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    Old 07-14-2010, 11:05 AM
    wiggles wiggles is offline
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    Default Why is my PC freezing?

    I'm wondering if anyone here can give me any advice to help me track down the reason it's been freezing.

    Basically I'll be playing a game happily and suddenly the screen will go black and completely unresponsive and the only way to recover is to reset the PC. Recent games I've been playing are Mass Effect 2, Assassins Creed 2 and Fallout 3. It occasionally recovers with Mass Effect 2. Sometimes the last chunk of sound will repeat continuously. In Assassins Creed 2 I've completely lost my save twice and had to restart from the beginning of the game.

    More recently I've been re-playing the original Deus Ex games and it seems to happen in those too, though it always recovers

    Also Google Chrome seems to crash a lot and when I used to use a mobile broadband dongle plugged directly into my PC and Chrome crashed then it would be exactly the same as when it crashes in my games.

    There is no information in my event log except that "the previous shut down was unexpected" as I'd pressed the reset button.

    Any advice would be great!! Thanks!
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    Old 07-14-2010, 11:31 AM
    jon_hill987 jon_hill987 is offline
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    Post all of your spec. including PSU make and model (if you don't know it you will have to remove the side of the PC and read the label).

    Make sure all your graphics drivers are updated (though I doubt it is that, though it might be if you are using XP). My guess is a PSU or CPU/Mobo issue, RAM or GPU would be more likely to cause a blue screen.

    EDIT: Re-Reading, does it never happen without the 3G dongle plugged in? If that is the case do a search for a newer driver for that, though again, it should be causing a blue screen not a complete lock up.

    EDIT2: While you are having a look at the PSU take a gander at the tops of the capacitors on the motherboard as well. If they are leaking or expanded up then that is likely your problem.

    Last edited by jon_hill987; 07-14-2010 at 11:36 AM.
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    Old 07-14-2010, 11:37 AM
    Ravenger Ravenger is offline
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    Screen going black can be a symptom of an overheated or malfunctioning graphics card, but I doubt the original Deus Ex would cause overheating on a modern card.

    When your PC is off open your case and use an air duster to blow out any dust, especially from the graphic card fan and heat-sink. Make sure your card is seated properly in its slot.
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    Old 07-14-2010, 11:49 AM
    Lizard Lizard is offline
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    also check your processor heat sink and fan, especially the heat sink - those things fill up with diust pretty badly and it can be awkward to clean.
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    Old 07-14-2010, 11:57 AM
    wiggles wiggles is offline
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    It happens whether or not the dongle is in (I've actually got a router which the dongle plugs into to try and fix the issue) although it seems to happen less. When I was using the dongle and Chrome crashed the PC would freeze and become unresponsive, without it plugged in it just says "Whoa, Chrome has crashed, would you like to restart?".

    My spec from memory is XFX 780i mobo, 2 * BFG GeForce nVidia 285 1Gb (Sli) Cooler master 1kw PSU
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    Old 07-14-2010, 03:49 PM
    wiggles wiggles is offline
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    My spec is -

    Noctua NH-C12P Quiet CPU Cooler
    Intel Core 2 Quad Q9650 Quad Core CPU
    1000W CoolerMaster M1000 Real Power Power Supply
    CoolerMaster HAF 932
    8GB Corsair XMS2 DHX 800MHz DDR2
    BFG GeForce GTX 285 1024 OC2
    Windows 7 64 bit

    Last edited by wiggles; 07-14-2010 at 03:56 PM. Reason: Missed a bit off
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    Old 07-14-2010, 03:54 PM
    greenbeermonkey greenbeermonkey is offline
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    i'd check heatsinks and airflow, scanned for any malware?
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    Old 07-14-2010, 04:06 PM
    wiggles wiggles is offline
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    Would the temperatures explain the frequent Chrome crashing? I'd expect Chrome to be considerably easier on the system than Fallout 3 maxed out yet it will still happen as frequently.

    To be honest I haven't looked too hard for malware as I've been thinking it's more likely to be hardware; any removal tools you can suggest for Win 7?
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    Old 07-14-2010, 04:46 PM
    daviddanut daviddanut is offline
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    Pretty much any up to date anti-virus will do the trick, Avast is free and seems to be pretty good.

    Also, run prime95 to see if you can recreate the crash by putting your CPU under stress.

    [url]ftp://mersenne.org/gimps/p64v259.zip[/url] (I assume you're on 64bit)

    Also try stressing your RAM with it, though as someone else posted, RAM would more likely cause a BSOD.
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    Old 07-14-2010, 06:06 PM
    MacLeod MacLeod is offline
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    Try taking out one of your GPU's. Maybe one of them is faulty.

    Also, if you have anything overclocked, try backing it down to stock.
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