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About PotatoSalad

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    InsanelyMac Protégé

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  1. Update (May 13, 2007 09:24:21 EDT): I completely rewrote the driver in C and renamed it from IOI8KFan.kext to simply I8kfan.kext. It uses the BSD sysctl to communicate with other things because I'm lazy and this route was the easiest I could figure out. I also wrote a small app with the unoriginal name of I8kfanGUI. Using the application to monitor the CPU temperature, my Inspiron 5100 went from running at 60°C to hovering between 38°C to 43°C. Read more about the driver and the application here. Downloads: I8kfanGUI_v0.1.dmg (sources included) I8kfanGUI_v0.1-source.zip I8kfan_v1.0.0d1-source.zip Update (May 5, 2007 12:10:51 EDT): Using the code from the Linux 2.4.x and FreeBSD I8kfan drivers (listed below) I wrote a very rudimentary driver called IOI8KFan.kext because I couldn't think of a more original name. IOI8KFan.zip IOI8KFan_source.zip or IOI8KFan.kext: http://www.mediafire.com/?dymzzmtm2m1 IOI8KFan Source: http://www.mediafire.com/?0zkmzy2xy4z As of now, the kext simply spits out some information about the CPU temperature and fan settings (speed setting, fan RPM) and then kicks the fan temporarily into it's highest setting (fan speed 2). It only does this when loading the kext and it would be great if it was...uh...written better. My knowledge of writing IOKit drivers for Mac OS X is very limited and it would be greatly appreciated if someone with more experience would help me out with cleaning them up. === I have Mac OS X installed on my Dell Inspiron 5100, which is notorious for overheating. On Windows, I "solved" the problem by using I8kfanGUI to force the fan into overdrive when the computer begins to overheat. I need something similar for Mac OS X, but I have no idea where to start. There are numerous examples available for Dell fan drivers... Windows/DOS: http://www.diefer.de/i8kfan/i8kfan.html Linux 2.4.x: http://people.debian.org/~dz/i8k/ Linux 2.6.x: http://dellfand.dinglisch.net/ FreeBSD: http://www.angelfire.com/punk4/bofn1001/ If anyone has any experience on writing low-level drivers for Mac OS X, please lemme know.
  2. The article he gave you is for the 865G graphics chipset, not the Northbridge chipset by a similar name: i865. I have yet to find a solution for i865 and Quartz Extreme.