this is a photoz of a panic:
http://img301.imageshack.us/g/kernpanic091203091458.jpg/I install leopard 10.5.8/kernel 9.5.0 voodoo1.0(iDeneb1.6) on my p4-630 precott, m/b asus p5gd2(915chip, ICH6) with onboard c-media 9880 sound.
I disable onboard devices (sound/network) in bios. First I install OS and fix'es and chipset drivers. all cool and work(except fireware which are not integrated). then I reboot and enable sound/network in bios. then I install only kexts for these devices voodooHDA(AppleAzalia don't work) and AppleYukon2(work), and kext for SpeedStepping support. I reboot and then a have kernel panic. As far as I understand it because of a sound. And read your txt about screenshot.