i was just reading Tech Tails #189 and saw this...
seems safe... and people over at the Apple boards say that it works, but i'm not too sure about this?
what do people here think? to me it seems very unsafe to be messing with system files like that...
How Hot Is That?
By Jon Spaulding
So, your PowerBook and iBook run a little warm. You've found that you can prepare Cup'o'noodle's, maybe even Ramen, on the area to the left of your Track-pad, or if you were to flip the machine, an area just short of the hinge to the right of center (when flipped). Well, this might just be the relief you need.
http://discussions.info.apple.com/WebX?128@249.7kYJaRiXjGf.0@.3bc109fc
It has been found, that the removal of a simple PMU (Power Management Unit) System file, that Apple portables seem to run a little cooler. So, how do you remove, and what file is it?
The file can be found by selecting Go in your menu bar, selecting Go to Folder, and typing in var/db/SystemPreference. That will bring you to the folder, but you will not be able to remove the file com.apple.PowerManagement.xml, simply because you do not have permission to do so.
Open up a session in Terminal. From Terminal, you will be able to remove the file by typing the following:
sudo rm /private/var/db/SystemConfiguration/com.apple.PowerManagement.xml
Hit enter. This will prompt your machine to ask for your ROOT password. Entering the password will then enable Super User do, sudo, to remove the folder.
Shut the machine down. While the machine is turned off, perform a PMU reset, Control, Option, Shift and Power. Wait five or more seconds, restart the machine. The PMU reset may force you to reset the time and date on your machine.
Secondarily, with a second mac and Tinker Tool, or other invisible/hidden folder apps, you could mount the drive of your portable via FireWire Target Disk mode, and remove the file without running into permission issues.
Or finally, Boot to single user mode and rename the file. To boot into single user mode, hold down the Apple key and 's' at Boot. From there, type the following commands:
/sbin/mount -uw /
cd /private/var/db/SystemConfiguration/
mv com.apple.PowerManagement.xml com.apple.PowerManagement.xml.backup
shutdown -h now
Before rebooting, the PMU reset is applied by holding down Control, Option, Shift and Power. Wait five or more seconds, restart the machine, and use. In this last part, we have not removed the file, but nearly renamed it.
seems safe... and people over at the Apple boards say that it works, but i'm not too sure about this?
what do people here think? to me it seems very unsafe to be messing with system files like that...