PC Turns off Suddenly

Discussion in 'Science, Technology & Car Chat' started by hongkongboy, Sep 11, 2009.

  1. hongkongboy

    hongkongboy Well-Known Member

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    First of all here my Spec now

    Intel Quad Core Q9550
    Asetek Water Cooling Kit
    4GB G.skill Ram
    Asus P5ND 750i Mobo
    500GB HDD
    9800GTX XFX GPU
    NZXT Case
    650PSU Hiper
    Windows7 RC

    Im not sure if this is a windows7 issue but when i was xp i did have this probelm once, but since i had windows7 the problem has occur more often, e.g it happen yestaday while i was reading news, and its just happen now when i was youtube. When i mean turn off itself, i dont mean its shut down as if its rebooting, it actually turns off like a powercut.

    ive check all my power cables all seems very secure.

    Could this be a windows7 problem or a power supply starting to fail?
    NOTE: I ve had this pc just over a year now and back then i did some heavy gaming in uni, could this damage the PSU
     
  2. kontradictions

    kontradictions Well-Known Member

    What are your temps like on that watercooling kit? Try cleaning the radiator out with a can of compressed air. I'm guessing it's an overheating issue.
     
  3. AznSerpent

    AznSerpent New Member

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    If its overheating, it would most likely BSOD or stall. The fact that power cuts out like that looks like a PSU problem. I would suggest buying a new one and replacing it. If it still has this problem you can always 'return' it :D.
     
  4. 小小

    小小 (゚ー゚)(。_。)(゚ー゚)(。_。) afk

  5. Rather that buying a new PSU it would be better to install XP on one of your HDD's or make a partition or something and run XP, if it doesn't turn off then you dont need a PSU or win7.

    I dont see how it can be a OS issue though, seems like a Hardware issue thats causing it to turn off in the WIn7 environment it seems. -noclue

    The PSU can only do its job, nothing more, nothing less so having your PC on wont damage it outside of normal wear and tear.
     
  6. kontradictions

    kontradictions Well-Known Member

    Are you sure?

    I've worked on a few computers and they would simply shut off cuz it overheats. Turns out the heatsink was clogged with dust.
     
  7. acejacker

    acejacker Member

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    sounds like a power supply problem to me because usually if the vent for the fan is filled with dust it wouldnt just stut off like the way u have it, it would go through the whole logging off account thing than stut off.
     
  8. kontradictions

    kontradictions Well-Known Member

    Wouldn't a power supply either 1) cause the machine to not boot at all or 2) cuts power under load?
     
  9. oh yeah you guys do that water cooling stuff . i just use normal fans .
     
  10. BestOffer

    BestOffer Well-Known Member

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    definitely a power (supply) issue with my experience in the computer industry; i have built over 500 PCs over the 6 years; intel can withstand temps up to 100 celsius no problems
    (my p4 back then during winavi conversion goes up to 78 celsius and still running on stock fans and no extra case fans)

    a power supply isn't expensive...get an Enlight (server brand) one as they are cheap and comes with 3 yr warranty; i have not experienced a failure from them yet....if is not the issue, you don't have to return it as keeping a 2nd as a backup is always useful...the sudden drop in the voltage in the psu will cuz a computer to shut down (and your power supply should come with a 3 yr warranty, RMA that as well while you use the 2nd psu)
     
  11. kontradictions

    kontradictions Well-Known Member

    http://ark.intel.com/Product.aspx?id=33924

     
  12. hongkongboy

    hongkongboy Well-Known Member

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    thanks for your reply, just to sum some thing up i dont think its an overheating issue cos the problem happen once when i turn on the pc had it running 5mins n turns off, so defo not a overheating issue,

    my cpu normally at 43C hot, when gaming and left on for ages it does go up to 60C

    im thinking of getting a new power supply anyway i fancy this be quiet brand looks cool n quiet the one im using now sounds like its gonna blow up when left 4 dead-ing XD
     
  13. BestOffer

    BestOffer Well-Known Member

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    no is not about that, even thou the temp is stated that; intel cpus in general can withstand 100 cel. (like my P4 630, it says the spec is 66.6 cel, i am always running at 82 Cel and no freezing or overheating issue with stock fan)...all intel products are under-rated to be on the safeside;
     
  14. kontradictions

    kontradictions Well-Known Member

    Running a computer at those temperatures terrifies me. I respectfully take my hat off to you for having the guts to run that hot.

    I have nothing against you or how you do things, but I prefer to keep things under what Intel suggests. (Y)

    Oh btw, having built 500 systems and keeping them running are two completely different things. ;)
     
  15. BestOffer

    BestOffer Well-Known Member

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    but the experience counts towards how safe intel systems are; i bet no here one would know that intel can run up to 100 C from building their own PCs;
     
  16. kontradictions

    kontradictions Well-Known Member

    True, but the experience doesn't account running a system at those temperatures over a period of time. You should know better than almost anyone else on here that heat doesn't kill a processor instantly. Over voltage might cause a system to drop dead but heat doesn't.

    I think you're probably right about that. I still think you're the only one with the guts to run that hot. (It's a compliment, if you're wondering)
     
  17. BestOffer

    BestOffer Well-Known Member

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    heat can burn/fry the processor and then the board, but intel is under-rated all the time =) you won't be able to run such temps for amd systems thou
     
  18. Phantoman

    Phantoman Well-Known Member

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    To go back on-topic, so you got your new PSU yet ? It solved the problem ?
     
  19. andrea0408

    andrea0408 Member

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    Yeah most of the time for this is over heating problems
     
  20. Phantoman

    Phantoman Well-Known Member

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    Looks like someone needed to increase his post count ...