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Thread: PC crashing

  1. #1
    Voudoun's Avatar
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    PC crashing

    Out of nowhere my PC has started crashing. It black screens and requires a power off. It typically then won't restart and needs to be left for a while before it will be useable again. That made me think the CPU could be overheating but whilst BIOS cpu temperatures are in the 57 - 62c range, speedfan reports that the temperatures are in the 40c range and AMD overdrive reports that the temperatures need to rise another 40 - 50c before it overheats.

    I've tried reinstalling motherboard and gpu drivers using whql only. I've tried swapping ram sticks out and have done one pass of memtest with both sticks in. I've had the pc fail to boot with both ram sticks installed individually. The fact that the system boots at all rules out the boot drive failing. I've tried plugging the dvi cable into the apu rather than the gpu but no difference. I've got a spare (weak) cpu cooler that I can try to see if that makes a difference to reported temperatures. the BIOS reports good voltages on the 3.3, 5, and 12v lines (the 12v is reported as 11.9xx for example) so I doubt it's the PSU.

    it could be the motherboard I guess, but if so I'm surprised it's booting at all.

    Anyone got any ideas or suggestions? I could use some help because this one is mystifying me.

  2. #2
    Bumfaced Monkey Pirate D_Morals's Avatar
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    Re: PC crashing

    I think your initial hunch about CPU temps is correct; They seem a bit too high even though the CPU is usually throttled to full power when in the BIOS. It may be possible that your CPU needs to be re-seated. I would recommend getting some thermal paste to replace the stock paste that came on the CPU if you haven't already.

    Have you tried booting with the side panel removed and carefully touched the heat-sinks (while being grounded) on the various computer parts to check if any are particularly hot?

    What does the airflow look like? Are there many cables strewn about that could be restricting airflow to major components?

    A picture or 2 of the case insides might prove to be useful as well

  3. #3
    Voudoun's Avatar
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    • Computer Specs
      • Case: Corsair 250D
      • Motherboard: MSI A88XI AC
      • Processor: AMD A10 7850K
      • Memory: 8GB G.Skill DDR3 1600
      • Video Card # 1: AMD 6950 overclocked to 840 Mhz
      • Hard Drive # 1: Toshiba 128 GB SSD
      • Hard Drive # 2: Western Digital WD1002FAEX Caviar Black 1 TB
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      • Optical Drive # 1: Optiarc AD 7240S
      • Power Supply: EVGA Supernova 750 G2
      • Sound Card: Onboard Realtek
      • Monitor: Dell U2412M
      • Operating System: Windows 7 Home Premium 64 bit
      • Headset: Sennheiser PC151
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    Re: PC crashing

    Right now my hunch is that it's the GPU, so I've taken it out. To be fair it is a 'blower' cooler so it may not have been getting enough air in my Obsidian 250D. I'm going to try some gaming in a minute on the 7850K's integrated GPU because before even Baldur's Gate II was making my system crash. I'll see how that goes and if all is well then I'll probably have my answer. The GPU was radiating a lot of heat last night.

    Thanks for the suggestions though I'll bear them in mind. I'm already using Arctic Cooling MX3 (I think). Given that both speedfan and AMD Overdrive report that temperatures are ok I'm not sure I believe the BIOS CPU temperature. I don't have any significant disruption to air flow.

    Thanks for taking the time to help.

    Edit to add: I've had a run round and a little action in Mass Effect 3. It remained stable throughout though the CPU temp did peak at 62c according to speedfan. I was using integrated GPU of course which probably didn't help, but I'm thinking that the stock CPU cooler can't really keep up. I'll see if I can find a decent low profile cooler.
    Last edited by Voudoun; 06-09-2014 at 02:03 PM. Reason: Additional information.

  4. #4
    Voudoun's Avatar
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    • Computer Specs
      • Case: Corsair 250D
      • Motherboard: MSI A88XI AC
      • Processor: AMD A10 7850K
      • Memory: 8GB G.Skill DDR3 1600
      • Video Card # 1: AMD 6950 overclocked to 840 Mhz
      • Hard Drive # 1: Toshiba 128 GB SSD
      • Hard Drive # 2: Western Digital WD1002FAEX Caviar Black 1 TB
      • Hard Drive # 3: Samsung HD322GJ 320 GB
      • Optical Drive # 1: Optiarc AD 7240S
      • Power Supply: EVGA Supernova 750 G2
      • Sound Card: Onboard Realtek
      • Monitor: Dell U2412M
      • Operating System: Windows 7 Home Premium 64 bit
      • Headset: Sennheiser PC151
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    Re: PC crashing

    Ok, installed a Corsair H60 so I'll see how I get on. Haven't had a chance to game with it yet, but temperatures are looking better already.

  5. #5

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    Re: PC crashing

    I need 5 posts. I'm kinda cheating at this point. <3

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