Ich habe für ein anderes Forum das ganze Problem mal auf English zusammen gefaßt:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hello guys,
I have my brand new Powerbook 12" since 2 days, everything fine sofar except the annoying FAN Noise Issue.
After I read through several Fora and webpages, without finding a solution for me, I would like to post my problem/question here:
My Config:
12" Powerbook G4 1.5ghz 1,25GB Ram 80GB HDD Superdrive MacOSX 10.4.5.
Temps read out with Temperox 1.0b3:
Idle Temps (just displaying the desktop - cpu usage between 5-15%):
CPU: 46°
Graphic Card (GPU): 51°
HDD: 45°
Battery: 32°
RoomTemp.: 21°
The Fanspeed is at 0rpm after startup, untill the CPU Temperature is under 50° it keeps OFF.
CPU Temp. 50° reached after 3-5min Surfing for example.
Fanspeed goes to 4600rpm`s.
If temperature still goes up above 60° the Fan speed goes to 8500rpm`s.
If temperature goes down, the fan does not switch off, even when the book is at 42°.
After Sleepmode, or Reboot the Fan is OFF again, and the same game starting over again. *gulp*
I have already tryed to replace the AppleADM103x.kext with an old version from MACOSX 10.2.8. Update as described in several foras, but without any kind of change !!!
I also tried the PRAM and NVRAM Reset with holding down Shift+Control+Option and the Power Button and then startup, without success.
The Problem seems to be, that Apple has changed the Temperature Threshold with 10.3 or 10.4 Updates.
In the Past it was 64° or 67°, than the FAN started with 4600rpms, now the value is at around 50° which is really to low !
Does anybody knows how to solve the problem?
Perhaps the threshold value could be changed somewhere ???
Many many thanks for reading and replying to this issue.
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Wäre schön wenn irgendjemand hier weiterhelfen könnte ... angeblich gibt es ja Powerbook User welche von Stille sprechen bis hoch zu 60° und mehr ....