Hi Tony,
to...@suse.de wrote: > Right now it's running 3.0 Linux kernel. It's overheating. It will > boot into X11 and remain up pretty much indefinitely if the load > average remains under 1.5. If I start Firefox I'll get a spike > (log warnings from Windfarm that the temp is "overtemp" followed by > it returning to normal). If I really load the machine (run a prime > factoring load test) i'll get a "critical" warning from Windfarm > followed by an immediate power off. partially perhaps unrelated, but I run 5.x series kernel on my iMac G5, which is of course not liquid cooled and single-CPU only, but I too get weird messages from the windfarm. Up to now I never got critical, but I get very frequent overtemp messages. I never did run MacOS on it, so i cannot compare. I got this machine with MorphOS which was running fans at full speed always, like a vacuum cleaner. What happens to me is that on boot up to promp, all is fine, no messages and I hear the fan spinning "very low", the computer is quiet and nice. Now I can get several scenarios 1) I do nothing serious, just use the shell or even leave it there. I can get an overtemp messages, which *usually* clears after a few seconds of fan at full speed(=vacuum cleaner). Sometimes not, the fan gets stuck high. 2) I do serious stuff, I compile stuff like ArcticFox which takes several hours. Here two there are several scenarios - Nothing happens for minutes, hours, fans stay low! - promptly an overtemp message comes, fan full speed.. and it may disappear and fan go normal after a few seconds and compilation continues - fans may remain stuck high and stay so even after compilation finished! Together with the fan burst, also the message of clocking down appears. Is there a way to monitor easily the CPU clock like with "apm" equivalent? so... I wonder if anybody with an air-cooled iMac with mac knows if there is any intermediate fan setting - I am used that PCs since many many years have variable fan speeds, same goes for many Suns, etc. I'm suspicious, if a burst of just fan and a second of clock down is enough... it is stupid thermal regulation. It could be even unreliable, that is shutting down too early, sicne sometimes it never does! I also fear that this way performance is suboptimal. Riccardo
