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High CPU temp on new SR MBPs

13224 Views 54 Replies Latest reply: Jun 29, 2007 4:53 AM by tonkatuph RSS
  • UltraNEO* Level 2 Level 2 (180 points)
    Currently Being Moderated
    Jun 17, 2007 1:59 PM (in response to Dimme)
    People using PC platforms have spent loads and loads of money on specialised cooling modules and gadgets, just so they can over-clock their processors make their machines run faster a little faster!! But generally the faster you go, the hotter it'll get. When those chips get too hot, they'll self destruct. And if heat isn't a issue, they wouldn't have place specially designed heat pipes in your Mac and installed power consuming fans for cooing the units.

    Ideally, a processors should run at a lower temperatures because they're more efficient with energy requirements. Generally speaking a hotter processor will require more current, thus reducing the usage time of your battery - remember it's a laptop!

    So even if your chip can operate at 100°C, would you wanna place the boiling hot lump of metal on your lap and not complain it's burning you, or it's causing discomfort? I don't know about you, but it's supposed to be a "laptop" system - this tells me I can use it on my lap. Right?

    However, I personally don't need to place a scorching hot machine on my lap, especially if it's gonna exceed 60-70°C. Nor do i need a system with a fully charged battery giving me no more then two hours of usage.

    MacBook Pro (SR), Mac OS X (10.4.9), Glossy/2.2Ghz/4Gb/160Gb @ 7200rpm (hey!! still need more space!!)
  • PB PM Level 4 Level 4 (2,480 points)
    Currently Being Moderated
    Jun 17, 2007 11:16 PM (in response to UltraNEO*)
    Ideally, a processors should run at a lower
    temperatures because they're more efficient with
    energy requirements. Generally speaking a hotter
    processor will require more current, thus reducing
    the usage time of your battery - remember it's a
    laptop!

    So even if your chip can operate at 100°C, would you
    wanna place the boiling hot lump of metal on your lap
    and not complain it's burning you, or it's causing
    discomfort? I don't know about you, but it's supposed
    to be a "laptop" system - this tells me I can use it
    on my lap. Right?


    Its not safe to place notebooks (not laptops... I wish people could catch onto this fact) on your lap, this is old news, not sure why people still complain about this. They are notebooks/ desktop replacements, not laptops. Apple has not (nor many other notebook manufactures for that matter) called their portable units "laptops" in over 6 years.
    Macbook Pro, 2.16Ghz C2D, 160GB HD, 2GB RAM, Mac OS X (10.4.9), Power Mac G4 1.2Ghz, 120GB &80GB HD, 1.12GB RAM, 4GB iPod Nano
  • UltraNEO* Level 2 Level 2 (180 points)
    Currently Being Moderated
    Jun 17, 2007 11:45 PM (in response to PB PM)
    Forget I mention it's a bleeding laptop, it still shouldn't be running as hot as some people have suggested, period. Hot cpu's means it's not utilizing the power efficiently and/or there's inadequate cooling.
    MacBook Pro (SR), Mac OS X (10.4.9), Glossy/2.2Ghz/4Gb/160Gb @ 7200rpm (hey!! still need more space!!)
  • El Presidente Level 2 Level 2 (415 points)
    Currently Being Moderated
    Jun 18, 2007 5:10 AM (in response to bcbarnes)
    Could someone post a step by step guide on how to do the modding..i.e. how to scrape off the excess goop and reapply the paste properly?. Would be even better if you did a video of it and posted on youtube. That would be a star video...

    Also does this issue affect the non SR C2D MBPs?
  • Dimme Level 2 Level 2 (280 points)
    Currently Being Moderated
    Jun 18, 2007 5:22 AM (in response to El Presidente)
    I would not open my machine and assume that the thermal past is the problem. The processor is rated to 100c by intel. You are assuming the thermal past is a problem when it could be a new type of past and having more could be a good thing.
    G5 Dual Core 2.3, Mac OS X (10.4), Macbook Pro 2.4
  • horatius Level 1 Level 1 (30 points)
    Currently Being Moderated
    Jun 18, 2007 10:25 AM (in response to bcbarnes)
    Hi I've been thinking again about the thermal paste and the cpu temperature.
    It is hard to belive that the problem is the amount of the paste only.
    And I remember in a very old forums(monthes ago) Apple was noticed of this problem ,and didn't fix it?.
    Do you really think guys that is difficult for the manufacturer or( his robots)knowing the solution , to reduce the quantity of paste.???????? common is the easiest solution .
    MMMh I belive , the problem is a failure of design (not easy to solve) and technically not a worrying matter except for our laps.
    MBP W8615, Mac OS X (10.4.8), mac mini ,powerbook g4,ipod video 30gb,Macbook Black
  • nikhsub1 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jun 20, 2007 8:39 PM (in response to bcbarnes)
    Not quite 20c, I was a bit off when I posted that and have since revised that number. 9c at idle and 16c at load.
    MBP 17" Santa Rosa, Mac OS X (10.4.9)
  • John Willis1 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jun 20, 2007 9:04 PM (in response to UltraNEO*)
    That tape is Kapton tape. it is yellow because it is not scotch tape. That is heat rated tape that most Apple portables are filled with. I can guarantee you those sensors will be in position until you smash them with a hammer. That tape is awesome - I've used about 200 yards of it when working on Apple portables.

