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    Problem with i7 CPU

    Discussion in 'Alienware M11x' started by Revoluxon, Mar 7, 2011.

  1. Revoluxon

    Revoluxon Notebook Geek

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    I turned on my m11x today and for some reason windows and all the CPU related programs are not detecting all the cores/threads of my CPU, I noticed it when I checked throttlestop and it was showing only 2 cores/threads (it was 4 before).

    msconfig only shows 2 cores aswell, dxdiag says it has 2 cores (it used to say it has 4 cores).

    How can I fix this? T_T
     
    Revoluxon, Mar 7, 2011
    #1
  2. kosti

    kosti Notebook Virtuoso

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    Well it does only have 2 cores. With hyper-threading, it has 4 virtual cores, but only 2 actual.
     
    kosti, Mar 7, 2011
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  3. djjosherie

    djjosherie Notebook Consultant

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    Did you turn off Hyperthreading in the BIOS?
     
    djjosherie, Mar 7, 2011
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  4. djjosherie

    djjosherie Notebook Consultant

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    This is true, but the computer still shows 4 cores for me everywhere the OP is stating it says 2.
     
    djjosherie, Mar 7, 2011
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  5. Revoluxon

    Revoluxon Notebook Geek

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    I know it has 2 cores and 2 threads, but some apps show them as cores.

    I checked the bios and there isn't any option about hyper-threading and I'm sure I haven't touched the bios for a while.
     
    Revoluxon, Mar 7, 2011
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  6. unclewebb

    unclewebb ThrottleStop Author

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    Go back into msconfig and make sure Boot - Advanced Options - Number of processors is not checked. It should find both cores and all 4 threads after you reboot. This is usually the cause of this problem.
     
    unclewebb, Mar 7, 2011
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  7. Revoluxon

    Revoluxon Notebook Geek

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    Obviously unclewebb is right, that fixed everything XD

    Thanks! :D
     
    Revoluxon, Mar 7, 2011
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  8. slickie88

    slickie88 Master of Puppets

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    How is this setting getting checked in the first place? We keep seeing reports of it here.
     
    slickie88, Mar 7, 2011
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  9. MasivB

    MasivB Guest

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    At first I thought applying this in msconfig made it utilize the 2 cores on startup while not setting it only used one. To my understanding this is incorrect as leaving it default already utilizes maximum cores and this feature is simply for setting less cores for startup (if you had to want that). So I may be to blame for suggesting it to a few people but I think I cleared it up by saying it has no effect and uncle did mention reports of this conflicting so I apologize. Glad its all dandy for you now anyway.
     
    MasivB, Mar 7, 2011
    #9