MacBook Pro 13" Heat Issues!

Discussion in 'MacBook Pro' started by charlesb80, Sep 14, 2009.

  1. charlesb80 macrumors newbie

    Joined:
    Sep 14, 2009
    #1
    Hi all,

    I just purchased my first Mac computer and I was shocked to see the results of a stress test. I get a maximum temperature of 103C on the core diodes for my P7570 (apparently the OEM version of the P8400) before the fan starts to rev up (about 1-2 minutes). This effect is the same in both Windows 7 RC1 (64-bit) and Snow Leopard. Once the fans have started to reach ~4000 RPM the temperatures stabilize at ~90C. As the maximum diode temperature for the CPU is 105C I don't think this is a desired behavior. Ironically, even with such a high diode temperature, the notebook is not hot to touch and all other temperatures are fine (CPU temperature reaches a maximum of 84C). If I force the fan speed with smcFanControl this doesn't happen.

    Does anyone else have this issue with this system? I guess I need a system update to get the fan to respond quicker, but Apple will only do that if there is an issue for many people. If it is just me then I had better send the system back for replacement.

    Thanks for your help!
     
  2. Swiss Apple macrumors member

    Swiss Apple

    Joined:
    Jul 25, 2009
    Location:
    Switzerland
    #2
    My philosophy is "Don't worry about it", especially if you have Applecare. If the heat causes it to go pop within the next three years, Apple owe you a new Macbook, no "ifs" and no "buts". They designed the thing and surely they know what will last and what won't. For the record I have the same machine and am getting temps in the high 80's and even mid 90's, but I'm not concerned at all .
     
  3. morrisman1 macrumors 6502

    #3
    It makes no sense to have silence over cool running

    Download FanControl (its a preference pane) and modify your base fan speed to 1000rpm, then have it crank up at 50° and reach max at 70°. You will rarely see over 65 degrees with it like this and your fans will be silent till you go gaming or encoding.
     

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