How can I change the Marvell SATA BIOS controllers settings on this card?

It's not detected via my motherboard's BIOS (Asus P7P55D-LX) which alread has it's own onboard marvell controller.

I need to change the settings to AHCI rather than what it is set to now (IDE) in order to increase performance with my SSD.

Cannot find any information on this on the internet. Can anyone advise me on this?