Fan running all the time

Discussion in 'OS X Mountain Lion (10.8)' started by Soundhound, Aug 26, 2012.

  1. Soundhound macrumors 6502a

    Mar 29, 2006
    I have a Macbook Pro 2.66 Ghz Intel Core Duo that I recently updated to Mountain Lion.

    It seems to work pretty well, but recently I noticed that something seems to be churning the processor, and the fan winds up running constantly, making it run very hot.

    I opened Activity Monitor, and found something called Report Crash running, taking up a high percentage (of the cpu I guess?) I quit that process over and over, but it keeps coming back.

    Anybody have any idea what this might be about? Thanks!
  2. rlsheffie macrumors newbie

    Dec 19, 2012
    APC Powerchute

    After 3 days of trying to solve the same problem on what may be the same machine after upgrading to Mountain Lion from Snow Leopard, I finally looked at the Activity Monitor as someone suggested and discovered that My APC Powerchute software was the culprit. Apparently it is not compatible with Mountain Lion. I pulled the connecting cord (which I don't think affects the surge protection) and the fan rpm dropped from 5000+ to about 2,500 almost instantly. The silence was deafening if not golden!

    I used the disk that came with Power Chute to uninstall the software.

    I have not checked to see if there is an upgrade to the software and was never sure why I had it anyway. I bought it for the battery and the surge protection. One site said it is unnecessary in more recent MacBooks, but I will worry about that later.

    Hope this helps.

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