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Re: [Libreboot] MacBook 2,1: reduce CPU temperature
From: |
Albin |
Subject: |
Re: [Libreboot] MacBook 2,1: reduce CPU temperature |
Date: |
Thu, 18 Aug 2016 20:04:00 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.2.0 |
Hi Marcel,
I'm glad that this method worked out so well for you. I got inspired and
drilled a few holes in my own macbook2,1. As you can see from the
pictures below I made just eight holes in the shape of a ring.
Unfortunately, my results were not so good; there was no apparent
difference in temperature, but instead the computer just got a little
bit louder. I guess that more holes are needed...
Cheers,
Albin
Den 2016-08-18 kl. 12:16, skrev Marcel Maci:
>
>
> Hi all,
>
> Just in case somebody is interested in flashing Libreboot on a Macbook 2,1,
> I'd like to share my experience here:
> As you know, the MacBook gets quite hot (event hotter with Libreboot). You
> can adjust the fan settings (as described here:
> https://github.com/bibanon/Coreboot-ThinkPads/wiki/Macbook-2-1), but this is
> not a good solution. The basic problem with the MacBook is that it has no
> opening (air inlet) for the fan (it takes hot air from the inside which is
> not effective at all). On the Trisquel forum
> (https://github.com/bibanon/Coreboot-ThinkPads/wiki/Macbook-2-1) I read about
> a guy who cut a hole in the bottom part of the MacBook (just where the fan
> is). He reports that CPU temperatures can be 10-20 degrees lower. So I
> decided to apply this solution myself by thrilling a series of smaller holes
> (instead of one big hole) into the body of the MacBook. I can confirm that
> this lowers the CPU temperatures in a very efficient way:
> - before the modification cpu temperatures were always around 65-70 degrees
> even when I was working normally (i.e. without heavy cpu load) and the fan
> was constantly on and turning on full speed (6200 rpm)
> - now the temperatures are constantly around 55-65 degres and the fan only
> kicks in from time to time and doesn't get over 4500-5000 rpm normally (only
> with HD videos the fan spins at max speed and cpu temperatures get up to 75
> or eventually 80 degrees).
> I'm really happy with this solution. Make sure to be careful when drilling
> the holes (especially cleaning up the small metal pieces that the thrilling
> produces) and smoothenig the interior with sand paper. Do it from the inside
> and with the fan removed (see photos).
> Be sure to install a newer kernel (I'm using 4.2 - with 3.13 the touchpad was
> just UNUSABLE!), reconfigure the keyboard and you will get one of the best
> Libreboot-experiences in my opinion!
> Greetings,
> Marcel
>
mb21-fan-holes2.jpg
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mb21-fan-holes1.jpg
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