If that is the case, the Marvell controllers may not be a good option and data loss possible. I've not used anything larger than 1 TB drives.
You could then use 1 x 2TB for the Bios's recovery drive for the array and the other for general data back ups/storage. -- The only thing necessary for the triumph of evil is for good men to do nothing - Edmund Burke
I've found this on the FAQ's page for your motherboard.
quote:Q. Why can't I enable some RAID function? A. Due to the limitation of PC structure, the capacity of shadow memory is fixed. If the shadow memory is not enough, some of the RAID controllers will be inactive.