still hangs @ booting with sata hdd

[Bing]

i've installed leopard on my pc (using my hdd as an external usb hard hisk). beside the drivers for nForce networking controller, and realtek hd audio, the other main problem remains to be the sata controller (nvidia mcp61) (or maybe because of sth else?).

it still hangs at "ioatacontroller device blocking bus" while booting into leopard with the hdd attached to pc through a sata cable.

but when i use my hdd as an external usb hard hisk and boot into leopard, the other sata hdd worked just perfectly fine!

So i'm wondering if the problem lies in darwinx86 rather than the mac os system? if so, what can i do with it?