Windows 10: [Win10] PC restarting/shuts down - Event Viewer shows KP-41

  1.    05 Sep 2015 #1

    [Win10] PC restarting/shuts down - Event Viewer shows KP-41

    Hi there,

    Hoping you can help diagnose the kernel power event id 41 error I've been receiving. Upgraded to Win 10 on day 1 of launch 7/29 which the Event Viewer tells me was the date of my very first kernel power related crash.

    I've updated most of my drivers by now and while the crashes are now less frequent, still occurring about once a day - I'm guessing I've overlooked something...appreciate the help!
    Last edited by kpenn126; 06 Sep 2015 at 01:46.
      My ComputerSystem Spec

  2. essenbe's Avatar
    Posts : 11,358
    Windows 10 Pro and Windows 10 Pro Insider
       05 Sep 2015 #2

    kpenn126, welcome to the forums. You do not have any dump files which is what we use to debug a system. Please make sure your system is configured for small memory dumps .

    An Event ID 41 simply means the computer shut down unexpectedly. It gives no reason or clue really.

    Please right click on the start icon and select Command prompt administrator, give admin permissions and copy/paste this into the window that opens and press enter sfc /scannow . If you decide to type it in, please notice the space between the sfc and the /. We want it to say no integrity violations were found. If it says there where corrupt files that could not be repaired, please reboot and run it again. You may have to run it 3 times with reboots in between each time.

    Also, please keep an eye on your CPU and GPU temps. I would like to make sure it is not a temp program. What PSU, CPU Cooler and Hard Drives do you have. Please add those to your system specs in as much detail as possible. These are the instructions I usually give. Maybe they will help you.

    Please go to your last post and in the bottom left corner click 'My System Specs'. there is a link there to update your system specs, click it and fill them all out in as much detail as possible. Please list Manufacturer and Model, and list Desktop or Laptop. If it is an OEM, please list the Manufacturer and Model number. Please be sure to list your PSU and CPU cooler. If you would like to know what we would like, please click 'My System Specs' at the bottom left of this post and see mine.
      My ComputersSystem Spec

  3.    06 Sep 2015 #3

    Thanks for your help.

    I'll follow the mini dump setup guide and report back.

    I ran the sfc scan and no integrity violations were found.

    I will keep my eye on the temps for sure. I've done some of that already and everything seems fine - also tested the psu with HWMonitor both when the system was idle and put through load with Prime 95 and no jumps in voltage to indicate a bad psu.

    Lastly, I've updated My Specs to include the info you were asking for.
      My ComputerSystem Spec

  4.    06 Sep 2015 #4

    Hi again,

    So I updated my System settings to log a mini dump as per your instructions. According to the Event Viewer this morning, my system crashed (kernel power 41) while it was asleep and rebooted.

    When I ran the dm log tool, it said it could not find the mini dump files - any thoughts?
      My ComputerSystem Spec

  5. essenbe's Avatar
    Posts : 11,358
    Windows 10 Pro and Windows 10 Pro Insider
       06 Sep 2015 #5

    A dump file is only written if a BSOD occurred. A Kernel Power 41 simply means the computer restarted unexpectedly, which is not a BSOD. So, not unexpected. Please go into BIOS and tell me the values of the CPU temp, Motherboard Temp, the +12V, +5V and +3.3V. It seems that Windows 10 has some issues with sleep. We have seen a lot of errors with sleep.

    Also, this forum is for BSODs, which does not appear to be occurring. I may move this thread to another one of the forums here before too long.
      My ComputersSystem Spec

  6.    06 Sep 2015 #6

    CPU Temp: ~29 C (all cores) at idle (says max is about 45 C)
    Mobo Temp: has a few values: TZ00 = 28 C, TZ01: 30 C, TMPIN0 117C
    Mobo Voltage: +12V = 12.192 V; +5V = 5.040V; 3.3V = 3.3122V

    And while the last crash was in sleep, I've watched my system crash/reboot while I'm at it several times. The last few times it's booted twice in a row then totally shut down. What's weird was it took 30 seconds - 1 min before the system seemingly sprang to life (power/sleep button would not work during this time).

    What do you think?

    Edit: I should also note that when the crashes were more frequent, my automatic sleep, power, and screensaver timers would not work (worked fine in Win 8.1). I was able to fix this by unplugging my USB Native Instruments Audio Kontrol 1 audio interface.
      My ComputerSystem Spec

  7.    08 Sep 2015 #7

    Hi again,

    Any thoughts on next steps? Thanks again for your help!
      My ComputerSystem Spec


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