http://www.fahlstad.se/2005/10/15/mac-os-x-tiger-on-x86/
Running Tiger on an Intel machine is now possible, even to dual boot Win XP and Tiger. For you who are interested of trying this here follow a short tutorial.
NotesYou do this on your own risk.
Please do not attempt this if you feel uncertain.
And do not ask for support from me.
RequrimentsTo run Tiger on x86 you must have at least a SSE2 compatible processor.
Mac OS X Tiger image file. (It is illegal to download this file from bitorrent by searching for Âgtiger-x86.tar.bz2ÂÂ.)
dd for windows.
chain0
You need an additional hard drive for this, a single partition will not do.
InstallingUncompress the Tiger file.
Create a new partition of type Âg0xafÂh on the empty hard drive.
In command prompt type make sure to hit enter between every line:
DISKPART
DISKPART>Select disk (DISK NUMBER)
DISKPART> Delete partition
DISKPART> create partition primary id=af
DISKPART> Exit
Open command prompt and input this Âgdd if=(path)tiger-x86-flat.img of=\\.\PhysicalDriveX, where X is the number of you empty Hard disk. If you type the wrong number here it wipes your primary disk, so be careful. This takes from 15 min to several hours so be patient.
Copy chain0 to your root drive (C:\).
Add this line to boot.ini C:\chain0=ÂhMac OS XÂh
Reboot, you should now be able to dual boot XP and Tiger.
Tiger are now running very slow so using the Finder go to Âg/System/Library/Extensions/Âh and delete the file ÂgAppleTPMACPI.kextÂh in this folder. You may need to authenticate with your password (bovinity) to delete it. Reboot and your computer will spring to life.
http://www.360insider.net/forums/archive/index.php?f-14.html