iMac TFT CPU Temperature sensor?

Gwailo

Gwailo

B.A. Economics (Hon)
I'd like to create a Carbon and a Darwin (i.e., GUI and remotely accessible) application for viewing my iMac G4's temperature.

What do I need for that? Are there Carbon APIs for the task or do I need to write my own hardware interface in like asselmber :)?

And hey if there's a GNU out there, I'm all ears!
 
Actually, I would also like something that would let me monitor how hot it's running. Preferably, something in the menu bar, like the volume control :p ;)
 
There's a program out there called "ThermoInDock," that will do just that for G4 processors... however, I've heard that the newer G4 processors have the temperature sensor disabled in them so programs like ThermoInDock won't work, and, on top of that, the temperature sensor on the G4s is supposedly extremely inaccurate to the tune of about 15-30 degrees.

My ThermoInDock reading hovers at about 104 to 111 degrees Farenheit. When I'm idling, it sits at 90 degrees Farenheit. I know the G4s are supposed to run hotter than the G3s, so I think that's probably an inaccurate reading.
 
I had ThermoInDock on my G3 iMac, but it won't work on my new TFT (my processor is probably not running at -1 centigrade :)

That's why I asked for access code to the sensor, thanks for the heads up on inaccuracy! Guess it's because the new ones have fans so it doesn't really matter...
 
If i'm not mistaken, the temperature sensor thingy in the G4s has been disconnected and is no longer functional... I think it was functional in the first and second generation G4 machines (The Yikes! like mine and the first AGP machines) and was diconnected in subsequent revisions of the processor.

All this I remember from articles/PDF/whitepapers/spec sheets from Motorola's site.
 
I'm running a cool app called AquaMon on my iMac G3 450. It has a temperature guage on it.

It's made by someone called "nibs" over at the ArsTechnica Forums. He could tell ya.

FYI: It's currently 36C if you care. Anyone know how to convert Celcius to Farenheit??
 
Yup, multiply by 0.7 then add 36 (Celsius to Fahrenheit).. Or maybe it's add 36 then multiply by 0.7... try it.
 
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