Hi, Thanks for this guide, Fernando. It's really helpful I´m having problems to install Windows XP 32 in AHCI mode in my asus M4N78 PRO motherboard with Geforce 8300 Chipset. I tried to integrate SATA_IDE driver v11.1.0.43 but didn't work, so I did with v11.1.0.33 drivers (I read it in page 91). I have succeed to install OS but it doesn't seem to work properly... Windows has become slow, HDD don't appear as "removable devices", I can´t enable NCQ... Is it normal?? Sorry for my bad English Thanks!!