Reboot Loop problem

Hello

I successfully installed OS X on my Fujitsu Siemens - running 10.5.6 now

A problem appeared when I decided to install OS X on my home pc.

My specs:

Intel Pentium 4 2,6GHz
512 Ram
NVIDIA GeForce FX 5600
ASRock motherboard P4i65G
2 hard drives (ATA)
40GB (system drive)
120gb (data)
(both no partitions)
+DVD

The Problem:

After inserting the install DVD Kalyway 10.5.2 and selecting boot device
Darwin prompt appears ( F8 etc, countdown)
After countdown is complete, DVD starts to boot, and pc restarts on line:

EFI enchaced b[restart here] - cant even see

I tried -legacy, tohkernel, cpus=1, -x -v -F -s, no results.

Same issue with Leo4Allv3final. Downloading v2 now.

Any ideas? Please help

Do you have HT Technology in the processor?

Yes, shall I turn it off?

Yeh try that and force the boot just in case ;P

Still wont boot. No difference. Any other ideas?

edit: noone?