep the receipt and return the card.
     
  3. CasualGamer

    CasualGamer Thread Starter

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    If it's my video card, do you suppose it's a unique hardware problem or a model incompatibility problem?
     
  4. PcPhoenix

    PcPhoenix

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    Unique hardware problem. Except it's not that unique. Video card GPU's die all the time, and when they do it's very often by throwing up random colored pixels and lines all over your screen before the computer freezes, BSOD's, or reboots.

    The truth is that it's not even the GPU itself that's dying, but rather it's the BGA connection to the PCB board that is damaged, so signals to/from your GPU can't make it to their destination.

    BGA maybe stood a chance when everyone was using proper lead solder, but RoHS and other standards demanded the removal of lead-based solder from consumer electronics, and as a result a new non-leaded alloy is used which can be non-eutectic and has a much higher melting point. As a result solder joints are now weaker and less reliable. Thus your video card problems.

    EDIT: If you do decide to get a new card and you don't want the old one, you can try running a fun experiment. Remove your old video card, and put it horizontally on top of a mug in your oven. Set the oven to ~240C and put a meat thermometer (if you have one) into the oven. Watch the temperature as your video card cooks, and when the temperature hits 240C, shut off and open the oven to let it cool quickly. Then stick the video card back into your computer and voila, there's a good chance your video card will be perfectly functional, at least for a while (weeks/months).

    But be careful. Electrolytic capacitors which may be present on your video card do not enjoy such high temperatures and might start leaking. In which case you should just throw the card away. You can try wrapping them gently in foil to prevent this, but I'm not sure how well that works.
     
  5. CasualGamer

    CasualGamer Thread Starter

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    A somewhat final question (at least so I hope :p ); is this situation plausible even if the card was supposedly fresh from the manufacturer when the PC was built? (The warranty has long ran out though, so that is not my meaning).

    Anyhow, thanks for the help and brainstorming (not to mention the top notch clarifications), I'll keep my thumbs up and try the solution!
     
  6. PcPhoenix

    PcPhoenix

    Joined:
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    Sure. The factors that determine card failure are:

    1) Age
    2) Cooling
    3) Manufacturing process, quality, and materials.

    Very often, some cards, or even series of cards, are simply soldered poorly under poor conditions without much attention to quality. Some are soldered well, but die due to poor cooling causing significant thermal stress. Some just die because of age.
     
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