is running at running 7000rpm(fan) and 80 celsius bad?

Discussion in 'MacBook' started by tongteh, Nov 11, 2008.

  1. tongteh macrumors 6502

    Joined:
    Aug 16, 2008
    #1
    is it bad to have my processor and fan running up so high???

    i have no idea why is it running so hot.. all i did was close my screen, and left it sleep with my battery charger and external HDD plug into it.. then when i am back to use it, i saw the cpu temp at 80 celsius, and fan at 7000..

    what happened if i didn't come back to use my macbook the whole night? would it cause damage to my hardware?

    Note: the picture is taken 1/2 minutes late..
     

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  2. JG271 macrumors 6502a

    JG271

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    UK
    #2
    Did it feel warm to the touch, or could you hear the fan blowing?
    Because it seems like the temperatures have dropped to normal in such a short time that it might just be confused readings when you started it up...

    Odd, i guess there was nothing blocking the vents?
     
  3. tongteh thread starter macrumors 6502

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    Aug 16, 2008
    #3
    nothing blocking the vents.. and it felt really hot when i first touch on it..
     
  4. mobilehavoc macrumors 6502

    mobilehavoc

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    Jun 30, 2007
    #4
    Yes there's something very wrong...my fan never goes above 2000rpm. Just because your CPU gets hot doesn't necessarily mean the fan has to kick in that much.

    Here's an iStat pro screenshot as an example...the laptop is cool to touch since everything is low except the CPU die - heat dissipates well on the Alu Macbook.

    Have yours checked out.
     

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  5. Jpoon macrumors 6502

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    Feb 26, 2008
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    Los Angeles
    #5
    Shouldn't get that hot unless you're watching a video or something. Even then, it shouldn't be getting that hot since it was sleepin'. You might want to make a Genius *even though I hate them* appointment to see if there's something wrong in there.
     
  6. Apple Ink macrumors 68000

    Apple Ink

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    Mar 7, 2008
    #6
    Seemingly... your external HDD prevented your Mac from going to sleep and it kept on running! What all apps did you left running before closing the lid? Safari or Mail one of them perhaps?
     
  7. Chase R macrumors 65816

    Chase R

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    #7
    Ya something isn't quit right there. Even while running my CPU at 100% for hours at a time (HandBrake) my CPU never gets above 83 and the fans usually hang around 4500 RPM. In just normal browsing and such use the CPU hangs around 43 - 45 and my fan never goes above 2000 RPM. I would take it to an Apple Store and let them take a look at it... seems awful hot.
     
  8. tongteh thread starter macrumors 6502

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    Aug 16, 2008
    #8
    everything was still open, safari, mail, and etc were open when i left it sleep.... i am guessing too that my External HDD may have played a part from making my Macbook getting so hot.. :mad:
     
  9. hogfaninga macrumors 65816

    hogfaninga

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    #9
    If your fan never goes above 2000rpm then you don't use your Macbook for anything except surfing the web or other low intensive things. Play a movie, a game, or anything that requires anything a little intensive and it will go above that easily. If you try to tell us you do anything remotely intensive and it doesn't go above 2000rpm then we know you are full of it.
     
  10. Apple Ink macrumors 68000

    Apple Ink

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    Mar 7, 2008
    #10
    Well that explains this! Mail.app is a killer and if you leave it running without any activity..... it'll suck up huge amounts of memory and CPU Cycles!
     
  11. Pressure macrumors 68040

    Pressure

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    Denmark
    #11
    I guess it never really went to sleep in the first place.

    Did the sleep light pulsate?
     
  12. tongteh thread starter macrumors 6502

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    Aug 16, 2008
    #12
    yea, it was on!!

    hmm, when you say that mail app takes lots of cpu, does it mean i should turn it off all the time?? i normally leaves my mail app on all the time.. :(
     
  13. morphalex macrumors member

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    Nov 6, 2008
    #13
    I'm assuming it has to do with your external hdd over working the USB and the apps increasing that temp. But 200 is extremely high and 7000 rpm? Wow! When I play dota for 2 hrs my CPU temp maxes out at 160 and fan speed at 3400rpm so yeaaaa
     
  14. mobilehavoc macrumors 6502

    mobilehavoc

    Joined:
    Jun 30, 2007
    #14
    Yeah I haven't played games on it but the fans rarely go higher than 2k RPM, maybe the ambient temp and the aluminum is cold enough it just dissipates the heat well. Who the hell knows?

