Originally Posted by
rsavage
Since the noise of the fan seems to be a problem for a lot of people I've looked into it a bit today. I've added some more to the FAQ about it. The safest thing is to probably reduce the fan starting speed. You can do this via the yaboot prompt. For example:
therm_adt746x.fan_speed=38
The default fan_speed is 64 so a value below this will make it start quieter and it will only get louder if the temperatue keeps climbing. If you want the fan to kick in at a higher temperature then use the limit_adjust parameter. For example:
therm_adt746x.limit_adjust=5
will start the fan at 55 degrees C (= 50 + 5).
OK, so I finally had the time to try this (sorry, I had almost forgotten about it...); and, thus, I did a:
Code:
gksudo gedit /etc/yaboot.conf
... and modified the two append sections with:
Code:
append="quiet splash therm_adt746x.fan_speed=38 therm_adt746x.limit_adjust=5"
... thus adding the fan adjustment entries; finally, I did a:
... and rebooted.
Well, now the iBook G4's fan indeed seems to activate later and is also quieter, which is especially noticeable when running from the mains (before, in that condition, it was quite loud from the beginning).
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