iMac 2011 a bit hot

Discussion in 'iMac' started by mattysouthall, Jul 23, 2012.

  1. mattysouthall macrumors member

    Joined:
    Jul 23, 2012
    #1
    Very hot day, no windows or aircon and my imac appears to be frying:

    [​IMG]

    what are the actual appropriate limits??? im sure the imac has warnings or something if it gets too hot?
     
  2. sainsburys macrumors regular

    Joined:
    Jun 12, 2012
    Location:
    Poland
    #2
    Yes it has, it will automatically shut down if the temperature will be to hot. By the way, modern CPU can handle 99 degrees temperature so don't panic :)
     
  3. mattysouthall thread starter macrumors member

    Joined:
    Jul 23, 2012
    #3
    oh good to hear haha
     
  4. jvmxtra macrumors 65816

    jvmxtra

    Joined:
    Sep 21, 2010
    #4
    You can afford imac.. why not buy at least a fan to blow towards imac to cool it down a bit? When I have huge investment like that, I would try to take good care of it.
     
  5. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #5
    The Intel processors used in Macs are designed to automatically shut down to prevent damage if they truly overheat. CPU Tjmax = 105C (221F), GPU Tjmax = 100C (212F) on i3, i5, i7 processors. (Source: Intel) If you're not already using it, iStat Pro will give you accurate readings of your temps and fan speeds, among other things.

    Unless there is a rare defect in a Mac, most temps are well within the normal operating range, considering the workload being put on it. Websites with Flash content, games and other multimedia apps will put higher demand on the CPU/GPU, generating more heat. This is normal. If you're constantly putting high demands on your system, such as gaming or other multimedia tasks, expect temps to rise and fans to spin up accordingly. It's just your Mac doing its job to maintain temps within the normal range.

    It is also quite normal for your Mac to become extremely hot to the touch during intensive operations. The aluminum body transfers heat more effectively than other materials used in computer casings, so you will feel the heat more. This doesn't indicate that it's overheating and will not harm the computer to be hot to the touch.

    Your fans are always on when your Mac is on, spinning at a minimum of 2000 rpm (for MBPs) or 1800 rpm (for MBAs, MBs and minis). iMacs have 3 fans with minimum speeds in the 800-1200 range. They will spin faster as needed to keep temps at a safe level. If they're spinning up without increased heat, try resetting the SMC. (PRAM/NVRAM has nothing to do with these issues, so resetting it will not help.)

    The intake and exhaust vents are in the back of the computer near the hinge on all Mac notebooks (except the new MBP with retina display, which has intake vents along the sides at the bottom). The iMac vent is a slot on the back near the top of the computer. Make sure the vents remain unblocked to allow your computer to perform at its best.

    Learn about the fans in your Mac
    Apple Portables: Operating temperature

    For Flash-related issues:
     
  6. iSayuSay macrumors 68030

    iSayuSay

    Joined:
    Feb 6, 2011
    #6
    iMac has been getting hotter since OSX 7. Especially the GPU (both heatsink and the core).

    If you can, compare it with SL and you'll notice the difference. It's much cooler.

    Solution: Ramp up the fan with smcfancontrol (OSX) or Lubbo's FanControl (Bootcamp Windows)
     
  7. theSeb macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #7
    You could do that, if you like to waste your time.

    ----------

    Do you have anything other than anecdotal evidence to back up these ridiculous claims?
     
  8. iSayuSay macrumors 68030

    iSayuSay

    Joined:
    Feb 6, 2011
    #8
    Personal experience. I made a thread about it some time a year ago. Some claimed to have experienced the same problem.

    Granted, it might not large enough to be called a valid evidence. But I'm not the only one either.
     
  9. theSeb macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #9
    My personal experience tells me that my 2009 MBP runs at the exact same temperatures before and after upgrading to Lion. I guess we'll have to call it a stalemate.
     

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