• just upgraded the memory in my mac pro (desktop) and now the fan whirls away like crazy. I've got the latest SMC firmware, and I've tried resetting it by unplugging, leaving for 15 seconds, plugging in, leaving fo 5 seconds and then restarting, but doesn't seem to do anything.

    if I put it to sleep, and then wake it, the fan winds itself into a frenzy before gradually calming down back to it's now normal growl..

    any suggestions on how to return it to normal?

    many thanks

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