I have a Samsung 120GB hard disk but he is not recognized bij my BIOS.

My BIOS:
Asus Award modular BIOS v4.51pg
i440BX -<<P2B>>
i can't find a upgrade for a award BIOS.
Now i have installed the last BETA version of asus P2B (1014.003)
But my hard disk is also not recognized

Can you help me? Thanks!
Tom
(sorry for my bad english, i'm Dutch)