ahci not found

Hey guys I am not able to configure the BIOS of my motherboard The option to switch from SATA to AHCI or IDE does not appear in the PCH Storage Configuration session I try to follow the other settings, but every time I start the installer the screen turns black after verbose mode Please help...

Hellow, I'm thinking to install hackintosh on my dell optiplex 390 but when i see on bios setting, I can't find the AHCI sata setting on the bios. there is only ATA or Off... nothing else. And i got kernel panic when i try to install mac os x snow leopard using iboot. My system spec...