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Snow Leopard - problems with portable lineup fans/heat

30341 Views 144 Replies Latest reply: Nov 22, 2009 10:33 AM by donstenk RSS
  • Kevin Leo-Smith Calculating status...
    I am having an Issue with my Macbook Pro since updating to SL. Fans run fast, and the system freezes solid after some time (hard to determine how long it takes as it has a habit of happening when I am not around) - fans still run fast but everything is frozen - have to hold down the power button to get it to restart. As a consequence time machine backups fail but the USB external drive I am using for TIme Machine is also not recognised and I can unplug and it makes no difference. Under leopard had a similar issue but it simply did not recognize the built in trackpad and keyboard but would work normally with a USB mouse and keyboard and sometimes closing the lid to initiate a sleep would make it reconnect to the keyboard and trackpad. However now it is a total freeze. Thought it may be the screen sleep but turning that off did not help. Basically at any time the computer can freeze this is a serous issue.
    MacBook Pro, Mac OS X (10.6), 2.6 GHz 4 GB RAM
  • SWOT Level 1 Level 1 (0 points)
    I also notice the temp tend to up whenever a USB device (Which may or may not require charging) and a DVI monitor is connected to the laptop...

    The left grille get hotter if the usb device charges through USB (like the ipod touch)
    Macbook Pro SR 2.2GHz, Mac OS X (10.6)
  • kookacoola Calculating status...
    I have the same issue with my macbook for some reason snow leopard actually runs a little hotter than leopard it self. and in many instances when even viewing like a careless not very powerful youtube video or having a youtube session and just going to clip to clip watching, the core temp of the machine shoots up way over 80 and the fan follows it. Like seriously i don't think this should be happening, but then again macs have had cooling issues for years.

    That spotlight fix worked great! it defiantly made my system cooler just by making spotlight stop.
    i wish apple would solve this heating/cooling issue it would make macs the perfect machines for anything it happen...
    Macbook late 2008, Mac OS X (10.6)
  • Solid Level 5 Level 5 (4,370 points)
    The Flash player plug-in for Safari is causing most of the heat/fan issues on my Macbook. Snow Leopard apparently doesn't play well with Flash yet. I suspect Apple will get this fixed quickly.
    iMac 24" 3.06, iMac G5, PB 15 FW800, MacBook, G4 Cube, Buncha iPods, Mac OS X (10.6)
  • onthemovefit Calculating status...
    Seeing the same problems on MB pro and MB Air with mds and java processes.
    Macbook Pro, Mac OS X (10.5.4)
  • klwzscale Level 2 Level 2 (215 points)
    AFFECTED: YES
    Macbook Pro late 2008
    15" 2.53 GHz
    4 gigs ram
    Upgraded install of SL

    Fan screams and heat get very very hot doing anything but surfing the internet. If java, mds, movies or photos are showing the fan run like crazy and the laptop gets very hot.

    Battery drains in about 1.5 hours max.
    Need to go downstairs and plug in now as I only have 12% remaining. I can almost watching it go down.

    Also Flash Crashed and said something along the lines that Safari did not like the Flash PlugIn.

    null
    MBP Late 2008, Mac OS X (10.6)
  • kaosdroid Calculating status...
    same problem.. i guess
    I noticed when ever running iTunes... didn't have too much time to figure out yet.
    but system freezes... I am checking now CPU usage and it doesn't seem suspicious...
    but when ever it freezes fans are running like ****..
    froze 3 times since install now.. I am scared
    It obviously had nothing to do with flash plugins what so ever... since i didn't even use safari
    at the time.. but i am having to external HDs via USB connected.. iTunes has it's library on one
    of them...
    MacbookPro 3,1, Mac OS X (10.6), 4GB RAM / IntelCore 2 duo 2,4 GHz
  • kaosdroid Level 1 Level 1 (0 points)
    two (2) external HDs =) not "to"

    you could guess
    MacbookPro 3,1, Mac OS X (10.6), 4GB RAM / IntelCore 2 duo 2,4 GHz
  • Majicman Level 1 Level 1 (55 points)
    I have a MacBook Pro 15" 2.4 GHz Late 2008 Unibody with 4GB of RAM, and I'm experiencing this as well.

