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    iso someone brave enough to test cooling ability of new Z11

    Discussion in 'VAIO / Sony' started by sniper_sung, Apr 20, 2010.

  1. sniper_sung

    sniper_sung Notebook Evangelist

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    There is no doubt that the new VPC-Z11 series is the new king of performance among all 13" laptops, while maintaining unprecedented mobility. However what would happen to the peak temperature under stress test?

    I hope someone who's possessing one of these powerful laptops and brave enough can help test it out.

    Please switch to speed mode using the nvidia graphics card, and run Prime95 (Torture Test: Blend Mode) and Furmark (Stress Test) concurrently.

    Please reply with screenshots including the following information:

    1) The CPU model, vcore, frequency, by CPU-Z or Everest CPUID;
    2) The load of CPU is 100%, from Windows task manager;
    3) The Prime95 Window;
    4) The Furmark Window, showing that the temperature curve has converged;
    5) The temperature curve of CPU from Everest Stability Test (without starting the stability test), or the readings from Real Temp;
    6) Proof of running Prime95 + Furmark for at least 10 minutes.

    Please also comment on the environment:
    1) The room temperature;
    2) Where the laptop is placed, e.g. wooden desktop, glass desktop, quilt, notebook cooler...
     
  2. ozbimmer

    ozbimmer Notebook Evangelist

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  3. NuShrike

    NuShrike Notebook Guru

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    Slightly related, I've had the Z11 turn on in my backpack with the vent facing down accidentally for a couple hours (turns out it was the wireless mouse's fault). Pulled out the laptop, battery was at 27%, and the metal surface of the keyboard was burning hot as well as the battery, however the rest of the the laptop was touchable, and the screen wasn't discoloring, and the whole thing recovered given a hour or so of charging and cooling down.
     
  4. sniper_sung

    sniper_sung Notebook Evangelist

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    Thank you so much for the test!

    I have seen one thing weird: it looks like the CPU is throttled as the frequency is only 1.6GHz. Can this be avoided by setting "VAIO Control Center -> Power Management -> Power Options -> Performance Mode", if such option exists for the new Z? I personally don't have a new Z so I can't know. :)
     
  5. Metsn

    Metsn Maiku Hama Yokohama

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    Furmark never worked well on my old Z. It never made my OCed GPU go over 90C, while I'm gaming I saw my temps go up to 104C.

    btw, as sniper_sung said, while testing you should choose Performance mode in Vaio Control Center and also in Power Options in Control Panel of W7.
     
  6. sniper_sung

    sniper_sung Notebook Evangelist

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    I think it's possibly because nVidia's driver can detect Furmark. Perhaps renaming furmark.exe still works?
     
  7. b_ambee

    b_ambee Notebook Geek

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    when i encode vdo with tmpgenc it uses all cpu core about 95% for 1 hrs My cpu temp is 90c and not go above this value
     
  8. Metsn

    Metsn Maiku Hama Yokohama

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    Don't understand well...Nvidia driver has to detect Furmark? I thought that Furmark should stress Nvidia GPU just as any game, but continuously.

    Anyway I recently changed thermal paste in my VGN-Z and it did quite some difference. Will probably write a small report about it later with some testing.
     
  9. sniper_sung

    sniper_sung Notebook Evangelist

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    It's been a while since nVidia and ATI are aware of the cards physically damaged by Furmark, so they detect Furmark in the drivers and throttle the performance to protect their cards. It is known that ATI has hardware protection against Furmark in the 5000 series. Not sure about the nVidia 300 Series.
     
  10. Metsn

    Metsn Maiku Hama Yokohama

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    Interesting. Anyway, I'm talking about my 9300, but I'll give renaming a try. But few hours of Fallout 3 is not bad to stress GPU as well :)
     
  11. sniper_sung

    sniper_sung Notebook Evangelist

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    Just bump to see if it is possible to have another nice guy to redo the test :)
     
  12. beaups

    beaups New Jack Hustler

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    I ran some tests with furmark and prime95 running at the same time. It's very important to note that due to the shared cooling of the Z...you need to stress both the CPU and the GPU at the same time as they affect each other's temps quite a bit.

    My gpu would get up to 85ish or so just running furmark. As for it detecting the program, the EVGA applet showed 100% gpu usage the whole time so I think it was working.

