Do you have try just to boot with your cd if windows setup can find drive without driver ? Maybe I am wrong, but I suppose, that this is the reason for all your troubles. If you want to create a new Raid array with 3 instead of 2 hdd's, it is not enough to enable the 3rd SataRaid port within BIOS, you have to add the new hdd to the array by nForce Raid utility.Before you do that, I would recommend a backup of your important datas. CU Fernando ok ok when i spoke about my 3° drive, it's only a data store drive, don't want to add it to my raid. I just unplugged for mbr problem and add it at the end on setup. I have only sata port 1&2 set in raid mode.