FreeBSD 10 turn off by loading Boot-Kernel

[Dragan Stojkovic]

Hi Community

I've the issue that I'm not able to boot kernel (even start installation 
/ setup tools) on my PowerBook G4 (15"@1.6GHz).
After starting from CD the kernel starts loading after 5 seconds, than 
it just turns off the Computer.
All I can see is:
....
Consoles: Open Firmware console
FreeBSD/powerpc Open Firmware loader, Revision 0.1
(root at snap.freebsd.org, Fri Jan 17 11:44 22 UTC 2014)
Memory: 2097152KB
Booted from: /pci at f4000000/ata-6 at d/disk at 1

Loading /boot/defaults/loader.conf
/boot/kernel/kernel data=0x93e7fc+0x71260 syms=[0x4+0x80850+0x4+0xd864a]

Hit [Enter] to boot immediately, or any other key for command prompt.

OK
....
Once I enter boot and hit Enter i can see that the Kernel is loading and 
then it just turns off the Computer.

Has somebody experienced similar issue? And if so, how can I get FreeBSD 
installed?

Thanks
Regards