Discussion in 'MacBook' started by TheeMrTea, Sep 9, 2012.

  1. TheeMrTea macrumors newbie

    Sep 9, 2012
    I have a Macbook 7,1 Intel Core 2 Duo, 2.4 GHz processing speed.
    It has been overheating and the rubber on the bottom has warped and come away from the laptop. I'm going to get the rubber replaced, but I wondered if anyone knew how to stop this happening again?

    All suggestions will be much appreciated.


  2. 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:
  3. theRAMman macrumors regular

    May 6, 2012
    The Moon.
    check the fans, it is likely that you have a dust buildup.
  4. TheeMrTea thread starter macrumors newbie

    Sep 9, 2012

    I'll have a look at my fans. Still need to get the rubber replaced though.

    Thank you very much!
  5. killerrobot macrumors 68020


    Jun 7, 2007
  6. chibiterasu, Sep 10, 2012
    Last edited: Sep 10, 2012

    chibiterasu macrumors 6502


    Apr 5, 2012
    London, The United Kingdom
    Nope its nothing wrong with your MacBook internals, its not over heating, its not blocked fans. This happened to my mid 2010 MacBook and its due to the glue that holds the rubber bottom on to the aluminum base plate losing its adhesive due the natural the heating and cooling of the base. Apple has this as a know fault and has a replacement program see here http://www.apple.com/support/macbook-bottomcase/

    This will solve your problem because apple have changed the glue that holds the rubber to the metal plate and even if it does happen again just take it back in:)

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