Windows 10: 2nd CPU not showing on Task Manager / Resource Monitor

Discus and support 2nd CPU not showing on Task Manager / Resource Monitor in Windows 10 BSOD Crashes and Debugging to solve the problem; Hello.I'm new to this site and I hope I can get some help. I was running CyberLink PowerDirector 16 64-bit and noticed to much lag on a 4K video during... Discussion in 'Windows 10 BSOD Crashes and Debugging' started by HRibota, Aug 28, 2021.

  1. HRIBOTA
    HRibota Win User

    2nd CPU not showing on Task Manager / Resource Monitor


    Hello.I'm new to this site and I hope I can get some help. I was running CyberLink PowerDirector 16 64-bit and noticed to much lag on a 4K video during playback.I checked the Task Manager TM and I noticed that the CPU was running +95%. When looking at the detail I noticed that only one of the 2 of my CPU's is showing in the TM, all 6 cores working.I checked the Resource Monitor RM and it only shows CPU 0 to 5.I checked the Device Manager and all 12 cores are there. Intel Xeon E5645 @ 2.44GHz. 6 cores per CPUI checked the BIOS and the 2 CPUs are there too.Why can't I use bo

    :)
     
    HRibota, Aug 28, 2021
    #1
  2. WEIRDDAVE
    weirddave Win User

    CPU @ 100% in Task Manager.. but in error


    Sailindawg, did Resource Monitor show some silly high % use, in the millions/billions? Does the 'Details' tab in Task Manager show 'System Idle Process' normal? It does sound like you have the same issue, I've still not fixed it. You might be lucky and a BIOS update works for you as it has others, I'm stuck on the B2 stepping which means I can't upgrade the BIOS *Sad

    MrPumpkin, what process does task manager say is using the most CPU usage?
     
    weirddave, Aug 28, 2021
    #2
  3. BREE
    Bree Win User
    Task Manager shows single CPU

    Windows 7 used to show a CPU graph for each processor in Task Manager, but 10 by default shows just one graph for overall CPU utilisation. You can show separate CPU graphs in Task Manager if you wish, right-click on the graph and select Change graph to > Logical processors.
     
    Bree, Aug 28, 2021
    #3
  4. SIMONCBENNETT
    SimonCBennett Win User

    2nd CPU not showing on Task Manager / Resource Monitor

    Resource Monitor shows CPU busy but not in list of processes or services

    I have 64-bit Windows 10 Pro Creators Update, version 1703 running on an HP Envy with an i7 processor and 8Gb RAM.

    I have been having problems with Windows responding very slowly, but when I look in Task Manager, nothing seems to be using the CPU. However, when I look in Resource Monitor, the overall CPU graph is almost maxing out, and CPU 7 in particular is very active,
    typically appearing to reach 50%. However, when I sort the lists of processes and services, none of them are running on CPU 7. Is it possible for a virus to monopolise one or more cores and to exclude itself from reporting in Task Manager and Resource Monitor?


    2nd CPU not showing on Task Manager / Resource Monitor f05cdd47-0762-452d-80ac-6911588c4ee1.png
     
    SimonCBennett, Aug 28, 2021
    #4
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2nd CPU not showing on Task Manager / Resource Monitor

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