Help me! GA-EP45-UD3R Integrated Peripherals bios setting for Windowa XP & AHCI mode

Hello

Excuse my english

I have a Gigabyte GA-EP45-UD3R and three sata HD connected to yellow sata connector 0, 1, 2.

Two ssata Optical Drives (Pioneer 215 & Optiarc 7240) connected to yellow sata connectors 4 & 5.

When i attempt install Windows XP in AHCI mode before to start from WXP CD the screen shows MBR failure and then something about floppy (I have floppy drive installed) but nothing abaut optical drive.

It seems the donīt see the optical drive.

If i install WXP in ide mode no problem but iīm interestin in AHCI because i have a rack and i need Hot swap.

Help me to setting Integrated Peripherals bios setting and/or to se where is the problem.

Thanks