cMBP 2012 heat?

Discussion in 'MacBook Pro' started by andymac2210, Sep 17, 2012.

  1. andymac2210 macrumors regular

    Jul 18, 2011
    I've got a 2012 cMBP and when I'm watching videos (flash, twitchtv) and I'm cycling through iPhoto files by holding the arrow keys the computer hits 100*C.

    Is this normal temps for a MBP?
    It normally operates at between 50* and 60* C.

    I really thought I'd have been able to push this machine a lot harder without it hitting near it's max temps.
    My old 13" 2010 MBP would do the same stuff at about the same temps.
  2. Cassadian macrumors regular

    Sep 4, 2012
    You should try using an application called UltraFan. The fact is that the OS controlled fans try to minimize fan noise at the cost of higher than normal operating temperatures. Flash based applications utilize more of the processor and usually the dedicated GPU.
  3. andymac2210 thread starter macrumors regular

    Jul 18, 2011
    I don't really want to use hacks to kick up the fans.
  4. mykelala01 macrumors 6502


    May 17, 2009
    100 c is a little bit too much. What is your room temperature? Or even the outside temp? I am using my cMBP on a room temperature of a 90F. And the highest temp that register is around 75 C. Using Parallel watching flash. using Itunes, and I movie.
  5. GGJstudios macrumors Westmere


    May 16, 2008
    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 (free) or iStat Menus ($16) 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 your fans are 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:

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