I have looked from MSI and review sites for this board and it only has 5 SATA ports and only 4 of them are Intel and even if you some how got a board with 6 SATA still only 4 of them are Intel as that’s the max the ICH7R want up to.
You will have to reformat and start over I don't know what new disks you have but you can only make a array upto 2TB with the ICH7R so 4 1TB drives in RAID 10 will be 2TB.
Hi Peter, thank you for your fast reply. It seems things don't look too good then because I bought 4 drives, each 2TB each. Data loss and not beeing able to use the maximum ammount of diskspace seems like a bad deal to me. I'll figure something out. Thank you for your input