Boot the Install DVD with -v -x cpus=1 maxmem=2048 and see if you boot successfully into the Installer......
If/when in the "Customize" menu, select as follows:
iPC OSx86 10.5.6 Base System (installed by default with AppleDecrypt.kext and Disabler.kext)
Language Translations - Optional
iPC OSx86 10.5.6 Intel AMD SSE2 SSE3
Kernels - 9.5.0 Voodoo Kernel
Drivers - Video Drivers - None initially
Drivers - Chipset Drivers - AppleNForceATATest nForce Drivers
Drivers - Audio Drivers - ALC888
Drivers - Ethernet Drivers - Realtek R1000
Drivers - USB Drivers - Patched USB Drivers
Fixes and Patches - Seatbelt.kext 10.5.5 (must be installed if Voodoo 9.5.0 kernel is installed)
Fixes and Patches - AppleSMBIOS Patch - AppleSMBIOS-27 Rev3 Mac Pro
Applications - Optional but all selected except Marvin's AMD Utility
When all processes are killed and DVD drive activity stops and the re-boot "beep" sounds, remove the DVD and boot from the HDD by pressing F8 at boot-up to bring up the PC BIOS "Boot Menu", then selecting the HDD and pressing Enter.
On the HDD Darwin boot loader appearance, press F8 quickly and at the "boot:" prompt, type "cpus=1 maxmem=2048 -v -f" if you want to use "Do You Already Own a Mac" window to transfer your information across via options listed, or if not, simply type "-v -f" (without quotes) and wait as verbose booting takes place successfully into the Welcome screen video sequence......
Found the post, and i read it, but couldnt find download link thanks for helping