    However once I stressed cpu to 100% at the same time (i have i5) my gpu would bounce around from 92-93. I think my cpu never got out of the high 70's.

    I'll screw around with it again some more this weekend and post some results.
     
  13. sniper_sung

    sniper_sung Notebook Evangelist

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    Thanks for the help. These results are very handy! :)
     
  14. mfpreach

    mfpreach Notebook Evangelist

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    Thats really good.
    My apple would reach 99c just by watching flash video for 10 minutes.
     
  15. keisuke28

    keisuke28 Notebook Consultant

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    Not bad at all... considering the fact that the vaio z's chassis is so small and only has one cooling fan.
     
  16. ozbimmer

    ozbimmer Notebook Evangelist

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    I think the GPU uses the keyboard aluminium(?) frame for cooling.
     
  17. vavabavava

    vavabavava Notebook Consultant

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    on previous gen Z, it has a thermal pad right on the GPU's copper heat pipe, that helps heat dissipation to aluminum frame; it also helps add more pressure on the heat sink so that the gap is reduced.
     
  18. sniper_sung

    sniper_sung Notebook Evangelist

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    Note that the CPU is seriously throttled - a 1.6GHz CPU causes less than 10W thermal power, compared against the 35W specification.
     
  19. sniper_sung

    sniper_sung Notebook Evangelist

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    One user stress tested an i5 and the throttling did not occur (room temp = 20C):

    [​IMG]

    However there were 2 problems with his test:

    a) He only made 3 threads in prime95 to stress, instead of 4;

    b) He measured surface temperature rather than core temperatures.
     
  20. ozbimmer

    ozbimmer Notebook Evangelist

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    I might do the test again.
     
  21. ozbimmer

    ozbimmer Notebook Evangelist

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    You ask for it, and now you have it :)

    VPCZ117GG (i7-620m, GT 330m)
    Room temp: 24C. Notebook on a wooden desktop facing a fan :)
    Power Plan: High Performance, Thermal Control Strategy: Performance

    [​IMG]
     
  22. sniper_sung

    sniper_sung Notebook Evangelist

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    Wow thanks mate! That's really a great job showing the extreme temperature :) (Though CPU didn't get any Turbo Boost which is supposed to be 3.06GHz :()
     
  23. ozbimmer

    ozbimmer Notebook Evangelist

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    Oh yeah :) I was really worry during the whole 10 minutes.

    Unfortunately I cannot beat MBP new heat record :D
     
  24. sniper_sung

    sniper_sung Notebook Evangelist

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    Yeah I have to say the cooling ability of new VPC-Z is slightly better than the old VGN-Z, and of course, a lot better than the new MBP 100+C :)

    But such tests really hurt the lifespan of the laptop so you'd better let the baby take some rest :)
     
  25. ozbimmer

    ozbimmer Notebook Evangelist

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    I certainly will give it a good rest :)
     
  26. ratemodel

    ratemodel Notebook Enthusiast

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    laptop connected to ac sitting on a wooden table,
    room temperature 27.5C

    amazing machine,
    i could keep it on my lap during the test.

    it's the second time i try this kind of test (longer the first time).
    with high temp i've noticed that the battery does not wobble.
    i think the loose battery it's an engineering feature, not a bug.

    [​IMG]
     
  27. sniper_sung

    sniper_sung Notebook Evangelist

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    Thanks! This just confirms that i5 models can also throttle - TDP is 35W regardless of frequency.
     
  28. beaups

    beaups New Jack Hustler

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    Sniper

    What is this "throttling" you keep referring to? I don't see any evidence of throttling in either of these benchmarks.

    i5 Can't maintain turbo frequencies on both cores for too long in most cases. This is why it's called "turbo". Not maintaining peak turbo speed across all cores is hardly throttling.

    Show me a benchmark where it slowsdown below the rated 2.4ghz speed and I'll agree we have throttling.
     
  29. ratemodel

    ratemodel Notebook Enthusiast

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    i'm not sure i understand..
    i've never seen the cpu going below 2.4Ghz in the stress tests.

    i understand that turbo (in my case 2.66Ghz when both cores are active)
    is available when possible??

    edit: agree with beaups, seen his post too late.