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    GPU diode at -127 C?

    Discussion in 'Apple and Mac OS X' started by tenderidol, Sep 2, 2009.

  1. tenderidol

    tenderidol Notebook Evangelist

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    I am using iStat Menus to display temperatures of different components. One thing that caught my eye today is that the GPU diode temp is being reported as -127 C. I am glad my 15" MBP runs really cool, but that's a bit too much, dont you think? :D

    I assume this is just the software reading it wrong. Do you guys have the same thing on your MBPs?

    Thanks.
     
    tenderidol, Sep 2, 2009
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  2. munchkin-man

    munchkin-man Notebook Consultant

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    HAHAHAHAHAHHAHAHAHAHAHAHAHA Some program rofl def not right.
     
    munchkin-man, Sep 2, 2009
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  3. tenderidol

    tenderidol Notebook Evangelist

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    Switching between graphic modes (i.e., different GPUs) makes that reading disappear. In "better battery life", the GPU diode -127 appears. If I select "higher performance", then the correct GPU diode reading is displayed after log out/log in. Going back to "better battery lie", the GPU diode reading is not there any more. I guess iStat is trying to read something which is not there when in one mode vs. the other and reports it as a negative value?
     
    tenderidol, Sep 2, 2009
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  4. Luke1708

    Luke1708 Notebook Virtuoso NBR Reviewer

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    try reinstalling the program.
     
    Luke1708, Sep 3, 2009
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  5. D3X

    D3X the robo know it all

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    That is exactly it. Having used PCs for years, I often saw -127C with MBM or Speedfan when you incorrectly set up the temps reading from the wrong device.

    Having a -127 just means that the monitoring program isn't getting a correct reading from that diode. I would suggest updating the IStat. Personally I haven't had a temp reading issue with IStat on my machine, but I have the older late 2008 model...
     
    D3X, Sep 3, 2009
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  6. owais

    owais Notebook Deity

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    happening when you put your laptop to sleep and then turn it on again, try restarting your laptop fully.
     
    owais, Sep 3, 2009
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