[DM-MUG] Fwd: Re: [MacLaw] Macbook Pro Heat

[Victoria L. Herring]

from a discussion on MacLaw in April == [I bought MBP original and it 
was hot until I did the firmware change and gave it to my son....I 
now have the MBPCore2Duo and notice it is MUCH cooler]

I'm late to this thread, but Apple's been replacing early MacBook 
Pros that have had a tendency to over heat.  If that's a possibility,
you could take yours into the Apple Store genius bar at


Back on this subject, there's a firmware update (doesn't show up in 
Software Update for some reason) that some claim helps with heat 
problems.  I've applied it and can't tell if it does.

It's at:
http://www.apple.com/support/downloads/
macbookproearly2006firmwareupdate101.html


>
>Many, I repeat, Many are reporting complaints about the excessive heat
>of the MacBook Pros.  The hotest areas seem to be the strip directly
>above the function keys and the bottom of the laptop below the top of
>the keyboard.  I bought one of the 2.0s last week and have been rather
>concerned about the heat.  After doing some reading, I saw a
>suggestion to calibrate the battery to fix some of the heat issues.  I
>had noticed that the unit was much hotter when plugged into AC than
>when running on battery.  I decided to try the suggestion.  I followed
>the instructions on Apple's website.  http://tinyurl.com/jr2ku  The
>next morning, my Macbook was MuCh cooler.  I have since been rather
>pleased with the MacBook.


I haven't tried the battery trick yet, but I've tried resetting the 
PMU based on some Macintouch forum recommendations.  It feels 
subjectively cooler, but maybe I'm not hitting the CPU cores as hard 
since I've done it.

I should have thought to test the CPU heat with software before 
trying this, so I could report something more objective.  Anyway, to 
reset the PMU on the MBP:

1.  Shutdown.
2.  Unplug.
3.  Remove battery.
4.  Press and hold the power button for five seconds.

That's it.  The areas above the speaker grills aren't quite so hot 
now, though the strip above the function keys will still warm my 
fingers in the winter.

-- 
Victoria L. Herring, Attorney, Civil Rights, Discrimination & 
Employment Law, <http://www.HerringLaw.com>;  Travel research, 
planning & Photography site and blog, 
<http://www.JourneyZing.com/blog>;  Des Moines, Iowa, ph.515-255-4475.