Hi again,
I use correct controller, correct setting in the bios. At startup, I press F10 to enter in nvidia raid utility and create my raid with the 2 drives. After I reboot, at detection it said raid...Healty. But in windows, I'm supposed to see 1 drive in disk manager but i see the 2 disk and curioustly, device manager see 2 disk ? But supposed to see just 1 device...
If someone have ideas it will help but for the moment i will use si3114 controler and put my wd74 on port 0 of nvidia.