I have an ASRock 939NF6G-VSTA which I use as a server running Server 2008 R2 which is 64 bit and is based on the Windows 7 NT kernel. I recent bought two 2TB Green WD Advanced Format drives and I have had all sorts of problems setting up a RAID array using the Nvidia SATA ports. The motherboard has a free PCI-e X16 slot, intended for graphics, but I could quite easily add a RAID card. Would a PCI-e Raid card operate in this slot and would I get the full bandwidth? I ask this because I wonder if it is worth the investment in a Hardware Raid solution over the typical software cards or motherboard RAID.