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Thread: Sudden Reboot

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    Sudden Reboot

    These last few months my Windows 10 Pro PC reboots, it just loses power then automatically starts up again. No BSOD. In the past month it has happened 10 times. Can happen when it has been on for a while or not long after startup, when watching twitch or writing an email in chrome. It started a few months ago around the time I installed new drivers for my Wacom tablet. So after a few crashes the first thing I did was uninstall the drivers. The crashes continued. Looked at the Windows Reliability and no consistent error messages happen before the "previous system shutdown was unexpected". Can't see any dump files being created and Who Crashed doesn't find any either. Temperatures for all components is low.

    Decided to do a fresh install of Windows 10 last week on a brand new SSD with just the basic programs I need. Thought all was well until last night when it crashed in exactly the same way.

    So I'm guessing it is more hardware related?

    Anything I should look at before I start changing more hardware, starting with a new PSU?

    System Details:

    CPU: AMD A8-5600k (not overclocked)
    MB: ASUS F2A55-M
    GPU: Using onboard graphics
    Memory: Corsair 4x4 GB DDR3 1600
    PSU: Corsair CX 430
    SSD: WD Green 120 GB (was Crucial 240 GB)
    HDD: 1 TB Samsung and 3 TB WD Green
    USB: External HDD(powered) + Mouse/Keyboard
    OS: Windows 10 Pro

    Thanks for any help.

  2. #2
    Senior Member spacein_vader's Avatar
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    Re: Sudden Reboot

    Quote Originally Posted by Tyrannosaur View Post
    These last few months my Windows 10 Pro PC reboots, it just loses power then automatically starts up again. No BSOD. In the past month it has happened 10 times. Can happen when it has been on for a while or not long after startup, when watching twitch or writing an email in chrome. It started a few months ago around the time I installed new drivers for my Wacom tablet. So after a few crashes the first thing I did was uninstall the drivers. The crashes continued. Looked at the Windows Reliability and no consistent error messages happen before the "previous system shutdown was unexpected". Can't see any dump files being created and Who Crashed doesn't find any either. Temperatures for all components is low.

    Decided to do a fresh install of Windows 10 last week on a brand new SSD with just the basic programs I need. Thought all was well until last night when it crashed in exactly the same way.

    So I'm guessing it is more hardware related?

    Anything I should look at before I start changing more hardware, starting with a new PSU?

    System Details:

    CPU: AMD A8-5600k (not overclocked)
    MB: ASUS F2A55-M
    GPU: Using onboard graphics
    Memory: Corsair 4x4 GB DDR3 1600
    PSU: Corsair CX 430
    SSD: WD Green 120 GB (was Crucial 240 GB)
    HDD: 1 TB Samsung and 3 TB WD Green
    USB: External HDD(powered) + Mouse/Keyboard
    OS: Windows 10 Pro

    Thanks for any help.
    My first guess would be PSU. Do you have a spare or someone that would lend you one for a bit to see if that solves it?

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    Tyrannosaur (10-04-2018)

  4. #3
    root Member DanceswithUnix's Avatar
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    Re: Sudden Reboot

    My first guess would also be PSU.

    Also worth running memtest86 overnight.

  5. Received thanks from:

    Tyrannosaur (10-04-2018)

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    Re: Sudden Reboot

    Thanks for the replies.

    I do have an old spare PSU that I can try. It's a bit loud though so will see how long I can stand it.

    But will run memtest86 overnight like DanceswithUnix suggests first.

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    Re: Sudden Reboot

    Ran memtest86 overnight and it did 3 passes with zero errors.

    Last night I did get another crash, this time with a Blue Screen: DPC_WATCHDOG_VIOLATION. But I think I'm going to put this down to the sudden reboots messing Windows up a little.

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    Re: Sudden Reboot

    Update:

    On the 17.04 changed the PSU to an old CoolerMaster 550W and last night 22.04 it once again lost power and reset. No BSOD or dump file created. One thing that did happen after this recent reset was the audio icon on the taskbar had an error saying The Audio Service Is Not Running. Although I could still get audio.

    Ran the AMD Overdrive Stability test for an hour today and nothing untoward happened.

    Jiggled the power switch/reset cables while the PC is running and nothing happened.

    According to CPUID HWMonitor Temps are:
    CPU: 35 °C
    Board: 31 °C
    Package: 61 °C

    So any advice on what I could try next?

  9. #7
    Senior Member Lanky123's Avatar
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    Re: Sudden Reboot

    I seem to recall the Spectre/Meltdown patches caused this kind of issue for some people. Pretty sure they then pushed improved patches but if this started around January sort of time then it might be related?
    If you have been affected by this program on nuclear weapons and would like to learn more, please press your red button now.

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    Re: Sudden Reboot

    i would clear the cmos, your mobo manual will tell you how to do it- it`s my go-to.

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    Re: Sudden Reboot

    OK reset CMOS last night. Will see how it goes.

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