    If you look at the screenshot I posted, my CPU temp is 82 Celcius but the fans are still 2k RPM...about 30 seconds later the temp dropped down to 62 WITHOUT the fans getting any faster.

    Technically since it's one block of aluminum, the laptop acts as a massive heatsink and the fans should rarely ever have to come on.
     
  15. tongteh thread starter macrumors 6502

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    Aug 16, 2008
    #15
    i was really shocked myself when i saw the 8000rpm and 80+celsius.. and when i try to take a screenshot of it, i couldn't recall the screenshot keys!! :( so it took me about 1 minutes to figure it out again..
     
  16. hogfaninga macrumors 65816

    hogfaninga

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    #16
    If you say so.
     
  17. mobilehavoc macrumors 6502

    mobilehavoc

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    #17
    I see you have a Black Macbook - trust me the Alu Macbooks are 10000x times better at dissipating heat than the plastic macbooks due to the construction and materials. If you know anything about CPU cooling you know with the right type of heatsink you can actually even have fanless desktops/laptops. So yes it is possible.
     
  18. Schtumple macrumors 601

    Schtumple

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    #18
    Haha yeah sure, that's obviously good for the system :rolleyes:

    OP: I never have my fans at 2000rpm, unless on the move, I always have them at 3500 atleast, get smc fan control, might help things a bit.
     
  19. mobilehavoc macrumors 6502

    mobilehavoc

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    Jun 30, 2007
    #19
    I'd just count it as a fluke and see if it ever happens again. If it doesn't I think you're fine
     
  20. mobilehavoc macrumors 6502

    mobilehavoc

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    Jun 30, 2007
    #20
    Wow, another person who has no clue what they're talking about.

    I'm perfectly happy with my completely silent Alu Macbook. Hope you enjoy yours with the fan noise.
     
  21. Schtumple macrumors 601

    Schtumple

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    #21
    Enjoy your lap/scrotum burner...
     
  22. mobilehavoc macrumors 6502

    mobilehavoc

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    Jun 30, 2007
    #22
    Wow did you even read my original post with a screenshot of iStatPro? As you can see the temps on the enclosure and in general are probably cooler than yours right now. Only the CPU is 82 Celcius and I know you like ripping open your laptop, taking off the heatsink and touching the CPU die with god knows what...but I don't so why should I care what the CPU die temp is?
     
  23. Apple Ink macrumors 68000

    Apple Ink

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    Mar 7, 2008
    #23
    I mean you should quit it before leaving your computer inactive (sleep or merely stepping away) for some time!

    If mail isnt so important you should preferably "launch-check mail-quit" every half/one/two... so on.. hour or so!
     
  24. Apple Ink macrumors 68000

    Apple Ink

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    Mar 7, 2008
    #24
    I mean you should quit it before leaving your computer inactive (sleep or merely stepping away) for some time!

    If mail isnt so important you should preferably "launch-check mail-quit" every half/one/two... so on.. hour or so!

    P.S.: Aluminum or not all MBs dissipate a lot of heat and exhaust not crossing 2000 is plain trolling! That said.. Montevina is way way way better with TDP (heat energy) than the pre 2.16GHz era! Anything before [and including] 2.16GHz will produce a lot more heat!

    Also, the Chipset coming in play by performing better graphical support sheds CPU load in turn generating less heat! (Though Nvidia chipsets have been known for their notorious heat generation... a character reflected by most mobo manufacturers adopting heatsinks for all nvidia chipsets)
     
  25. hogfaninga macrumors 65816

    hogfaninga

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    #25
    LOL OK 2000rpm at those temps.. Whatever. Your laptop won't last long.
     

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