PC is about to take off, fans are all at HIGH speed
 

Hi all

Managed yesterday to upgrade kernel to voodoo 9.5 (MacOSX 10.5.4 -see sig for rest of detail) and all is well, system boots up quickly (and shuts down quickly also). Sleep does not work yet and hibernate not tried at all.

One thing though: The CPU/Chipset/Case fans are all managed by an ITE chipset, which has a "nice" utility in m$window that allows you to specify temperatures for "off", "on" and "fullspeed". For my environment these have been tuned and usually are totally off or working on low speed.

However, when booting MacOSX (10.5.5), after lets say 2-3 minutes, all start and go on high speed which makes it very annoying. The chipset fan (worst case) goes to 7000 rpms!

Is there something to do about this? the mobo is DFI LanParty Ultra-D (nforce4)

Thanks

Have you tried to delete IntelCPUPowerManagement.kext and AppleCPUThermal.kext ? If not, do so - i have no idea how your FANs are controlled but it helps on many laptops to slow down the fan so it may help here aswell i guess...

by deleting you mean physically deleting ( e.g. rm -fr AppleCPUThermal.kext on correct folder ) and then rebooting with -f option ?


Thanks to confirm :-d

Yepp, just remove those two kexts, reboot, and boot with -f .

There was only AppleThermo.kext which I've removed. Still waiting.

Updated to 10.5.6 - more problems, starting a different thread

Thanks all for your help

Maybe check your Fans Bios Setting first, then checking whether fans still work in hi speed in windows system...