Windows 10: System Interrupts 100% CPU 0

Discus and support System Interrupts 100% CPU 0 in Windows 10 Drivers and Hardware to solve the problem; Hi. I have a an i7-6700 - Lenovo AIO 700 27ISH CPU 0 is always 100% with System Interrupts. 15% CPU overall. Fan runs high. CPU constant overclock... Discussion in 'Windows 10 Drivers and Hardware' started by Jamie.Andrews, Aug 4, 2020.

  1. System Interrupts 100% CPU 0


    Hi.

    I have a an i7-6700 - Lenovo AIO 700 27ISH

    CPU 0 is always 100% with System Interrupts. 15% CPU overall. Fan runs high. CPU constant overclock to 3.97 from base 3.41

    ACPI.sys appears to be what is using the CPU under System Interrupts.

    Complete fresh install of Windows 10 1909.

    Nothing else open.

    Tried updating all drivers and applying OEM drivers.

    Safe Mode is the same.

    Disabled every device I could but no change.

    Disabled power saving on any device I could.

    Disable wake on magic packet for LAN and Wi-Fi.


    I'm thinking that it must be an actual hardware fault as it occurs even in Safe Mode and that I can't think of anything else to try. If it is a hardware fault, is there some way I can pin down what the hardware fault is?

    :)
     
    Jamie.Andrews, Aug 4, 2020
    #1

  2. Windows 10 System Interrupts 100% CPU Usage

    After updating my graphics driver on my Lenovo computer, it started freezing after 1 to 2 minutes after booting. I was able to find out system interrupts is taking up 100% of the CPU.
     
    RaidonBrooks, Aug 4, 2020
    #2
  3. Windows 10 2004 issue with system interrupts at 100 percent cpu

    Since installing Window 10 release 2004, I constantly have to reboot desktop PC after system interrupt begins running at 100 percent cpu. Desktop is HP p6-2220t processor Intel Pentium G640 2.80Ghz, 8 GB ram, 64-bit os. Had no problems at all running
    build 1909. Any suggestions would help.
     
    CharlesMaranto Jr, Aug 4, 2020
    #3
  4. System Interrupts 100% CPU 0

    100% CPU usage while on AC power - System Interrupts problem

    I have been having the same issue that others have been experiencing
    here
    , here, and here.
    When you search for this you see
    many results
    .

    My symptoms:

    - On battery power, computer behaves "normally".

    - Immediately after plugging AC charger in, Task manager reports 100% CPU usage and never drops from that. The fan on my laptop runs constantly because of this.

    The culprits in the Task Manager appear to be "System", "System Interrupts" and "Desktop Window Manager". See this screenshot:


    System Interrupts 100% CPU 0 3d03b8fd-2418-4669-8822-86ecb59ca766?upload=true.png


    The CPU usage of these three tasks jumps up and down between 30% and 0%, but the total CPU usage is always reported as 100%.

    Steps I have taken:

    1. Restart in safe mode (same issue)

    2. The steps outlined in this post

    3. Restart many other times.

    4. Remove peripheral hardware.

    I ran performance monitoring as outlined in this post. I can link the results from a shared OneDrive folder
    if that would be helpful.

    Here is a screenshot from that:


    System Interrupts 100% CPU 0 ba0d1746-7e05-498d-a79a-3161014919ea?upload=true.png


    Where my mouse is (around 6 seconds in) is when I plugged in my laptop. There is a small spike in System (4) processes, but those go back down. When looking at task manager during this time, CPU usage is at 100%, but this performance trace does not report
    the same thing as seen here:


    System Interrupts 100% CPU 0 58d994e8-e8f1-4ee7-b0e7-828212f269b6?upload=true.png


    Any help would be appreciated!!

    I am running Windows 10 Version 1903 (OS Build 18362.592)

    Dell XPS 15 9570 (Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz[Cores 6] [Logical/Core 2])
     
    PeterBoone1, Aug 4, 2020
    #4
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