Re: iBook 800Mhz G3 fan on a lot
According to Rory Campbell-Lange, on Tue, 25 May 2004 13:50:06 +0100,
>My new G3 800Mhz has the fan on a lot (and seems pretty hot under my
>left hand). Is this normal? When I'm working late the noise is quite
>distracting in a quiet room
First, I would suggest using cpufreqd, for scaling down to 400MHz when
you don't need full power. I can send you a working config if needed.
cpudynd does not seem necessary.
Second, the fan control chip may be initialized with too low thresholds
(on my G3, they are too high).
I have a kernel patch to access it and I need testers to make it
included in the kernel :o). So if you mind... have a look at
and report !
It adds a module adm103x which gives you a way to set fan starting
temps, and to monitor real temperatures (about 50 Celcius in general).
>Debian testing kernel:
> Linux roz 2.6.6-powerpc #1 Thu May 13 19:43:40 CEST 2004 ppc
> processor : 0
> cpu : 750FX
> temperature : 11-13 C (uncalibrated)
> clock : 800MHz
> revision : 2.2 (pvr 7000 0202)
> bogomips : 1585.15
> machine : PowerBook4,3
> motherboard : PowerBook4,3 MacRISC2 MacRISC Power Macintosh
> detected as : 257 (iBook 2 rev. 2)
> pmac flags : 0000000b
> L2 cache : 512K unified
> memory : 640MB
> pmac-generation : NewWorld
> PMU driver version : 2
> PMU firmware version : 0c
> AC Power : 1
> Battery count : 1
> cat cpufreq
> minimum CPU frequency - maximum CPU frequency -
> CPU 0 400000 kHz ( 50 %) - 800000 kHz (100 %) -
>I am running apm and sleep and so on works well. If needs be, I don't
>mind dialling down the cpu speed if this is possible.
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