i started the installation, but when it recognize only my main HDD (i have 3, and it only recognize the system and suggested to format it) i exit the installation program, restated, and since then nothing works. I changed all the bios settings back, and still nothing. Sometimes it suggest me to send back to AHCI (although i think it was set to SATA or IDE)
Hackintoshes only work with AHCI. If you installed Win 7 without having configured AHCI it won't work when you try to go back to it with AHCI turned on.