Hi,
I tested few things :
- I tried to safe erase my SSD to become out-of-the-box but no success, with samsung magician, so i used the windows tool to remove partition. (i tried the following things with the SSD with partition and without (but no OS on it))
- I plugged only my SSD and CD/DVD on sata ports
- Tried to turn RAID, but can't
- Tried to plug others disks (HDDs) and i can RAID with 2 disks minimum
conclusion : I don't know why, I can't put RAID for my new SSD (i tried on others HDDs too, same issue, 2 devices minimum)
Thanks again for helping me.