Hi, Den 2016-08-18 kl. 21:52, skrev Marcel Maci: > > Hello Albin, > I started like you, drilling only a few holes at the beginning because, of > course, you don't want to do damage to your computer. But I think that the > more holes you make the better the airflow is (as you can see on the photos I > ended up with about 25 holes ...) > Don't understand why it got louder though (what kind of noise is it? > Vibration? Or do you hear the spinnig of the fan?)
The latter, especially when I lift the computer up in the air. > Other factors that have an influence are: > 1. Outlet for the air (towards the screen): make sure you clean any dust from > the "copper lamella" where the air passes through The outlet, and the machine in general, was very clean both before and after I drilled the holes. > 2. Some space underneath the MacBook so that the air can circulate (normally > with the standard "feet" you have just 1-2 mm which is good, you can improve > the result by putting something underneath the MB at the back) This seems to make no difference. If I start a few demanding applications such as Gnome Maps plus Hedgewars, then the computer quickly reaches 80 degrees and it makes no difference (other than in terms of fan noise) if I lift it up from the floor. If I don't use the machine much it's usually around 60--65 degrees, both now and before I made the eight holes. > If you install the sensors package you can monitor cpu temperature an fan > speed with: > watch -n 1 "sensors | grep Core" > watch -n 1 "sensors | grep RPM" I knew about the sensors package but this is the first time I see that command. Thanks! > Hope this helps and greetings, > Marcel I think I will drill a few more holes. Cheers Albin > > >> El 18 ago 2016, a las 20:04, Albin <[email protected]> escribió: >> >> 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> >> <mb21-fan-holes1.jpg> >
