Have iPC 10.5.6 Intel AMD SSE2 SSE3 iso

My Machine
* CPU = AMD Atholon 64 x2 Dual Core Processor 5600+
* SMBIOS Ver = 2.5
* Motherboard = MSI MS-7376
* Chipset = 790FX
* Memory = 4GB
* 3x 250GB sata
* 1x 320GB sata

What I´ve tried, disabled raid, changed the raid from ide to AHCI. Tried booting with -v. And always stoppes at "waiting for root device" somthing. I´ve been searching for some solutions but there is always somthing about sb600 kext driver, does that one work for the 790fx chipset ? Or is there some PPFs releases with this driver that I can download and patch the iso with ? What can I do ?

Please help ! Need OsX, hardware to expensive.