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Computer locks up/freezes during gameplay

  1. Hello, and thank you in advance for your time in reading this post. I apologize if I posted this in the wrong forum.
    It's a little long, but I'll be specific as possible.

    A little back-story on this computer—
    I bought it recently (October of '09) and it's has had a couple of problems beforehand. The first one occurred a couple of months ago when it was overheating. When I went to get it looked, the repairman diagnosed it incorrectly as a video card failure (it was just the fan.) In the end, he replaced my good video card with a horrible shoddy one I had to get replaced. In doing so, I bought a nVidia 9800 GT card, but my computer's power supply was too low (350w or so, if I remember right), so I bought a 500(or 550?) watt one to help compensate. Everything was working fine then.
    Recently, it blue-screened on me one morning when I turned it on, and it wouldn't turn on again at all. (Not sure if this is related or not, but it happened the morning after my family replaced our home router because the old one died. The new one has been giving me a very hard time getting online, but I don't think it has anything to do with this...)
    Anyway, when I went to get it repaired again (at a different place), the guy there told me that it was a video card issue (again), and replaced by 9800 GT card with a 9500 GT one of the same maker.
    When I got home, it would constantly blue-screen on me after 10-15 minutes of use, so the repairman (Joe) told me to just leave it off for the night and see if it fixes itself in the morning, which it did.

    That's the back-story up until now.
    Now I'm having an issue that the computer freezes randomly when I'm playing a game (League of Legends, to be exact, but I think it would do that for any game.) To give you an idea (for those who don't know), a typical match in Leagues is about 35-45 minutes. When I say "randomly," it'll freeze sometimes 2-5 times during a single match, or none at all. When it does happen, the computer either loops the audio for a few moments, then freezes entirely, forcing me to hard reset it via power button, or it fixes itself after 10-15 seconds with some messed-up graphics (grass becomes complete patches of black, and so on) that fixes itself if I alt-tab in and out of it.
    I'm also having a problem when watching live stream videos (like on JustinTV, not Youtube) that causes the video to "spike" (the image itself freezes, then catches up in a few minutes) but the audio is completely fine. I think this might be related to the freezing as well.

    A bit about the computer itself:
    Motherboard: ASUSTeK (M3A76-CM)
    CPU: AMD Athlon™ II X2 245 Processor
    RAM: don't know the make/model of it, but I never replaced it. About 3.25GB
    GPU: NVIDIA GeForce 9500 GT (like I mentioned, I've gone through 3-4 different video cards since I got the computer last year)
    PSU: Antec EarthWatts EA650 650W
  2. Route44

    Route44 TechSpot Ambassador Posts: 12,141   +31

    First, did he charge you for the 9500? The 9500 is an inferior gaming card as compared to the 9800GT.

    Second, can you access your computer and attach your minidump files?

    How to find and post your Minidump Files:

    My Computer > C Drive > Windows Folder > Minidump Folder > Minidump Files.

    It is these files that we need (not the folder). Attach to your next post the five most recent dumps. Notice the Manage Attachments button at the bottom when you go to post the next time. You can Zip up to five files per Zip; if you only have one or two you don’t need to zip them, just attach as is. Please do us a favor and don’t Zip each one individually.
  3. RoundedHexagon

    RoundedHexagon TS Rookie Topic Starter

    Yes, he charged me $100 for the card, $85 for the service.
    He did give me back my old video card, but when I asked him if it still worked, he gave me a vague answer and just said, "keep it, you never know?"

    When I go into my minidump folder, there aren't any files in there.
    But I haven't had any BSOD since I took it back, and I've cleaned/defraged and such my hard drive since then unfortunately.
    I made sure that it was enabled in my Startup and Recovery tab from My Windows' property.
  4. Route44

    Route44 TechSpot Ambassador Posts: 12,141   +31

    Okay, then if you do get any BSODs just attach those files to this thread the next time you post.
  5. RoundedHexagon

    RoundedHexagon TS Rookie Topic Starter

    But I still have the issue about my computer freezing completely when I try to play any game, no errors or anything, just completely frozen in place.
    Am I supposed to live with it like that and pray that a BSOD does happen so I have minidump files...?


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