    The sensors are there for the ambient temp, so it matters that they are just "there" - not attached to a specific thing, but not floating around.

    Blaming unit's woe's on heat paste applications is a bit of a red herring. I imagine reapplying it in a non-manufactuing setting may help, but that's the way I've seen them apply it for years, across multiple computer manufacturers. all that matters is the thin layer sandwiched in the middle. the extra on the sides just sits there.

    I'd take a harder look at the the third party fan controllers than some errant bits of paste.




    iMac 20" C2D   Mac OS X (10.4.9)  
  • MKMKMK Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jun 21, 2007 7:06 AM (in response to bcbarnes)
    I have an Intel Core Duo MBP.

    I though that its normal that they get this hot (although very inconvenient) but it turns out as I suspected that its not supposed to be like this.

    My laptop never runs below 76C and reaches 89C and sometimes more. I use it for internet browsing and normal email word processing stuff and after a certain period I cant rest my hands on the rest pad and have to touch the keys very briefly and there is noway that I can touch the top bar just above the keyboard it literary burns my fingers - I tried it once and I got a burn.

    I am considering using my MPB as a egg cooker or a toaster.

    The fans always are running on 2.5k rpm

    I already had to replace a battery on it and this doesnt look good either.

    Apple is really letting down on build quality control and design of product if they are using tape to fix parts of a quite expensive laptop.

    This MBP is my first Apple so I am a new switcher and I have really been disappointed by the overheating issue. Since Apple is looking to increase market share they should be listening to people like me who are first time switchers.

    I wish I could write more about this but all 10 of my fingers are now burned and I am exhausted from the constant pain of burning sensations as I type.
    Power Book Pro 2007 Intel Core Duo, Mac OS X (10.4.9), MPB 07
  • Michael Flynn Level 4 Level 4 (3,490 points)
    Currently Being Moderated
    Jun 21, 2007 7:28 AM (in response to El Presidente)
    Could someone post a step by step guide on how to do the modding..i.e. how to scrape off the excess goop and reapply the paste properly?. Would be even better if you did a video of it and posted on youtube. That would be a star video...

    I don't thing the mods here would allow such a post to exist and this thread would be locked and/or the post deleted.

    By posting that information people may inadvertently damage their laptops. Apple seems very protective in who should perform surgery on their machines and at the very least continuing the warrant especially if something goes horribly wrong with the procedure.

    I've worked on laptops and desktops before and I can tell you there's so many ways for you to break a laptop if you're not careful. tiny wires, tiny screws that are easy to strip. tiny solder lines that can be nicked. tiny little connectors that are a pain to disconnect etc.
    Mac Pro MacBook G4 Cube, Mac OS X (10.4.7)
  • Dimme Level 2 Level 2 (280 points)
    Currently Being Moderated
    Jun 21, 2007 8:19 AM (in response to MKMKMK)
    If you think there is a problem take to a Apple store and let them have a look at it. Let us know how it works out.
    G5 Dual Core 2.3, Mac OS X (10.4), Macbook Pro 2.4
  • nikhsub1 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jun 21, 2007 8:27 AM (in response to MKMKMK)
    I have an Intel Core Duo MBP.

    I though that its normal that they get this hot
    (although very inconvenient) but it turns out as I
    suspected that its not supposed to be like this.

    My laptop never runs below 76C and reaches 89C and
    sometimes more. I use it for internet browsing and
    normal email word processing stuff and after a
    certain period I cant rest my hands on the rest pad
    and have to touch the keys very briefly and there is
    noway that I can touch the top bar just above the
    keyboard it literary burns my fingers - I tried it
    once and I got a burn.

    I am considering using my MPB as a egg cooker or a
    toaster.

    The fans always are running on 2.5k rpm

    I already had to replace a battery on it and this
    doesnt look good either.

    Apple is really letting down on build quality control
    and design of product if they are using tape to fix
    parts of a quite expensive laptop.

    This MBP is my first Apple so I am a new switcher and
    I have really been disappointed by the overheating
    issue. Since Apple is looking to increase market
    share they should be listening to people like me who
    are first time switchers.

    I wish I could write more about this but all 10 of my
    fingers are now burned and I am exhausted from the
    constant pain of burning sensations as I type.


    Umm, those temps are WAYYYY off base. Take it in ASAP.
    MBP 17" Santa Rosa, Mac OS X (10.4.9)

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