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Please help - PC keeps randomly rebooting :(

By elbubsio
Jul 5, 2005
  1. Hi all,

    My PC has been giving me problems for a while now ever since the PSU blew up and took the mobo with it a couple of months ago. Replaced them both and ever since the PC has crashed during many programs (especially mpeg encoding)and thrown up BSODs agogo.

    Just replaced the graphics card, mobo (again) and memory and done a clean install of xp pro and although those problems seem to have disappeared, now the PC will restart for seemingly no reason (no BSOD i can see, just restarts randomly). Since my most recent upgrades, games (GTA:SA and Far Cry) will freeze (no sound, graphics stop and no response from mouse or k/b) for a few seconds and then continue normally. They also sometimes just crash back to desktop or throw up a "critical exception" error box. Doom3 displays similar crashes often during level loading but doesn't seem to suffer from the freezing. As I say, the problems seem completely random. A friend came to visit me for a couple of days (1st-3rd) and we played games, watched films etc with not a single problem, then I've had loads in the last couple of days and today only a couple.

    I've tried changing the graphics drivers (tried 71.89, 76.45 and 77.72), tried a different HD, retried my old graphics card and moved the new memory to different slots and the problems persist.

    I've built a system for a friend using the same mobo, RAM and OS and he has no probs. Can someone please help me out with this problem as it's VERY annoying.

    Many thanks
    El Bubsio

    System specs -
    ASUS A7V8X-X mobo (replacing ASRock K7VT4A+) (VIA 4in1 4.56 drivers)
    Athlon XP 3000+ (barton)
    512MB RAM (new) and 2x256MB (old, not sure if damaged or not)
    160GB Seagate HD (new IDE cable and VIA IDE accelerator drivers installed)
    ASUS N6600GT TOP graphics card (drivers tried as above)
    Onboard SoundMAx Sound
    Conexant ADSL PCI modem (currently in PCI slot 6)
    NEC 3520A DVD writer
    JeanTech Phong case (2x120mm fans)
    520W Super Flower PSU (20a on 12v+ rail)
    Windows XP pro with SP1 and all updates)

    I can find error files in event viewer but which ones should i post here (there's a lot - about 50 in the last 3 days)
  2. ::.Zoltan.::

    ::.Zoltan.:: TS Rookie Posts: 27

    firstly, maybe you should think about posting in the right forum....but about your problem,i haveno idea what is wrong with it....maybe you just one of those people that shouldnt be around computers.....sorry i couldnt help you:)
  3. elbubsio

    elbubsio TS Rookie Topic Starter


    Firstly, just like you I don't know what's wrong (suspected gfx card due to game probs) so how can I know which is the right forum :stickout:

    Last night I left memtest running and it found 27 errors in 1 pass :eek:

    I guess it's time to RAM the RAM stick :(
  4. Tedster

    Tedster Techspot old timer..... Posts: 6,000   +15

    please only post in 1 forum. To answer your question, your P/S may seem to be ok, but the rectifier may have gone bad. Replace the power supply.
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