Macbook didn't go to sleep

Discussion in 'MacBook Pro' started by Nuks, Mar 23, 2007.

  1. Nuks macrumors 6502a

    Feb 25, 2006
    I put my macbook to sleep this morning, and went to class as usual. However, 2 hours later I noticed my bookbag was extremely warm. I took my macbook out and it was so hot I could barely hold on to it. I opened the lid and nothing happened... so I restarted. When it booted up it was at 70+ degrees Celsius. The screen was hot, the keypad was hot, everything felt like it was on the verge of melting. I boosted the fans to max with SMC and let it cool down.. There doesn't seem to be much damage, not that I can notice anyway, but how can I prevent this from happening in the future? And has it happened to anyone else?
  2. dopey220 macrumors 6502


    Jul 19, 2006
    It happened to my MacBook a few times when I first got it. Make sure that when you close the lid to put it to sleep, the indicator light in the front is "pulsing" and not just "on." Also, try to have as few apps running as possible. To be honest, I'd just shut it down completely unless you're only going to be putting it away for a few minutes.
  3. nazmac21 macrumors 6502a


    Feb 25, 2007
    Digital World
    Do you have Allow Bluetooth devices to wake this computer turned on?
    If you have it on, turn it off when you leave to class. Sometimes bluetooth devices could awake the MacBook when it's sleeping when this option is turned on. Did you have any bluetooth devices nearby?
  4. ITASOR macrumors 601


    Mar 20, 2005
    Oneida, NY
    This happens to me sometimes too, only when I go to shut down. The screen goes black and I close the computer. It must not fully be off for a few seconds after it goes black, because it stops shutting down and freezes and then gets really hot in any enclosed bag.

    Now when I shut down I make sure to wait 10-20 seconds after the screen goes black before I closed the MacBook...then I open it back up again and press a key just to make sure it's actually off.

    The indicator doesn't help for me, because when it's on and frozen, it doesn't light up or pulse.
  5. McGarvels macrumors 6502


    Nov 10, 2006
    Irvine, CA
    This seems to be a common issue. A lot of us have had problems with this on our macbooks. I am going to the genius bar this weekend for this issue and a crack on my mb casing. I will update and let you know what the genius says. This has happened to me at least 10 times. I've tried everything. I didn't catch it the first two times and I swear my MB was about to explode into flames...not good. Anyways, I'll update once I get an answer.

  6. 2fives macrumors regular

    Nov 7, 2006
    Surrey BC
    Personally I would uninstall SMC or any other fan control management you have and just let the MAC decide what fan speeds to run. Also in a book bag with no ventilation what so ever I would fully shut down. Hek the macbooks boot up in under 30 seconds.
  7. Nuks thread starter macrumors 6502a

    Feb 25, 2006
    I didn't have a bluetooth device, but someone may have. I never thought of that, I'll make sure to turn off that feature.

  8. heehee macrumors 68020


    Jul 31, 2006
    Same country as Santa Claus
    What he said. Why do poeple have fan control management anyway? It's not like the laptop fan won't come on automatically when it gets to a certain point. :confused:
  9. jsalzer macrumors 6502a


    Jan 18, 2004
    Turning on when off

    Count me in as someone who turns the laptop completely off (screen goes black and all), closes it, puts it in the bag, drives home, and finds the computer on and very hot - but with the screen not coming back until a forced reboot. It's happened to me 4 times now.

    Why do people use fan management? Well, on my first gen 15" MBP, the thing would get so hot I was literally putting cooling pads (from the freezer) under it just to keep it from being so uncomfortable to use. I could have cooked an egg near the escape key. Between ramping up the lowest fan speed and reapplying the thermal paste, I don't have to do that any more.

  10. QCassidy352 macrumors G3


    Mar 20, 2003
    Bay Area
    it happens to me every once in a while. I do have both "allow BT devices to wake this computer" turned on and SMC fan control installed, but this has happened to me in the absence of both of those things as well. Even if a BT device woke it up, it should go back to sleep as long as the lid is closed (and it's not connected to an external monitor).

    It's scary and I don't know why it happens. Now I just make sure the sleep light is pulsing before I put it in my bag.
  11. -::ubermann::- macrumors regular

    Sep 9, 2006
    it has happened to me like 4 times since i bought my macbook on september, i just closed it and it didnt sleep, it became so hot

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