    http://discussions.apple.com/thread.jspa?threadID=2132359&tstart=0

    Overall, my CPU temps are 5-10 degrees higher in Snow Leopard regardless of what I'm doing. If I'm rendering something and it used to be 60C, it's not 65C. Idling around 50-55 whereas with Leopard it was 45 or less.

    I wonder what's causing this. It can't simply be the slightly increased CPU usage in Snow Leopard, can it? Such a small increase couldn't possible be causing so much extra heat? Or could it? Hmmm.
    MacBook Pro (Late 2008, Unibody) 2.4 GHz, Mac OS X (10.6), 4 GB RAM
  • jstass Level 1 Level 1 (10 points)
    Hey Magic:

    I have the same set up as you. Mine seemed to be running warmer after the upgrade than it was before. AAPL above suggested resetting the PRAM. After doing this temps seem back in line with before the upgrade, maybe even a bit lower. You might want to give that a try.

    John
    2.4ghz MacBook Pro, Mac OS X (10.6)
  • Majicman Level 1 Level 1 (55 points)
    I tried that. Unfortunately, no go. Being a registered Apple technician, I was able to communicate this to someone inside of Apple. I'm going to run their CaptureData tool on some machines at work experiencing this, including my own, but if any of you are willing to run it as well, I put my e-mail in my bio page. Shoot me an e-mail. The guy from Apple told me that after they get the CD stuff, they can start looking into a possible software update or firmware update.
    MacBook Pro (Late 2008, Unibody) 2.4 GHz, Mac OS X (10.6), 4 GB RAM
  • G. L. Gray Level 1 Level 1 (55 points)
    The fans on my late 2008 Unibody MacBook Pro are running at a rather high speed (~4000 rpm) almost all the time since I installed Snow Leopard. This is with a CPU load that hovers around 8-15%.

    I just sent you an email message for the CaptureData tool. I would love to be able to help since the fans are making me crazy.
    2.8 GHz MacBook Pro (late 2008), 4GB RAM, Mac OS X (10.6), 32GB iPhone 3GS
  • Majicman Level 1 Level 1 (55 points)
    For you I would recommend trying to reset the SMC. That should fix the fans.
    http://support.apple.com/kb/HT1411

    Reset the PRAM, too. Reboot and hold down CmdOption+PR until it chimes twice.

    As soon as I get the e-mail with the tool though, I'll respond to yours. I'm sure it'd help them.
    MacBook Pro (Late 2008, Unibody) 2.4 GHz, Mac OS X (10.6), 4 GB RAM
  • Lawrence Hall Calculating status...
    AFFECTED: YES
    MODEL: MacBook White 2006
    CPU: 2 GHz Core Duo
    RAM: 2Gb
    DRIVE: 320Gb HD
    CLEAN INSTALL OR UPGRADE: UPGRADE


    Im not getting the problem with the same processes as the rest of you. I am getting a 90% + load from a process called fontworker. It happens every couple of hours. Laptop cooler and fans are on overload. Should i just downgrade to Leopard again?
    Macbook, Mac OS X (10.6)
  • dance2noise005 Calculating status...
    As mentioned earlier in a thread .. my 2007 Mac mini with Snow Leopard completely froze earlier this afternoon (like nothing I had seen before) after simply watching a Youtube video. Either it got completely out of hand with the heat or Flash messed it up or something but the system completely choked out and the audio was skipping like broken record.

    Had to manually power off.... after a reboot it's been fine so far, but I have no idea what the **** happened earlier!
    Mac Mini, Mac OS X (10.5.6)
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