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Abnormally high PCH temperature on P150EM?

Discussion in 'Sager and Clevo' started by gkrules, Jun 29, 2012.

  1. gkrules

    gkrules Notebook Consultant

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    I just started my laptop, and I've been using Chrome (nothing else) for around 30 minutes. My CPU core temps are in the mid to high 30s, which is awesome, and the CPU package is at 40 C. My SSD is at 30 C. However, for some reason the PCH temperature is at 64 C. Is this normal on these laptops?

    After shutting it down, waiting an hour, and then turning it back on, it was at 53 C. After 5 minutes of idle, it was back in the 60s.
     
  2. Josh@XoticPC

    Josh@XoticPC Company Representative

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    If you exceed 70 C. on your Platform Controller Hub reading, it may be cause for alarm. But, from what I have seen, it is normal to show PCH readings of around 60-75 C.

    For those curious what PCH is:
    Platform Controller Hub, it replaces the Intel Memory Controller Hub (aka northbridge) used in core 2 and older Intel CPU architectures. Some northbridge functions like the memory controller are now incorporated to the CPU. The PCH handles function typically managed by the southbridge and takes up the remaining northbridge function not handled by the CPU.
     
  3. gkrules

    gkrules Notebook Consultant

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    It only went up to 79 in 3DMark, so I should be fine. I was just surprised that is was so much higher than the other temps.
    Thanks for the quick response!
     
  4. Allport3

    Allport3 Notebook Guru

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    I'm actually having a similar problem where mine hits about 83c when playing diablo 3.
     
  5. TrantaLocked

    TrantaLocked Notebook Deity

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    Gkrules, he said to be alarmed if it goes past 70c, not to not be alarmed. 79 is way above 70.
     
  6. b0b1man

    b0b1man Notebook Deity

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    Diablo 3......Im getting tired of this game with all its problems.
    When people's laptops start frying one by one because of it, then blizzard will be in trouble.
    Ive never reached such high temps with ANY other game so far.
    Its the most ridiculous case ever - bad graphics, downright fuzzy textures like mashed potatoes, and it cranks your GPU to its boiling point!
    Ridiculous!

    One way to lower temps is to set "Shadows" to High instead of Smooth High.
    Or just set them to low.
    If this game ends up cooking my laptop to a crisp, that would be a good reason to never buy anything from blizzard again.
     
  7. sistergodiva

    sistergodiva Notebook Geek

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    Tip for Diablo 3, just as SC2 before it, it will render the menu graphics at as high fps as possible if you don't limit foreground frames. No reason to have that over your screens refresh rate anyways right?
     
  8. Occidio

    Occidio Newbie

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    HWInfo shows mine hangs betwen 75-80, dramatically higher than anything else in system when idle.
     
  9. Allport3

    Allport3 Notebook Guru

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  10. gkrules

    gkrules Notebook Consultant

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    I believe he meant doing those tasks or on idle. As the person above me posted, PCH temps can get pretty high when under a heavy load.
     
  11. terragady

    terragady Notebook Guru

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    Hey, i have got PCH temp 80 on idle and ~93 on load (not heavy), what is wrong????
     
  12. n=1

    n=1 does anyone actually read this?

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    If you feel adventurous enough, over at the TechInferno forums there's a thread on PCH cooling by adding a thermal pad of the right thickness such that it contacts the keyboard back plate, and effectively uses that as a huge heatsink. I thought about giving it a try but I was bit concerned about what a 70+ C hotspot on one area of the keyboard would do to its internal electronics.

    And for reference, the PCH in my P370SM averages 55 C when web browsing, goes up to 75 C when gaming, and tops out around 83 C when running Kombustor for 30 minutes.
     
  13. Meaker

    Meaker Company Representative

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    The pch will get hottest with lots of io activity (hdd, usb etc)
     
  14. webcrtor

    webcrtor Notebook Consultant

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    Mine is 71°C on idle.. never seen it lower..
     
  15. b0b1man

    b0b1man Notebook Deity

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    Mine is also a nuclear powerplant at idle. But it works, so...maybe its normal.
     
  16. terragady

    terragady Notebook Guru

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    Well, laptop has like one week only so I do not want to modify anything yet. For me its just weird that some of us reporting really high temps and some of us normal around 50-60. From what it depends? There are different types of PCH?
    High temp at PCH can increase temp at CPU or GPU?
     
  17. b0b1man

    b0b1man Notebook Deity

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    The only thing that can be problematic with high PCH temperatures is this: my second hard drive slot is right above it.
    And the PCH radiates so much heat, it made my hard drive go beyond 60'C (it was acting like a stove, heating up my harddrive that is mounted directly above it).
    The solution - I moved the HDD in the optical drive caddy. Problem solved, temps on the HDD are about 30'C on average.

    Basically Ive never heard of the PCH melting down due to high temps. But if you have hard drives located near it, you might want to move them to another slot.
    Hard drives need to stay cool, ideally around 30-35'C to live a long happy life.
     
  18. JMCD23

    JMCD23 Notebook Geek

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    Mine seems to be about 60C idle and 90C load. Must be normal.
     
  19. Meaker

    Meaker Company Representative

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    Yes the chip sets are usually made on an older more heat resistant process.
     
  20. Chaosstorm

    Chaosstorm Notebook Consultant

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    The issue with the p150em case is that you cant normally put a heat pad on the pch.. there is a piece of plastic casing blocking the access when you remove the keyboard..
    Whereas the p157sm does have good access, ive tried it on my p150em and could see the pch socket when peeking under the plastic.. but no way to properly shove a pad under it :(
    Mine is also 70-90 when gaming it can hit up to 92c. I don't like the feeling that a part is getting up to 90c and not being able to take care of it..
     

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