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  1. #1


    Member Since
    Aug 06, 2009
    Posts
    36
    Specs:
    13in 2.53GHz 4GB DDR3 RAM 250GB HDD and a turbocharger
    Question Is Snow Leopard running hot for you guys?
    I just upgraded to SL on my MBP and its running at 70C w/fans at 4000rpm using SMC. I bumped it up to 5000rpm and its at 68C. This is w/mail, firefox, and itunes running. I'm not running on battery either and its fully charged. anyone else notice this?

  2. #2

    CrimsonRequiem's Avatar
    Member Since
    Jul 24, 2008
    Posts
    6,004
    Specs:
    MBP 2.3 Ghz 4GB RAM 860 GB SSD, iMac 3.4 GHz Intel Core i7 32GB RAM, Fusion Drive 1TB
    Actually I'm running cooler. >_>" Usually when I have 50 tabs in firefox, safari, and itunes open it's running around 65. Now it's 60.

  3. #3

    mdfuller's Avatar
    Member Since
    Nov 01, 2007
    Location
    Sconie
    Posts
    1,217
    Specs:
    15-inch MacBook Pro
    About the same here. It was doing some work right after the upgrade, but it cooled of shortly after that...

  4. #4

    soulreaver99's Avatar
    Member Since
    Dec 15, 2004
    Posts
    98
    Snow Leopard is running cooler for me. Also, the new BootCamp drivers make Windows XP and Vista 64-bit run cooler as well.
    Macbook Pro 15" 2011 | Intel Core i7 2.2ghz Quad Core | 8GB RAM | 500GB HDD | Mac OS X (Snow Leopard)
    iPhone 4 32GB | iPad 2 16GB | MacBook Air 11" Ultimate
    visit the geeks office

  5. #5


    Member Since
    Aug 06, 2009
    Posts
    36
    Specs:
    13in 2.53GHz 4GB DDR3 RAM 250GB HDD and a turbocharger
    iAntiVirus was taking over the CPU so I disabled the enabled the app. idle at 56C now

  6. #6

    MYmacROX's Avatar
    Member Since
    Mar 17, 2009
    Posts
    3,625
    Specs:
    2008 15" MBP Yosemite, 2012 21.5" iMac Yosemite
    Also running cooler for me according to touch/feel. Haven't run diagnostics to confirm, but too late now cause I have no idea what temps were with Leopard anyways.

  7. #7


    Member Since
    May 19, 2009
    Location
    Charlotte, NC
    Posts
    152
    Specs:
    Mac Mini, i5, SSD & 1TB, 8 GB
    My MacBook is running hotter. I can feel it on the bottom side. But I still like SL. My MacBook is quicker, that may explain why it is running hotter.
    Mac Mini - 2.5 GHz i5 - 8 GB - 128 GB SSD & 1 TB HD - 2 Apple 23" LCD
    15.4" Unibody MBP - 2 MacBook Airs
    2 iPads, 3 iPhones, 3 iPods, 1 Apple TV

  8. #8

    CactusVideoGuy's Avatar
    Member Since
    Apr 29, 2009
    Location
    Arizona
    Posts
    46
    Specs:
    2008 15.4" Santa Rosa (C2D, 2.2GHz, 4GB RAM, 500GB HDD)
    I can't quite remember what my temps were running under Leopard, but since bumping to SL last Friday, I have only noticed one or two heat spikes, and those were when I was running intensive apps (FCE, Time Machine) and haven't noticed much else... right now iStat Pro is showing my temps as follows (not all, but two most important): CPU 47C, GPU 55C. Fans aren't spinning up right now - they're sitting around 2K rpm...

    Cheers!
    You can make some people happy some of the time, but you can never make a PC enthusiast understand the brilliance of the Macintosh OS. Until you put it in front of them.

  9. #9

    NMMI89's Avatar
    Member Since
    Jul 02, 2009
    Location
    San Diego, CA.
    Posts
    58
    Specs:
    MacBook Pro 15", 2.8Ghz, 4GB RAM, 500GB/ 60GB 5G iPod/ 160GB 6G iPod/ 8GB Nano/ 32GB 2nd Gen iTouch
    My MBP was running really hot after I installed SL. But now it's cooler. No worries.
    My mind is the weapon. Everything else is merely an accessory.

  10. #10


    Member Since
    Sep 02, 2009
    Posts
    2
    My Mac Book Air is hotter and is also freezing up the video playback. I could play all MKV files earlier. Now after 5 minutes they freeze. Very weird.

  11. #11


    Member Since
    Jul 24, 2009
    Posts
    2
    My 15" MacBook Pro is running hotter ever since I installed Snow Leopard. There's an area above the F3 and F4 keys that gets too hot to touch. I'm thinking that Snow Leopard is turning on some hardware components that don't need to be. Anyone have other ideas/suggestions?

  12. #12

    leopard-user1's Avatar
    Member Since
    Jan 27, 2009
    Location
    New York, NY
    Posts
    531
    Specs:
    17" MacBook Pro, 2.5 GHz Intel Core 2 Duo Processor, 2 GB 667 MHz DDR2 SDRAM, not unibody
    My MBP is actually cooler under SL than it was with Leopard.

    (from scienceteecher.com)
    17" MacBook Pro, OSX 10.6.2 Snow Leopard

  13. #13


    Member Since
    Apr 09, 2009
    Location
    Ithaca NY
    Posts
    2,073
    Specs:
    13 inch alMacBook 2GHz C2D 4G DDR3, 1.25GHz G4 eMac
    Yes... on average 4-10ºC warmer for me on my aluminum macbook 2GHz.

  14. #14


    Member Since
    Sep 13, 2009
    Posts
    1
    Hello Mac People,

    I noticed, like many of you, that a MacBook Pro is running pretty warm.
    Especially when running older apps, and the processor is working on avg 80 %,
    your Mac easily exceeds 70 C.
    Well, you can live with that, but I prefer to keep my Mac as cool as possible.
    I do not want my MacBook Pro to end up like many older IILC's, for those that remember this Mac, where many processors got thermal cracks.

    Very simple solution.
    Showing more then 70 C in your SMC Fan control, running on 5500 rpm.

    Just remove the Battery when running of the Power Supply ??!!!
    Yes..... thats all.

    The temp will drop due to better circulation, and disabling the charging circuit, to about 40 C

    I love it.

    Marc

  15. #15

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,483
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    Another little reason the temp drops, is that when you take out the battery and run on power only, the CPU is automatically throttled back. So you're also losing at least a quarter of your processing speed by doing so. Am not going to go look for them myself, but this was documented by several respected hardware sites a couple years ago.

    This is not a recommended practice.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

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