Not recognizing hard drives.

I have 2 120 gig WD Sata drives, and ive tried about every combo i can think of. New power, using both sata power and the normal molex, new sata cables, even moved the jumpers over to match the picture on top of the HD. And even worse, i cant get to the bios anymore, not sure why, dont get any errors, booting stops at the Raid part, where it tells me to press F4 (do that too, nothing.) Not sure whats up, any help would be greatly appreciated. Thank you.

Are you using a card or onboard? Have you tried just one?