random shutdown


  1. Jonesie85
    Posts : 92
    Windows 7 Home x64 & Windows XP Pro x86
       New #1

    random shutdown


    Hello, my name is Chris,
    I have recently updated my computer.

    Windows 7 Home Premium x64 (fully updated)
    Windows XP Profesional x86 (fully updated to SP3)
    Zalman 750 watt heat pipe modular (ZM750-HP) [3 YEARS OLD]
    Asus Crosshair IV Formula
    AMD Phenom II 1100T x6
    Corsair Vengeance 4x 4gb 1600mhz
    XFX Radeon HD6870
    2x WD 20EARS 2TB Sata drives
    1x sata HP 107d
    Netgear DG834PPN Wireless Router (Connected via LAN)
    (Firefox)

    With this setup i have played:-

    - Mass Effect 1 and 2
    - Civilization 5
    - Galactic Civilization 2
    - Crysis 2
    - Shogun 2
    - Call of Duty - Black ops

    all on full graphics. no problems

    However, i have recently come across a computer game called 'The Witcher - Enhanced Edition'.

    on Win7 it plays on full for about 60-90 mins. then the machine does an instant power down
    and wont turn back on at all until i switch the psu off then on. The psu itself runs hot,
    all temperatures are between 42-55 degrees (average temp). If it shutsdown then i switch it
    back on then instantly run the game it wont last more than 5 mins before it shuts off again.

    on WinXP the game runs but the system shutsdown before the game menu displays on screen. the
    psu is cold and the same psu off-on switch issue resolves this.

    i dont know much about psu energy ussage.

    usage in bios
    12v rail usage is at 12.8v
    5v rail usage is at 5.04
    3.3v rail usage is at 3.something (cant remember now)

    usage through CPUID Hardware monitor

    12v rail usage is at 11.83
    5v rail usage is at 5.04
    3.3v rail usage is at 1.93

    Does anybody know how to solve this issue?
      My Computer
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  3. Johnathan Lyman
    Posts : 966
    Windows 7 Ultimate 64-bit
       New #2

    You seem to know your stuff. Can we see your temps? (SpeedFan is a good tool to do so). Attach a screenshot of it if you can. If your PC is powering down instantly (as if it was unplugged), the machine is overheating.

    It wouldn't hurt to remove your heatsink, clean off the thermal paste from it and the processor and apply a fresh, pea-sized amount to it, and make sure you seat the sink snug and proper.

    HOWEVER, if you have to flip the PSU switch, the PSU itself might be burning up and failing. I would consider replacing it.
      My Computer
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  4. Jonesie85
    Posts : 92
    Windows 7 Home x64 & Windows XP Pro x86
    Thread Starter
       New #3

    heres the screen shot
      My Computer
    Quote Quote

  6. Johnathan Lyman
    Posts : 966
    Windows 7 Ultimate 64-bit
       New #4

    Jonesie85 said:
    heres the screen shot
    Sorry about getting back to you so late.

    Your temps are nowhere near dangerous levels. In fact I wish I ran that cool. LOL. Is this reading while under load or idle? If idle, can you put it under load and show us what you have?
      My Computer
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  7. Jonesie85
    Posts : 92
    Windows 7 Home x64 & Windows XP Pro x86
    Thread Starter
       New #5

    as it turns out i was running most of my components off the same 12v rail on the 750w PSU i was using. ive upgraded the PSU to 1000w (single 12v rail at 80amps) and now it works. thank you for your efforts it is appreciated.

    PS. the screenie was taken in idle.
      My Computer
    Quote Quote

 

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