My system specs
Processor:
Name : Intel Core2Quad Q9450
Code Name: Yorkfield
Family: 6
Ext Family: 6
Instructions: MMX,SSE,SSE2,SSE3,SSSE3,SSE4.1,EMT64T


Mainboard:
AsusTek Computer Inc
Model: P5N-D 1.xx
Chipset: Nvidia nforce 650i SLi SPP
Southbridge: Nvidia nforce 650i SLi MCP

Memory:
DDR2
Channels: Dual
Size: 4096MBytes

HDD:
1 SATA Seagate 500GB
1 SATA Western Digital 1TB

I hope this is the right forum.

I have managed to install iPC 10.5.6 Final ppf5
The only weird issue is that my ps/2 keyboard does not work even though I installed the keyboard fix during installation from the customize menu. USB mouse works perfectly.

ALSO
It only loads mac osx when I type -x -v -f
If I try only -v or only -x or any other combo, it hangs permanently at

:/root # ERROR: FireWire unable to determine security-mode; defaulting to full-secure

when i type -x -v -f at the boot: menu, everthing loads and then

configd[31]: InterfaceNamer : no network interfaces, could not update platform UUID

It hangs at this step for 10 mins and then starts up with the welcome screen to setup the mac for the first time. (create username etc.)
But I cannot fill the user details because of no keyboard.
I have vista installed in another drive and can boot to vista perfectly.
Is there some way to fix the keyboard error from vista.
I don't mind waiting 10 mins for mac to boot up, but am crippled without a keyboard.

try other distros like kalyway, iDeneb, etc
and: important: you need the right kexts for your board/ethernet/audio/...

good luck