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    Z Running Really Hot

    Discussion in 'VAIO / Sony' started by jfrankle, Sep 13, 2008.

  1. jfrankle

    jfrankle Notebook Enthusiast

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    I was trying a few things on my Z in order to see what it could do. I was also trying to undervolt my processor. Here's what happened:

    During undervolting, I ran orthos, and the processor was up and around 100 degrees Celsius in HWmonitor. That seemed really high to me, and I was wondering whether I might have a defective part.
    Edit: When trying to undervolt, rmclock wouldn't show my voltages. I was also wondering if there was anything I could do about that

    Secondly, I ran Age of Empires 3 on the 9300m. It ran smoothly at highest settings, but the GPU was also up and around 100 degrees Celsius. Especially with the Nvidia meltdown worries that have been going around recently, that really scared me.

    Edit: The processor idles at around 40 degrees. If I could undervolt, I'm sure that'd be lower, but sadly, I can't. The 9300m idles in the 60s, which scares me a lot.

    I'm wondering what you all think about these really high temps. It is scaring me a lot.

    Thanks
     
  2. TZ300

    TZ300 Notebook Evangelist

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    I share your concern, but cannot help you, since I have not bought Z yet. Question for you, did the fan speed increase as temperature rises? Can you feel the heat at the bottom and on the left side of the keyboard? Is it too warm to place it on your lap when it is running at full load?

    When I had the TZ (U7700 @ 1.3GHz), it was idling at around 60c on both cores, and CoreTemp said max TDP is 100c. So, you are at 100c and that is at maximum. May be you can call tech support and see what they have to say.
     
  3. jfrankle

    jfrankle Notebook Enthusiast

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    I have felt absolutely no heat on the keyboard itself. The cooling system for this laptop is wonderful because all the hot air is shot out the side instead of using the keyboard for a heatsink. The fan speed increases, but at a certain point it won't get any louder. It isn't any louder than a loud HDD or a CD at max speed
     
  4. boypogi

    boypogi Man Beast

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    your temps are really high
     
  5. dadoes

    dadoes Notebook Consultant

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    I think your idle cpu and gpu temps are normal. 100c cpu seems a bit on the high side though. I'm undervolting my Z and only letting it go up to 2.00 ghz (7.0x @ .95v) and the highest temp from orthos is about 70c on the cpu.
     
  6. phoebusvh

    phoebusvh Notebook Consultant

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    I'm no professional here, however, check your software first. Something is pretty weird here. If your software is 100% running well then something is not right. 100 c for a cpu is high. Everything else seems pretty normal.
     
  7. phoebusvh

    phoebusvh Notebook Consultant

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    BTW, if your laptop actually ran at 100c, I'm very pleased that the cooling system in Z managed to get the heat out without your feeling much of it. That's great!
     
  8. jfrankle

    jfrankle Notebook Enthusiast

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    I did manage to get it to undervolt and the processor isn't going above 70c on orthos. That GPU temp still worries me though. The last thing I want is for my beautiful new laptop to melt down or explode on me.

    Is there anything I can do about the GPU (undervolting somehow etc.)?
     
  9. ca911

    ca911 Notebook Enthusiast

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    how do you tell the temp of your CPU? I am new to pc's so I am just curious what my Z runs at!
     
  10. jfrankle

    jfrankle Notebook Enthusiast

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    I use hwmonitor
     
  11. D1330HI

    D1330HI Notebook Geek

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    I was using super to convert avi to wm4 - my cpu was at 100% for 1hr the highest temp was 85C fan was always blowing hot air, laptop remained cool to touch, only the air was HOT.

    2.53ghz 4gb Z590.
     
  12. true_freedom

    true_freedom Notebook Enthusiast

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    The temperatures you are experiencing are far too hot. 100 degrees celcius for the CPU is too excessive and will cause damage. For the CPU to reach 100 degrees celcius, your cooling system must be non-existant, i.e. nearly impossible. It could be that the temperature readings are wrong, maybe you should try some other monitoring software.

    This is problem is only compounded by the fact that the CPU's used by the Vaio Z series, are all the low voltage variants, (25W) i.e. they should run alot cooler than normal CPUs. If indeed your CPU reached 100 degrees celcius under load, I would get a replacement immediately.

    Same for the GPU, 100 degrees is way in excess of the normal operating temperatures under load. If your GPU runs at 100 degrees for prolonged periods, it is going to fail. Also, 60 degrees celcius when idle is too hot, if the readings are indeed correct, the cooling system is defective.
     
  13. miki69

    miki69 Notebook Evangelist

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    Did you try it on batteries? How hot it runs? If it runs on battery very hot then cooling system can be problem. Did you mess up with some fan speed software?

    BR
    Miki
     
  14. SPEEDwithJJ

    SPEEDwithJJ NBR Super Idiot

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    There is also the question of how many processes are running on the OP's laptop & are those processes hogging lots of CPU resources. That will also contribute to the higher CPU temp...
     
  15. jfrankle

    jfrankle Notebook Enthusiast

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    I cut down on as many processes as I safely could, I undervolted my processor significantly, and I've tried it both with and without battery
     
  16. miki69

    miki69 Notebook Evangelist

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    You can also use PC Wizard to monitor CPU, GPU, HDD temp.

    and? Did u resolve heat problem?

    BR
    Miki
     
  17. jfrankle

    jfrankle Notebook Enthusiast

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    The CPU heat problem is solved, but the GPU is still running insanely hot
     
  18. TZ300

    TZ300 Notebook Evangelist

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    How did you solve the CPU heat problem?
     
  19. jfrankle

    jfrankle Notebook Enthusiast

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    By undervolting it by almost 20%
     
  20. miki69

    miki69 Notebook Evangelist

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    Did you have this problem from the very beginning or later on?
     
  21. StrongerThanAll

    StrongerThanAll Notebook Deity

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    does undervolting cause the processor to decrease performance?
     
  22. miki69

    miki69 Notebook Evangelist

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    As far as I know, no it doesn't. I don't recall, but there was article about CPU voltage and that Intel is using (more or less) same voltage for all their processors in order to be on the "safe side" and not to bother with individual voltage settings. This is similar to home appliances (they work from 220v-240v), sometimes even lover (I have measured 208v), so by undervolting CPU some people can gain CPU running much cooler (8-10 deg C) without sacrificing performance/stability.

    BR
    Miki
     
  23. phoebusvh

    phoebusvh Notebook Consultant

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    No, when you undervolt a processor which will made it run slower --> sacrificing performance. Normally people undervolt laptop to make it run cooler and longer battery life. There are program out there you can try out. Many are very flexible, they will increase the voltage to normal when the task require and lower the voltage when the does is simple.
     
  24. dadoes

    dadoes Notebook Consultant

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    This is completely false. Undervolting does not make your cpu run slower. I think you are thinking about underclocking. That will make the cpu run slower.
     
  25. Phil

    Phil Retired

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    Dadoes is right. Undervolting does not make your system run slower. It does extent batterylife and make it cooler.